So, let's continue talking about returning laptops to factory condition. Today it will be about restoring to the original form of laptops from Samsung... Traditionally, before describing the recovery procedure, I strongly recommend that you read the article if you have not done so earlier.
I must say that the recovery mechanism for Samsung laptops is somewhat different from similar tools used by most other manufacturers of mobile computers, in which HDD is fully formatted, after which data is loaded from the recovery partition to it.
In Samsung laptops, everything happens much the same, but there is a slight difference.
When you turn it on for the first time mobile computer made by Samsung, we are offered to partition the hard drive into two logical drives: C and D. This procedure is performed only once. After the system is restored, it does not repeat itself. Therefore, strictly speaking, a 100% return to the factory state is not provided.
All recovery procedures only affect the C drive. You can either format the D drive yourself or use it to store data from the C drive. After the system is restored, you can return them back.
Well, if operating system is in such a state that it can no longer boot, use the recommendations of the article to save the data.
To start the procedure for reanimating the system from the recovery section immediately after turning on the computer, you must start clicking on the F4 button. In addition, some models may have function button recovery, paired with the Fn key.
But the F4 method is universal and also requires pressing only one key, so it is simply more convenient. But I leave this to your discretion. The end result is important to us.
If everything is done correctly, the utility splash screen will appear. Samsung Recovery Solution. We stop pressing the buttons and wait.
After a while, we will be offered to familiarize ourselves with the text of the agreement. We read it and accept it if we want to move forward.
We will be offered a choice of a set available actions... We select the item "Recovery".
From the available options, select "Full recovery".
A list of available system backups will appear. If there are several, choose the earliest one. It is automatically created by the system when the computer is first started. Then click "Next".
We will be warned that all data will be destroyed. Since it is assumed that you have already saved all necessary information, click Yes.
Preparation for the operation will start full recovery laptop.
After that, the recovery procedure will begin directly. It takes some time. Please be patient.
When finished, the following message will appear on the display:
Click OK. The computer restarts and prepares for the first startup. Do not touch or press anything. If the laptop starts to reboot again, then this is how it should be. Don't bother him. You need to wait until the following message appears on the display:
Its appearance means that the recovery procedure is completed and the operating system is in the first start mode.
That's all. Now you know how to restore Samsung laptops to its original state.
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Phone recovery phone / smartphone Samsung model j5 j 5 on an operating system with a screen - dpi brick. A modern mobile phone is such a complex thing that it is better not to go into its insides unnecessarily.It happens that due to lack of knowledge or negligence, after an unsuccessful flashing, changing the software, the phone does not turn on, it is blocked. In this state, the phone / smartphone Samsung model j5 j 5 on an operating system with a screen - dpi called "brick".
It's clear what to do with a brick, but what to do with such a phone? How to reanimate and run it? Universal remedy of course not, for every model Samsung gear frontier 2, scx 4200, a8 2018, j2 and other models, we have our own recovery methods phone.
Errors on the phone, how to turn on the phone Samsung ml, s7 edge, led pro ssd evo. Recovery from a brick state.
How to recover Samsung s 8 s8 plus, 6 black, j3 gold, Samsung s 7 32 64 64gb, cover, np series vs phone after flashing or from a locked state, or when the phone does not turn on, you can read on specialized forums and sites.
Negligence or error when flashing the device of a Samsung phone / smartphone model j1 mini on an operating system with a screen - dpi.
If you did something unhealthy with your Samsung np series vs, a5, j120f phone, and after that it stopped loading at all and does not start up either in recovery, or in FTM, or in fastboot, then do not despair. There remains one more remedy:
Restoring dead Samsung phones that won't turn on at home.
- recovery of Samsung phones, after unsuccessful firmware... The description posted on the site uses the so-called Jag method. The essence of the method is that it is necessary to make a special Jag plug by soldering the contacts (4 and 5) to each other through a 301 kOhm resistor. This Jag is inserted into the phone Samsung phone gear frontier 2 - dpi with the battery removed. More details on how to restore your phone in this way are described here.Restore Samsung phone to working condition.
- for phone owners. You can view a list of all supported devices, such as Samsung scx 4200 - dp phones and others, the Motorola Phone Recovery FAQ is posted on the link above. The site also provides a description of restoring the phone by closing the contacts with the battery removed.Before restoring your phone, you need to download and install special program on the pc: Random "s Developments Flash & backup. Next, you need to: remove the battery, close contacts 4 and 5 on the phone connector (see photo), keeping the needles closed insert the battery, open the needles, insert the cord into the connector and connect to the computer, into Random "s Developments Flash & backup program should display a message that the Samsung a8 2018 phone - dpi is connected.
Recovering a Samsung phone from a bricked state.
- this method of recovering Samsung 3400 phones, hd, gb different models, different manufacturers... When restoring a Samsung m2070, gear fit, mz phone, special software is used: a standard flasher from MTS, a programmer from ZTE and a HEX editor. A detailed description with screenshots of actions is posted on this page of the site (see link).Samsung phone recovery via SEMCtool program.
- this instruction is to restore some Samsung models. Breakdown symptoms: Samsung s5 mini, 2160, i9500 freezes on "Please wait", blinks with white display, no network signal, no connection via DCU-60, neither via "C" or via "2 + 5". The method of restoring phones of the Samsung j2 - dpi phone posted on this site is to use a service cable, together with the SEMCtool v8.7 software, which can be downloaded for free, on the same site.Recovering a Samsung cell phone damaged by water - a drowned man.
- instructions with pictures on how to restore a Samsung s5230, wave 525, ace duos s6802 phone after dropping it into the water. In order to prevent corrosion of the phone elements of the Samsung ml - dpi phone, you must very quickly pull it out of the water and remove the battery. Then the case is removed and the phone is placed in a jar filled with rice for two days. The fact is that rice absorbs moisture very well and is an excellent absorbing agent. Plain homemade rice will draw out all the moisture from the smallest components of the Samsung s4 phone, Galaxy s2 galaxy 2, Galaxy A5 SM-A500F, and also prevent corrosion. Cat litter can be used as an absorbent at home.How to fix "Error performing operation" in Java on Samsung phones.
- instructions for users of Samsung A7 SM-A700F, Galaxy Note 4 SM-N910C, Galaxy S6 SM-G920F phones in case of problems installing applications or games on the phone. If, when entering the application / game folders, the message "An error occurred during the operation" pops up, this means that the Java machine on the Samsung s7 edge phone has crashed - dpi. This problem can be eliminated simple extraction and inserting a memory card into the phone. If this does not help, you will need more complex actions... To restore the Java machine to work, you will need to reflash the firmware FS file and do finalization. More details on how to do this are described in this article.How to turn on your Samsung phone.
To turn on touch phone Samsung Galaxy A3 SM-A300F, Galaxy Grand Prime VE Duos SM-G531H / DS, Galaxy Tab S2 8.0 SM-T715 LTE, you need to do the following:
Press and hold the Power key until your phone vibrates.
- if the phone was turned on, but the screen is dark, press and release the power key to turn it on.
- an image of a lock will appear on the screen; to unlock the screen, drag the lock icon or click on it.
- when prompted to enter the code, enter the PIN from your SIM card. In most cases this is 0000 and click OK.
- wait for the phone to start.
Note: The PIN code from the SIM card is on a plastic card or in the package received when buying a SIM card in the salon cellular... But be careful, if the PIN code is not correct three times, you can activate the SIM card only through the PUK code, which is also included in the package received when buying a SIM card. If the PUK code is lost, it will be possible to restore it only with the passport of a citizen of the Russian Federation for which the SIM card is issued. Therefore, do not enter the PIN code incorrectly more than three times. If you have lost your PIN-code and there is no way to restore it through your service provider, you can do the following.
Cancel the PIN request when turning on your Samsung Galaxy Tab 3 7.0 Lite SM-T111 8Gb, Galaxy Tab 4 7.0 SM-T231, Galaxy S5 SM-G900F 16Gb. To do this, find another SIM card with a PIN code known to you (the PIN code can be assigned in the settings) and insert it into your phone. Turn on the phone according to the steps described above, when entering the password, enter the PIN code you know from another SIM card. After successfully turning on the phone, go to the phone settings and cancel the PIN code request when turning on the phone's phone Samsung led pro ssd evo- dpi. Having done this, turn off your phone and change SIM cards. Now, when you turn on the phone, the system does not require you to enter the PIN-code.
This is of course elementary advice, but there is a solution to problems and more serious.
Advice. Initially, the SIM PIN is provided by your network operator, but you can change it later in the Options menu. To correct a mistake when entering your SIM PIN, tap the Delete icon.
Samsung phone won't turn on! Phone self-test error
The very first thing to do is to try to reflash the Samsung phone y s5360, s6102, s5380d. But the problem of not turning on the phone can be not only because of the "flown" software, but also because of the breakdown of the power button to turn off the phone, breakdown or failure of the battery - charger, etc.
Samsung phone won't turn on. What to do?.
- very detailed description fixing the problem the phone Samsung c3300i, 5230, s5830 does not turn on, how to turn on the phone. The article is divided into points, with the solution of each problem point by point: checking the power source - the battery, the power button is faulty, the power button circuits, the power controller or its soldering, secondary power sources - the power supply of the processor, memory and rest. devices, setting software mobile phone phone samsung led pro ssd evo - dpi.Instructions for restoring the phone Samsung s 8 s8 plus phone on the OS platform on a screen with a resolution, the type of non-working state is brick More details on how to restore the device, turn on the touchscreen Samsung j7 sm neo, s9 s 9, j5 j 5, j1 mini, gear frontier 2, scx 4200, a8 2018, j2, ml, s7 edge, led pro ssd evo, s 8 s8 plus, 6 black, j3 gold, ssd 850 usb, s 7 32 64 64gb, cover, np series vs, a5, j120f , 3400, hd, gb, m2070, gear fit, mz, s5 mini, 2160, i9500, 4100, s5230, wave 525, ace duos s6802, s4, galaxy s2 galaxy 2, Galaxy A5 SM-A500F, A7 SM-A700F, Galaxy Note 4 SM-N910C, Galaxy S6 SM-G920F, Galaxy A3 SM-A300F, Galaxy Grand Prime VE Duos SM-G531H / DS, Galaxy Tab S2 8.0 SM-T715 LTE, Galaxy Tab 3 7.0 Lite SM-T111 8Gb, Galaxy Tab 4 7.0 SM-T231, Galaxy S5 SM-G900F 16Gb, Galaxy Grand Prime VE SM-G531F, Galaxy Core 2 SM-G355H, Samsung Galaxy S6 Edge 32Gb, young, y s5360, s6102, s5380d, c3300i, 5230, s5830, s5830i, s5222, bada, s7562, c3322, s5660, s3 mini, c3530, galaxy s iii, champ, i91 00, grand, c3010, s5300, galaxy s plus, galaxy la fleur, c3520, pocket, i8160, c6712, 5610, galaxy tab 10.1, galaxy note, tab 2 10.1, galaxy tab 7.0, tab 2 7.0, galaxy tab 3g, galaxy tab 16gb, gt p5100 galaxy tab, n8000, p3100, p5110, p3110, tab 10.1, ativ smart pc, galaxy 3, xe500t1c, windows, n5100, tab2, galaxy tab 8, tab 7.7, la fleur, s3, note, s5610, star, s5250, i9300, s5260, sgh, gt c3011 and what to do if cell smartphone does not turn on.
Popular Samsung Reviews
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Recovery mode (aka recovery) on Android is a special hidden menu and is available on any Samsung Galaxy smartphone. It is a great tool that can be used to erase data, factory reset, format the system partition, install a custom kernel, new firmware and many other things that should allow you to improve your smartphone and its system.
The recovery mode can be stock or custom. Stock recovery mode (Stock Recovery Mode) this is the first and original version that is installed initially on a smartphone and it is with it that you can work immediately after purchase. This mode works on a stock smartphone or already on a rooted one, but not on a Galaxy smartphone that is flashed with custom firmware.
Custom recovery mode ( Custom Recovery Mode) can be installed only after obtaining root rights on the smartphone. There are two of the most popular custom recovery for Galaxy smartphones ClockworkMod - CWM and TWRP - Team Win Recovery Project. They are both very similar in their capabilities and you can get the same functionality in either of them. Below you will find out how to boot a Samsung Galaxy smartphone in recovery mode.
How to boot a Samsung Galaxy smartphone into stock / CWM / TWRP recovery mode:
- Turn off the device completely.
- Press and hold the volume up buttons, Home button and the power button at the same time.
- Release the buttons when the smartphone screen turns on and you see the stock / CWM / TWRP recovery logo.
To upload to normal mode you need to return to the main screen of the recovery mode and select the "Reboot system" item.
Most of the articles in the X-Mobile section are devoted to hacks and tweaks that require getting root rights, modifying the firmware or replacing it with custom. However, not every reader is ready to subject his smartphone to such operations, fearing that they can turn the device into a brick or lead to instability in work. Today I will debunk these myths and show that even in the most stalemate situation, it is not so difficult to bring a smartphone back to life.
Destroying myths
Let's talk about what it is all the same to "turn a smartphone into a brick" and what other pitfalls may await the user on the way to change the system and install custom firmware. What glitches can you catch and can you kill a smartphone by flashing it incorrectly? Will you lose your warranty forever or can your smartphone be returned to its previous state? Can custom firmware fail the smartphone owner at the most inopportune moment and are they worth it?
Myth 1. Incorrect flashing can kill a smartphone
A fall from the fifth floor can kill a smartphone, but not a flashing. The main problem faced by anyone who wants to reflash a smartphone is that during the installation of the firmware, a failure may occur, which will lead to its inoperability, and the smartphone will actually turn into a brick.
All this is true, but only on paper. To understand why, it is enough to understand how the process of flashing a smartphone works and what system components in this case are used. To be able to install third-party firmware on a smartphone, you need to unlock the bootloader (not in all cases), get root and install a custom recovery console (ClockworkMod or TWRP) that can install firmware with any digital signature.
The Recovery Console is stored in a separate section of the internal NAND memory and is not connected in any way with the installed operating system. After installation modified version the console will be able to flash custom firmware or even another OS (Firefox OS, for example). If a failure occurs during the installation of the firmware, the smartphone will not be able to load it, but the recovery console will remain in place, and all that needs to be done is to reboot into recovery and reinstall the firmware.
In addition, any custom recovery console contains a backup / recovery function that allows you to backup main firmware and restore it unchanged (with all applications, settings and data) in case something goes wrong. In fact, the smartphone can be returned to its original state.
You may be asking: what happens if a failure occurs during the installation of the Recovery Console itself? Nothing, in this case, the opposite situation will turn out when the operating system itself remains in place, and the console is lost. To deal with it, you just need to re-flash recovery directly from Android.
Hypothetically, one can imagine a situation where both the firmware and the recovery console will be killed (although this is rather difficult to do), but even in this case, the primary bootloader will always remain in place, flashed into the permanent memory of the smartphone.
Conclusion: kill the smartphone by installing third party firmware via a custom recovery console is not possible. Either recovery or the primary bootloader will always remain in place.
Myth 2. Custom firmware is unreliable
Firmware firmware strife. In the open spaces world wide web can be found great amount Android assemblies for every taste and color, and most of them are really slag, which can lead to instabilities in the operation of the smartphone and the loss of some functionality. Therefore, the first thing to remember is that you should only deal with serious custom firmware developed by large teams of experienced developers. First of all, these are CyanogenMod, Paranoid Android, AOKP, OmniROM and MIUI.
Second. There are two types of firmware: officially supported and ported third party developers... The same CyanogenMod, for example, has an official version for smartphone Nexus 4, but lacks one for the Motorola Defy. But for Defy there is an unofficial port of CyanogenMod 11 from the developer with the nickname Quarx. Their difference lies in the fact that the CyanogenMod team is responsible for the support and proper performance of the former, while the latter is personally responsible for Quarx. Official firmware versions are usually fully functional, but the correctness of the second depends on a third-party developer.
And the third thing. There are stable and development versions of the firmware. Stable versions CyanogenMod are indexed M (CyanogenMod 11.0 M7, for example). This firmware version usually does not contain bugs. Development versions (in the case of CyanogenMod, these are daily nightly builds) may contain bugs and are therefore not recommended for everyday use.
Conclusion: if you install a stable official version of "normal" firmware on your smartphone, the risk of encountering bugs is minimal. Everything else is for the experimenters.
Myth 3. Software that requires root privileges is capable of corrupting a smartphone
In theory, a rooted app can do whatever it wants with a smartphone's firmware, including erasing it completely. Therefore, you need to be extremely careful with such software. The software that we are talking about on the pages of the magazine is completely safe and tested in our own skin. In addition, for the entire time of using smartphones on Android (and this is starting from version 1.5) I never did not come across a situation where rooted software would kill a smartphone.
Software distributed through Google play, usually fully corresponds to the declared characteristics, and if it led to a brick or left a backdoor in the bowels of the smartphone, it would not last even a week in the store. In any case, here you need to follow the "trust but verify" rule and carefully read the instructions for using root applications.
Myth 4. Root rights make a smartphone vulnerable to viruses
It is not root permissions that make a smartphone vulnerable to viruses, but bugs used to obtain them. Rooting tools and viruses can exploit the same Android vulnerabilities to gain root privileges, so the very fact having root on the device does not change anything. A well-written virus will not ask for rights in a standard way betraying his presence, he will instead use the same vulnerability to get them stealthily.
Moreover, having root, you get the opportunity to install a fresh Android version(in the form of custom firmware), in which these bugs have already been fixed. Also, do not forget that most custom firmwares allow you to disable root or create whitelisting applications that can use these rights.
Myth 5. A rooted smartphone can fail.
The software designed to get root does four simple things: it launches an exploit that allows you to get root privileges on the system, mounts the / system partition in write mode, copies the su binary to the / system / xbin directory, which is required to get root privileges in the future, and sets SuperSU app or SuperUser, which will take control every time an application asks for root privileges using su.
None of these steps can crash or kill the smartphone. The only thing that can happen is that the exploit will cause a segmentation error and the smartphone will reboot, after which it will continue to work normally.
Myth 6. Getting root and installing custom firmware will void my warranty
The warranty is lost not from the very fact of getting root, but because of its discovery by the service center. Most devices can be unrooted with Universal apps Unroot or reinstalling the stock firmware using the manufacturer's official app.
There are, however, two exceptions to this rule. The first is the Knox system pre-installed on new smartphones and Samsung tablets such as Galaxy S4, S5, Note 3 and Note 10.1. Knox provides elevated level Android security by responding to any firmware modifications and installation of third-party kernels and firmware. In the event that the user performs these actions, the system sets up a trigger that confirms the fact of the modification. The trigger is implemented in hardware (eFuse chip), so reset it to starting position will not work. On the other hand, it is not entirely clear whether service center on this basis, to repair the device. Second: the eFuse chip is installed on some other devices (for example, smartphones from LG), and it also allows you to accurately determine if the smartphone has been rooted or flashed.
If we talk about custom firmware, everything is more complicated here. Usually, a flashing operation requires unlocking the bootloader, and this can be done either using special exploits or using the web service of the smartphone manufacturer. In any case, the unlocked bootloader will definitely indicate that the smartphone did not belong to a blonde.
On some smartphones, it is possible to lock the bootloader back, but you should learn about this separately, and also keep in mind that a newly locked bootloader will most likely receive the Re-locked status, and not Locked, as it was originally (this happens on HTC smartphones, For example). The only exceptions are smartphones and tablets of the Nexus line, the bootloader of which can be locked and unlocked in three clicks without any dancing with a tambourine, and no one will pick on anything.
INFO
On Linux, ADB and Fastboot can be installed separately from Android SDK... On Ubuntu: sudo apt-get install android-tools-fastboot. On Fedora: sudo yum install android-tools.
To prevent the Knox system from interfering with root applications, it can be disabled using the following command from the terminal: su pm disable com.sec.knox.seandroid.
conclusions
Getting root and flashing a smartphone - absolutely no dangerous operations that cannot turn a smartphone over for purely technical reasons. The only exception is trying to hack the bootloader to unblock it. In this case, the eFuse chip (if there is one in the smartphone) may work and block the ability to turn on the smartphone.
Fortunately, today smartphone manufacturers either prefer not to block the ability to turn on a smartphone with a hacked bootloader (by setting a trigger indicating the fact of such an action, as Knox does), or they implement a special web service that allows you to painlessly unlock the bootloader with the loss of the smartphone warranty. which saves users from having to risk breaking the bootloader.
Problems that may arise when flashing
So, now let's talk about what problems can arise with getting root and flashing and how to deal with them.
Scenario one: after an unsuccessful flashing, the smartphone stopped loading
An unsuccessful flashing can be caused by several factors: the battery has run out and the firmware is only half filled, the firmware turned out to be faulty or intended for another smartphone model. In the end, there was simply not enough space on the smartphone, which can happen when trying to install a fresh version of Android on a smartphone three or four years ago.
Outwardly, all these problems usually manifest themselves either in endless smartphone resets to the manufacturer's initial logo, or in the so-called boot loop, when the boot animation spins on the screen for more than five to ten minutes. Problems with the screen (multicolored ripples) and a non-working touchscreen are also possible, which also prevent the use of the smartphone.
In all these cases, it is enough to do one simple thing: turn off the smartphone by long pressing the power button, then turn it on with the volume down button held down (some smartphones use a different combination), and after you get into recovery, reinstall the firmware (Install zip from sdcard -> Chooze zip from sdcard) or restore the backup ( Backup and restore -> Restore). Everything is easy and simple.
Scenario two: firmware works, but recovery is not available
This can happen after unsuccessful installation or updating the Recovery Console. The problem is that after restarting the smartphone and turning it on with the volume down button pressed, a black screen appears, after which the smartphone is either reset or freezes.
Solving this problem is not easy, but very simple. You can install the recovery console on the vast majority of smartphones using TWRP applications Manager, ROM Manager or ROM Installer. They determine the smartphone model themselves, download and flash the required recovery without requiring a reboot. If you cannot restore the console with their help, it is enough to find instructions on install recovery to your device.
Scenario three: neither firmware nor recovery is available
To be honest, it is difficult for me to imagine such a scenario, but, as practice confirms, it is quite real. There are two ways to get out of this situation: use fastboot to upload recovery to a smartphone, or use a tool from the manufacturer to install the stock firmware. We will take a closer look at the second method in next section, and I'll tell you about fastboot here.
Fastboot is a tool that works directly with the device's primary bootloader and allows you to upload firmware to your smartphone, recover and unlock the bootloader (in Nexus devices). Fastboot support is available in many smartphones and tablets, but some manufacturers are blocking its use. So you have to consult the Internet about its availability.
You need drivers and Android SDK to access fastboot. When they are installed, open command line, go to the directory SDK installations, then to the platform-tools catalog, turn off the smartphone, turn it on with the volume buttons held down (both) and connect it to the PC using a USB cable. Next, you need to find recovery image in the .img format for your device and execute the command:
$ fastboot flash recovery image.img
Or even force the smartphone to download recovery without actually installing it:
$ fastboot boot image.img
In the same way, you can flash official firmware update:
$ fastboot update update-file.zip
Find the right one for your device recovery You can either on the TWRP website, or in the XDA-Developers and w3bsit3-dns.com forums.
We return the smartphone to its original state
In this section, I will talk about ways to return your smartphone to a clean drain, no matter what state it is in. These instructions can be used both for splitting up the smartphone and for removing traces of rooting and flashing. Unfortunately, I cannot tell about all possible models, so I will focus on the four most popular flagships: Nexus 5 (I call this instance the control one), Galaxy S5, LG G2 and Sony Xperia Z2.
Nexus 5 and other Google phones
Returning Nexus devices to their original state is easier than any other smartphone or tablet. In fact, it is so simple that there is nothing to even talk about. In fact, all you need to do is install the ADB / fastboot drivers (in Linux, even they are not needed), download the archive with the firmware and run the script. Step by step, the whole operation looks like this:
- from here.
- Download and install the Android SDK.
- Download the archive with the firmware for the desired device from Google.
- Turn off the device, turn it on with the volume buttons held down (both) and connect using a USB cable.
- Unpack the archive with the firmware and run the flash-all.bat (Windows) or flash-all.sh (Linux) script and wait for the operation to complete.
- We launch the command line, go to the directory with the Android SDK, then platfrom-tools and execute fastboot command oem lock for locking the bootloader.
For those wondering what the script does, here's a list of commands:
Fastboot flash bootloader bootloader-DEVICE-NAME-VERSION.img fastboot reboot-bootloader fastboot flash radio radio-DEVICE-NAME-VERSION.img fastboot reboot-bootloader fastboot flash system system.img fastboot reboot-bootloader fastboot flash userdata recovery recovery.img fastboot flash boot boot.img fastboot erase cache fastboot flash cache cache.img
Galaxy S5
With Galaxy smartphone The S5 is a little more complicated, but generally quite simple. This time, you will need the Samsung Odin application, with the help of which the smartphone will be flashed. Sequencing:
- Download and install latest version Samsung USB drivers from here.
- Download and install the latest Odin version from here.
- Go to samfirmware.com, enter the model SM-G900F in the search, find the firmware marked Russia, download and unpack it.
- Turn off the smartphone and turn it on with the volume down and Home buttons held down, wait five seconds until a warning message appears.
- Press the volume up button to put the smartphone into Odin mode.
- We connect the smartphone using a USB cable.
- Launch Odin, press the PDA button and select the file with the tar.md5 extension inside the directory with the unpacked firmware.
- We press the Start button in Odin and wait for the firmware process to end.
As I said, this operation will return the smartphone to its original state, but it will not reset the trigger, system-installed Knox (if she was in standard firmware). Therefore, the service center may refuse to repair.
LG G2
Restoring the LG G2 to its factory state will also not cause special problems... The number of steps in this process is somewhat larger, but by themselves they do not require special training and knowledge. So, what to do to return the factory firmware to the G2:
- Download and install ADB Driver Installer from here.
- Downloading official firmware(Europe Open 32G or Europe Open) from here.
- Download and install the LG Mobile Support Tool and FlashTool (goo.gl/NE26IQ).
- Turn off the smartphone, hold down the volume up button and plug in the USB cable.
- Expand the FlashTool archive and run the UpTestEX.exe file.
- In the window that opens, select Select Type -> 3GQCT, Phone Mode -> DIAG, in the Select KDZ file option, select the firmware downloaded in the second step.
- Press the CSE Flash button at the bottom of the screen.
- In the window that opens, click Start.
- In the next window, select the country and language and click Ok.
- We are waiting for the end of the firmware, and then turn off and turn on the smartphone.
It's all. But keep in mind that, as is the case with Samsung, the smartphone will still have Rooted status, and this cannot be fixed.
Sony Xperia Z2
Now how to return to the factory state Sony smartphone Xperia Z2. As in the previous two cases, this will require stock firmware and official utility for firmware. You launch the utility on your PC, connect your smartphone with a USB cable and start the update process. Step by step it all looks like this:
- Download and install ADB Driver Installer from here.
- We reset the smartphone to factory settings.
- Download and install Flash Tool from the official Sony website and latest firmware from here.
- Copy the firmware file to the C: / Flashtool / Firmwares directory.
- Turn off the smartphone and turn it on with the volume down and Home keys held down.
- We connect the smartphone to the PC using a USB cable and launch the Flash Tool.
- Press the button with the lightning bolt in the Flash Tool. In the window that opens, select Flashmode, double-click on the firmware in the list that opens.
WARNING
In many smartphones, a jailbroken bootloader will prevent over-the-air updates.
In 90% of cases, unlocking the bootloader will result in the deletion of all data from the smartphone, including the memory card.
conclusions
Flashing a smartphone, and even more so getting root access, is not at all such scary and dangerous operations as they might seem at first glance. If you do everything correctly and do not resort to tools that unlock the smartphone's bootloader bypassing the manufacturer's tools, it will not be possible to turn the smartphone over. Yes, in some cases you will have to tinker in order to put everything back in place, but what is better is to use a locked smartphone, which does not allow you to do even half of the things that it is capable of, or to get full control over the apparatus? In the end, reinstalling windows on the PC does not scare anyone.
Articles and Life Hacks
To solve the problem, how to restore tablet bootloader, you will have to if the device shows the following symptoms:
After an unsuccessful firmware, the tablet computer does not turn on at all;
- when switched on, the display lights up for a few seconds and then goes out again;
- the computer does not recognize the gadget when connected via a USB cable.
This trouble can affect both those who decided on, and those who use a fancy expensive device. There is only one solution in this case - to restore the SPI bootloader.
The first stage of restoring the tablet bootloader
The most important thing that you will need during the whole process is the LPT programmer. You can do it as follows:
1) Buy an LRT connector and 4 150 Ohm resistors.
2) About 10 cm of IDE cable can be used as wires.
3) Power can be connected externally, if you just tape two wires to the BIOS battery with electrical tape.
4) Find the LRT pinout on the Internet.
5) Now, following a certain sequence, solder the wires to the LRT, and solder this structure to the SPI memory.
6) You can solder the LRT to the SPI chip without removing it from the board, but then before that you must turn off the tablet itself.
Now you can proceed to the next part of the bootloader repair process. tablet pc... And the first stage is over. But, frankly, before turning on the device, opening programs in it and the subsequent one is still far away.
The second stage of recovery of the tablet bootloader
The first thing you need to do here is build the firmware for your device. For this:
1) Download the original firmware version from the manufacturer's official website.
2) From this firmware, select two files u-boot.bin and w-load_DDR3_700M_1066M_16bit_1_256MB_0150001.bin.
3) Download a bin file editor, it can be, for example, Hex Editor Neo.
4) Now open the editor, go to the "File" section and go to "New file".
5) Now select "Edit", and there find "Change file size".
6) Set the file size - 00080000 Hexadecimal, this value will be 512 KB.
7) Go back to "Edit" and select "Insert file", put the file u-boot.bin.
8) Now again go to "Edit" and select "Go to offset", here enter 00070000.
9) After these actions, you should be transferred to line 00070000.
10) Here you click "Edit" and go to "Insert file", place another file w-load_DDR3_700M_1066M_16bit_1_256MB_0150001.bin.
11) Save the result and name it spiflash.bin.
At this point, the stage of collecting the firmware is over. You can proceed to the most important process of how to restore the tablet bootloader.
The third stage of restoring the tablet bootloader
After the programmer that was assembled in the first step is soldered to the SPI chip, you will need to:
1) Run the spipgmw program in the console (Start - Run - Cmd).
2) Now make spipgmw / i without a programmer, and then with a programmer, if the output of the program changes, then you are on the right track.
3) Next, do the following:
- disable the write protection bit - spipgmw / u;
- erase the small circuit - spipgmw / e;
- upload the firmware - spipgmw / p, specifying the path to the file with the firmware;
- read the small circuit - spipgmw / d, indicating the path to save the contents of the working memory of the firmware from the microcircuit;
- compare the file of the contents of the working memory of the firmware with the file of the firmware itself (for this right click mouse click on the file, select "Properties", then - "Checksums" and at the end - "Compare"). If everything fits together, then solder the SPI chip in place, if not, then go back to step # 3.
And the most important thing - when you turn on the tablet for the first time, make sure that the flash drive is inserted into it. original firmware, because immediately after switching on, the installation of the factory firmware will automatically start.
