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What happens if you encrypt your phone. How to encrypt data on your Android device

How to enter Recovery? Many instructions for upgrading and Android firmware require actions from Recovery menu... What this mode is and what it is for, you will learn from this article. What is Recovery? Recovery is a special mode Android downloads in which:

  • perform a full Android data reset
  • flashing a smartphone
  • get Root rights

How to enter Recovery? The Recovery menu is usually found in all smartphones and tablets from Samsung, but absent in other brands of Android smartphones, but it can be easily added by flashing this section to your Android device.

If the Android smartphone has a Recovery menu and has not been changed, then it is called STOCK, if it was not there or installed third party menus Recovery, it will be called CUSTOM.

There are basically two types of custom recovery CWM and TWRP, less common 4ext,Philz CWM, (different development teams).

How to enter Recovery

ATTENTION! If the Recovery menu is absent or not installed, then it is IMPOSSIBLE to enter it!


Method for Samsung

Before transferring a smartphone or tablet recovery, disconnect Samsung from charger or USB cable!

New models

Turn off Android and hold down Central button + button Volume Up+ button On off

Turn off Android and hold down the Center button + Volume Up button + On / Off button

in a universal way (read below).

For Samsung Galaxy S8 - S9

  1. Pinch and hold special button Bixby & Volume Up + Power
  2. After the screen saver appears, lower the power button, but continue to hold the Bixby button and Volume Up
  3. Hold these buttons until the screen shows android logo on a blue background
  4. Release the buttons
  5. After a few seconds, the Galaxy S8 will boot into Recovery Mode.


Older models and some tablets

  1. Turn off Android and hold down Central button and button On off
  2. Turn off Android and hold down the button Volume Up and the button On off

or in a universal way (read below).

Method for HTC

Switch to bootloader mode, then:


If suddenly it doesn't work out, use in a universal way(read below).


Method for Google Pixel and Nexus

Turn off Pixel / Nexus and hold down the buttons Volume DOWN + ON / OFFIn the menu, use the volume keys to find the Recovery menu and confirm the selection with the ON / OFF button:

If suddenly it doesn't work out, use in a universal way(read below).

Method for SONY

Turn off, turn on and when to appear on the screen the logo Sony or when the indicator will light upPinch / Press(possible options):

  • Volume DOWN
  • Volume Up
  • Click on the logo
  • Or turn off Sony, hold down the "Power" button, wait for a couple of vibrations, release the power button and hold down the "Volume Up" button

in a universal way(read below).

For selected Motorola and Lenovo models

  • Turn off Android
  • Press simultaneously the buttons "Volume up" + "Volume down" + "Power"

For other versions of Motorola and Lenovo - turn off Android and hold down "Volume down" + "Power"

If you can't use in a universal way(read below).

A universal way for all Android devicesusing a PC and ADB tools

(Asus, HTC, Lenovo, Sony, HTC, LG, Samsung, Motorola and others, provided that recovery is available in this device)

Adb Run Program - Method 1

By using corporate program Adb Run site (don't forget to enable USB Debugging)


Working window ADB RUN

From the command line - Method 2

Another option is how to get to the Recovery menu using standard ADB funds and ADB programs RUN:

Connect Android to PC and type the command adb reboot recovery

Example in ADB RUN:

From the command line - Method 3

As practice shows, on some devices (and more specifically in LG), it is impossible to translate an Android device using the command adb reboot recovery , in this case, you should use the following command

adb shell

reboot recovery

There is also a command to switch to Recovery mode for LG, you need to enter the command

adb reboot --bnr_recovery

After that, the device will start to reboot in a few seconds!

A universal method from an installed terminal with Root rights

(Asus, HTC, Lenovo, Sony, HTC, LG, Samsung and others, provided that recovery is available in this device)

  1. Download and install from Google store Play app Terminal;
  2. Go to the newly installed application;
  3. Type the following commands:
    su
    reboot recovery
  4. After a couple of seconds, Android will start to reboot.

Recovery menu controls

Volume keys Up and down- move through the menu Key On off- selection of an item in the menu. There are some Android devices in which no keyvolume, in this case you will need OTG cable and computer mouse... Once you start putting Android into Recovery mode, plug in your mouse.

This concludes the article. If you do not know how to use and what items in Recovery are responsible for, then read the article

  • If there were errors while installing the update - Status CWM

That's all! Nothing complicated! Read more different articles and instructions in the section. Stay with the site, it will be even more interesting further!

Recovery mode (aka recovery) on Android is a special hidden menu and is available on any smartphone Samsung Galaxy... It is a great tool that can be used to erase data, factory reset, format system partition, installing 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. Here's how to download 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.
After you release the buttons, you will already see the main menu of the recovery mode. Here you can set desired parameters settings or perform important actions with the system, including installing custom or other stock firmware.

To upload to normal mode you need to go back to main screen recovery mode and select "Reboot system".

06.08.2018

How to enter Recovery? Many Android upgrade and firmware instructions require you to perform actions from the Recovery menu. What this mode is and what it is for, you will learn from this article. What is Recovery? Recovery is a special Android boot mode in which:

  • perform a full Android data reset
  • flashing a smartphone
  • get Root rights

How to enter Recovery? The Recovery menu is usually found in all Samsung smartphones and tablets, but absent in other brands of Android smartphones, but it can be easily added by flashing this section to your Android device.

Connect Android to PC and type the command adb reboot recovery

Example in ADB RUN:

From the command line - Method 3

As practice shows, on some devices (and more specifically in LG), it is impossible to translate an Android device using the command adb reboot recovery , in this case it is worth using the following command

adb shell

reboot recovery

There is also a command to switch to Recovery mode for LG, you need to enter the command

adb reboot --bnr_recovery

After that, the device will start to reboot in a few seconds!

A universal method from an installed terminal with Root rights

(Asus, HTC, Lenovo, Sony, HTC, LG, Samsung and others, provided that recovery is available in this device)

  1. Download and install the Terminal application from the Google Play store;
  2. Go to the newly installed application;
  3. Type the following commands:
    su
    reboot recovery
  4. After a couple of seconds, Android will start to reboot.

Recovery menu controls

Volume keys Up and down- move through the menu Key On off- selection of an item in the menu. There are some Android devices in which no keyvolume, in this case you will need OTG cable and a computer mouse. Once you start putting Android into Recovery mode, plug in your mouse.

This concludes the article. If you do not know how to use and what items in Recovery are responsible for, then read the article

  • If there were errors while installing the update - Status CWM

That's all! Nothing complicated! Read more different articles and instructions in the section. Stay with the site, it will be even more interesting further!

The Recovery menu is a special service mode mobile system Android. Present on all smartphones and tablets. It is used to start if the user wants to quickly clear all information in the device, restore factory settings, change the firmware, and also in some other situations.

In the event that Recovery on the device has never been changed, it is called STOCK. If this menu has been stitched, then it is already called CUSTOM.

Among custom recovery the most popular due to their functionality are CWM and TWRP.

To enter the recovery menu on a switched off device, a special combination is used pressing HOME, POWER, VOLUME + and VOLUME-. In this case, on different devices, you need to use different of these buttons.

Below in the article you can find a way for your device. By the way, there are also special programs for launching this menu. One of the most convenient, called Quick Boot, we will consider here.

A universal way to enter recovery on Android

Nowadays, the same key combination is suitable for many models from different manufacturers. Therefore, it makes sense to consider this method first. Perhaps it can be called a universal way.

The procedure is as follows:

  1. Turn off your Android smartphone or tablet.
  2. Press the power button and then short press the volume up knob.
  3. The device will go to Recovery.
  1. With the device turned on, hold down the on / off button for a few seconds.
  2. A menu with some parameters will be displayed on the screen, where there may be a "Go to Recovery" button or something like that.

If on your Android these key combinations do not lead to desired result, then see below for all possible combinations specifically for each popular line of devices. For all other devices, one of the above described universal options is suitable.

Recovery for Samsung

If you have a popular device Galaxy line Samsung Electronics, then one of the following ways. Keep in mind that all key combinations apply when your smartphone or tablet is turned off.

Recovery for Sony Xperia

If you are the owner of a Sony Xperia line device, then turn off the device, and then turn on and When the indicator lights up or the SONY logo appears on the screen, press the Volume Down or Volume Up key. On some models, the logo is pressed.

This option is also possible: turn off the device, hold down the power button and wait for a few vibrations, then release the ON / OFF button and quickly hold down "Volume +".

Recovery for HTC

First of all, the user needs to switch to Bootloader mode. In most cases, this is done by removing and reinstalling the battery:


Recovery on Nexus

With the device turned off, hold down the following key combination: volume down and on / off (power).

Now find the Recovery item and go to it by pressing the power button.

We go into recovery using the Quick Boot application

There are also special programs that help you go to Recovery with one touch of your finger. The procedure in this case is not at all complicated. Just open the Play Store, search for the application and install it. I decided to introduce you to one of the most convenient ones called Quick Boot.

After installation and launch, select the Recovery item in the program menu.

The device will successfully reboot into the mode Recovery Recovery, and you can continue working with the sections that you need, depending on the task at hand. For example, if you need to restore all factory settings on your device, you will work with the section Wipe data (Factory reset), the Apply section is used to update the firmware update from, etc.

How to work in the recovery menu

Navigation here is done by pressing the side volume up and down keys. To confirm the selected option, the on / off button is briefly pressed.

Tip: if you are not confident in your actions, it is better not to experiment in this menu, since the consequences will be irreversible. Android mobile devices, unlike PCs, will not issue warnings about possible problems.

What's on the Recovery menu

This menu contains the following sections:

  1. Reboot system. When you click on this item, the Android will restart in normal mode. In case you just entered Recovery out of curiosity, use this command to exit.
  2. Apply update from. This section is used to update the installed firmware from the existing distribution kit, install patches, etc. this section you can select the type of update from the following list:
    1) Internal storage - from an existing option, including from system memory, file storage, memory cards;
    2) External storage- from some external device;
    3) Cache - from the internal system cache.
  3. Backup / Restore. Each device stores backup image systems. When you click on this item, recovery from this image will be launched. That is, the system will be completely updated to the state in which it was after the purchase.
  4. Wipe cache partition... The contents of the system cache will be completely deleted.
  5. Wipe data | Factory reset. Choice of this paragraph allow to reset all settings made by the user for the entire period of operation. The device will completely revert to the factory preset settings. Please note that during the reset process, all information entered and saved by the user will be lost. Including all files, folders, music, videos, etc. However, the performance of the tablet usually increases by an order of magnitude after a factory reset.

Once again, let's talk about the Recovery menu, since almost always instructions for firmware and Android upgrades provide for the execution of certain actions from the Recovery menu.

What is Recovery?

Recovery (recovery) or translated from English - Recovery Mode is special treatment boot a device with which you can restore the system or install updates. it emergency mode required to restore the working state mobile device in the event of program failures, the result of which was the disconnection of the device and the impossibility of loading it in normal mode.


Using the Recovery mode, you can:

  1. Restart your tablet or smartphone.
  2. Reset the settings.
  3. Install updates.
  4. Configure and install firmware.
  5. Get Root rights.
  6. Delete your personal data in the system.
  7. Recover your operating system and more.

Remember that incorrect actions can harm the system. If your tablet contains important information, it is better to save it to another device in advance.

Read the instructions carefully before using the recovery mode. Each tablet service menu different from others, therefore, in the question of how to enter the Recovery menu on a tablet, an individual approach is required.

How to enter Recovery?

The Recovery mode in each mobile device is visually different, but the login process is almost always carried out according to the same principle. In order to enter the Recovery system, you need to do a number of actions:

1. Turn off your tablet. When doing this, make sure that the battery is fully charged or connect the tablet to the mains.

2. Enter Recovery mode by pressing a combination of some buttons. As different tablet manufacturers offer different combinations"Hot keys" we will give a few of the most common key combinations for entering the recovery menu.

The main key combinations for entering Recovery:

  • simultaneously holding down both the "volume" keys and the "power on" key;
  • simultaneously holding down one of the "volume" keys and the "power on" key;
  • simultaneously hold down one of the volume buttons, the Home button and turning on the device.

The buttons are held until the recovery mode appears on the display.

Some Chinese devices do not have a Recovery mode. In this case, you will have to reflash the tablet.

How to navigate the Recovery menu?

Most devices provide navigation through the menu items using the volume buttons. The power button serves as a selection of the desired menu item. Some devices may use other keys as well.

If the control is touch-based, then we move through the points and select desired item by pressing with your finger.

How to enter Recovery if there are no volume keys on the tablet?

If your tablet does not have volume keys, follow these tips:

1. You can try to enter desired mode while holding down the power and home buttons at the same time. Another option is to hold down the Home key, press the power button, and release the Home key. After the splash screen appears, press the Home button again.

2. You can navigate the menu by connecting USB keyboard via OTG cable or using a sensor.

As you know, the Android operating system provides the user with huge functionality, using which he can realize the full potential of his smartphone. Starting from advanced settings using the engineering menu and ending with a complete factory reset using Android System Recovery 3e. What to do in this menu with a smartphone, you will learn from this article.

This setting mode was designed to work with system files and system parameters. With it, you can activate or block almost all functions of your Android device. Here you can carry out such complex manipulations as complete cleaning or system restore in just a couple of clicks. Due to the fact that this menu plays important role, getting into it is not so easy, but more on that below. In order not to harm your device, you need to know the points of the mode, their meaning in Android System Recovery 3e and what to do to carry out certain actions.

Launch Android System Recovery 3e

As mentioned above, launching this menu is not easy. To get here:

  1. Turn off the gadget;
  2. At the same time, we hold down the volume rocker, the Home button and the power key.

After a few seconds, the Android logo will appear on the screen, and then the Android System Recovery 3e menu will launch. What to do in it, and what menu items mean - we'll talk about this further.

Assigning items in the mode

The very first and most important point- Reboot. It allows the user to restart the device.
To use the memory card of your device as external storage connected via USB, select Toggle USB strage.
There is also work with the CWM package. It is used to install native Recovery on the device.

Selecting "Instal from sdcard" ( CWM installation from a memory card), you will find yourself in a subsection with the points:

  1. Installation CWM Recovery preloaded on the memory card - Choose zip from sdcard;
  2. Check md5sum - Check md5sum a file;
  3. Find out the signature of the CWM package - Toggle Signature Verification;
  4. You can check CWM for compatibility with the device by clicking on Toggle Sclipt Assert.

How to use for flashing Android mode System Recovery 3e, what to do on Lenovo or other gadgets? Use only proven features that you know about!

  1. Reset all smartphone data - Wipe data / factory reset;
  2. Wipe Cache allows you to completely clear the cache;
  3. Wipe dalvik cache used for cleaning Dalvik-KESH;
  4. Use Wipe battery stat to clear battery usage history;
  5. Format System completely removes all system files;
  6. Format Date formats the data section;
  7. Format cache deletes cache data, but the files themselves remain in it;
  8. Cache kernel data clearing - Format boot;
  9. To completely format your device, use Wipe all partitions.

By the way, how to use Android System Recovery 3e, what if the tablet is your device? All the values ​​of the menu items that we are talking about are completely identical for all gadgets under Android.

  1. The next section is one of the most important. Backup / Restore is responsible for backing up and restoring data. It contains points:
  2. Backup creates a backup copy of the data;
  3. Restore is used to restore the factory firmware;
  4. Advance Restore is used to restore individual data partitions;
  5. Advanced Backup can be used to copy partitions.

The next item is responsible for converting formats to Android System Recovery 3e, what should I do in this menu? Here you can choose different kinds converting to EXT4 and EXT3. Here's what this section allows you to do:

  1. Convert / change a backup converts the device system;
  2. Use Convert Data to convert data;
  3. Change one of you backup is used to translate backup sections;
  4. Convert Cache converts the cache;
  5. Wipe data / factory reset is used to convert all partitions;
  6. System - format system on the contrary - format data; cache - format cache.

Extra menu


In the Advanced section, you can perform the following actions using the following commands:

  1. File System Check checks the validation of system files;
  2. Print Partition Info displays log information on the display;
  3. Copy recovery.log to sdcard is used to save copies of the recovery log;
  4. Opening ext and ext2 formats on an SD memory card - Partition SD Card;
  5. No - save my fat32 partition! terminates partitions;
  6. Use Fix Permission to fix permissions in / data / data.

And finally, the last item on the Power Menu. It is used for power management:

  1. Reboot Recovery reboots;
  2. In Bootloader mode, use Reboot into Bootloader;
  3. A simple reboot is done using Reboot;
  4. Power Off - normal shutdown.

Thus, with the help of this menu it is possible to carry out great amount functions that are not available in visual settings... If you have any questions, you can always ask them in the comments!

Android System Recovery 3e is one of the mobile functions, which is appreciated by device users. The main purpose of the specialized Android tools System Recovery 3e is a device file cleaning and recovery. Carefully studying everything available opportunities this function, you can make sure that its demand is fully justified.

Brief description of Android System Recovery 3e

Activation special regime settings assumes a quick and successful solution to the task. So, you need to turn off the smartphone, then hold down the keys to adjust the sound, the Home button, and the on / off button. Only after the user holds three buttons at the same time a little, it will be possible to see a special menu.

System Recovery is a varied menu that is ideal for solving any existing issues. Mobile phone users will be able to successfully progress on all points, knowing what meanings they have. In each case, a special approach to solving existing problems is assumed:

  • Check md5sum a file - check the md5sum file;
  • Toggle Signature Verification - verifies the signature of the CWM package;
  • Toggle Sclipt Assert - check the package for compatibility with a mobile phone.
  • System Recovery allows you not only to successfully recover a mobile device, but also to use additional available functions.

    What features does System Recovery have?

    Thinking about what android system recovery 3e is, what to do you need to understand, so it is advisable to carefully study everything available functions and ensure the optimal functionality of the Recovery system.

    1. Install - installation, kernels, system utilities using special file... It is supposed to use zip-archives with a special structure and utility.
    2. Backup / restore is one of the most important components to create a backup by the operating system. It should be noted that full backups are recommended.
    3. Wipe / format - cleaning and formatting the segments of the used internal memory. Most often, a simple wipe is sufficient, but formatting is rarely used.
    4. Mount - mount different partitions mobile phone... This is required during installation new modification operating system.

    Carefully studying the capabilities of the Android operating system, it can be noted high level functionality and feasibility of having System Recovery.

    The FBI tried to twist its arms through the court Apple who doesn't want to write code to bypass their own security systems. A critical vulnerability has been discovered in the Android kernel that allows superuser access bypassing all security mechanisms. These two events, although not related to each other, coincided in time, clearly demonstrating the differences in the security system of the two popular mobile operating systems. Let's postpone the question with critical vulnerability android kernels, which is unlikely to ever be fixed by most manufacturers in already released models, and consider the data encryption mechanisms in Android and Apple iOS... But first, let's talk about why encryption is needed in mobile devices at all.

    Why encrypt your phone?

    An honest person has nothing to hide - the most popular leitmotif that sounds after every publication on the topic of data protection. “I have nothing to hide,” say many users. Alas, but much more often this means just the certainty that no one will bother to get into the data of a particular Vasya Pupkin, because who is interested in them at all? Practice shows that this is not the case. We will not go far: literally last week, the career of a school teacher who left her phone on the table for a moment ended with dismissal. The students instantly unlocked the device and extracted from it photographs of the teacher in a form that is condemned by the puritanical morality of American society. The incident served as a sufficient reason for the dismissal of the teacher. Stories like this happen almost every day.

    How unencrypted phones are hacked

    Let's not go into details, just keep in mind: data from an unencrypted phone can be retrieved in almost a hundred percent of cases. “Almost” here rather refers to cases where the phone was physically damaged or destroyed just before the data was removed. In many Android devices and Windows Phone there is a service mode that allows you to merge all data from the device's memory via a regular USB cable. This applies to most devices on the Qualcomm platform (HS-USB mode, working even when the bootloader is locked), on Chinese smartphones with MediaTek processors(MTK), Spreadtrum and Allwinner (if the bootloader is unlocked), as well as all smartphones manufactured by LG (there is generally a convenient service mode that allows you to merge data even from a "ripped" device).

    But even if the phone does not have a service "back door", data from the device can still be obtained by disassembling the device and connecting to the JTAG test port. In the most advanced cases, an eMMC chip is removed from the device, which is inserted into the simplest and very cheap adapter and works according to the same protocol as the most regular SD card... If the data has not been encrypted, everything is easily extracted from the phone, right down to the authentication tokens that provide access to your cloud storage.

    What if encryption was turned on? In older versions of Android (up to 4.4 inclusive), this could be bypassed (with the exception, however, of devices made by Samsung). But in Android 5.0, the strong encryption mode finally appeared. But is it as useful as Google thinks it is? Let's try to figure it out.

    Android 5.0-6.0

    The first device running Android 5.0 was Google nexus 6, released in 2014 by Motorola... At that time, 64-bit mobile processors with ARMv8 architecture, but Qualcomm did not have ready-made solution on this platform. As a result, the Nexus 6 used the set system logic Snapdragon 805 based on 32-bit cores self-developed Qualcomm.

    Why is it important? The fact is that processors based on the ARMv8 architecture have a built-in set of instructions to accelerate streaming data encryption, while 32-bit ARMv7 processors do not have such instructions.

    So watch your hands. There are no instructions for accelerating crypto in the processor, so Qualcomm has built a dedicated hardware module into the system logic set, designed to perform the same functions. But something went wrong with Google. Either the drivers were not finished at the time of release, or Qualcomm did not provide source codes(or did not allow them to be published on the AOSP). The details are unknown to the public, but the result is known: Nexus 6 shocked reviewers extremely slow speed reading data. How slow is it? Something like this:

    The reason for the eightfold lag behind " younger brother», Smartphone Motorola moto X 2014 is simple: forcibly enabled encryption implemented by the company at the software level. V real life Nexus 6 users on the original firmware version complained about numerous lags and freezes, noticeable heating of the device and relatively weak autonomy. Installing a kernel that disables forcibly activated encryption solved these problems at once.

    However, the firmware is such a thing, after all, you can finish it, right? Especially if you are Google, have unlimited finances and have the most skilled developers on staff. Well, let's see what happened next.

    And then there was Android 5.1 (six months later), in which required drivers to work with a hardware accelerator, first added to preliminary version firmware, and then removed again in the final due to serious problems with the sleep mode. Then there was Android 6.0, at the time of the release of which users had already lost interest in this game and began to disable encryption by any means, using third-party kernels. Or do not disable it if the read speed of 25-30 MB / s is sufficient.

    Android 7.0

    Okay, but Android 7 could fix a serious problem flagship device who is almost two years old? You can, and it was fixed! Elcomsoft labs compared the performance of two identical Nexus 6s, one of which was running Android 6.0.1 with the ElementalX kernel (and encryption disabled), while the other was running the first preliminary Android version 7 with default settings (encryption enabled). The result is obvious:

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