The fact that the phone is lenovo, nokia, lg, xiaomi, samsung galaxy, sony xperia, meizu, alcatel, zte blade, fly, huawei, dexp, phillips, lumia, prestige, htc, micromax, asus, bq, texet and any other constantly, sometimes or periodically, the problem is not new.
There are several reasons, because the phone can turn off spontaneously in different situations: when you turn on, when you call, when charging, when watching a video, during a call, after a call, when you turn on the Internet, in sleep mode, on the screen saver, when you flash, when you just call, when you lock the screen, when taking pictures, in games, when turning on the camera, when you insert a SIM card, you go to the Internet, after replacing the battery, when you insert a flash drive, and all this for no apparent reason.
Moreover, this can happen when fully charged- at 100 percent, 60 percent, 50 percent battery, 40 percent, 30 percent, 20 percent battery, 15 or 10.
The whole difficulty is that there is no universal recipe for what to do to solve the problem if a charged android phone suddenly starts to turn off just like that on its own - there is a need for an integrated approach and often you cannot do without going to the service.
Let's take a look at some options on how to keep the phone from turning off. There are three main reasons why the phone turns off spontaneously: in the battery, in software and hardware damage.
The first reason why the phone turns off is hardware malfunction
Problems in the hardware most often occur in the places of contacts - these are the battery, SIM card, keys, detachable connection of the screen with the circuit board.
Sometimes this can happen due to overheating of the processor, but then a specialist is needed, and we will consider the terminals battery... Oxidation often occurs there.
Especially if there was contact with water - for example, you kept your phone in your pocket and walked in the rain. What can be done? Remove the battery and clean all battery terminals and connectors on the phone.
Do not use sandpaper (it will get worse over time), but wrap cotton wool dipped in pure alcohol or contact cleaner (you can buy it in the store
In addition to cleaning, bend the hold-down contacts slightly so that they press firmly against the battery terminals.
If the battery is non-removable, then you do not need to disassemble the phone - it is soldered there and only you can cause the device even more harm.
The second reason why the phone turns off immediately after switching on is software errors
Highly efficient way to solve such a problem is to manually flush the android - not through a standard update.
Only this method will not solve the problem if you got in with root access to preinstalled apps, operating system or remove system files.
Then only installing a licensed Android OS will help. At the very beginning, I recommend doing, or even better hard reset called hard reset.
This procedure in most cases fixes the problem where the phone turns off by itself. I will not describe the process now - you can find it on this site in the android section or through the search.
Other reasons why the mobile phone turns off although there is charging
If it gets hot on and off, even new phone or new battery with a charged battery, this is most likely a factory defect - there is no point in describing what to do (the new one is under warranty and I do not recommend muddling with it).
If it hangs and turns off, then the problem is most often in the flash memory - it needs to be changed (it costs about $ 40 on average)
If it glitches and turns off, then the matter may be in the processor - it cannot withstand the load (usually then it gets very hot).
It happens that the phone blinks, ripples or flickers and turns off. Then the reason is most often in the battery - it does not hold the required voltage (the charge level drops sharply).
Another reason may be a virus - most do not have a security function in the form antivirus software, and new viruses can bypass the built-in protection. You can check with a thorough scan. How to check .
Phone shutdown can be caused not only by the above factors. One of the worst and most expensive reasons for board damage is when there are no options other than replacement.
In conclusion, I will just say a lot of reasons, like phones: Lenovo, Sony Xperia, samsung galaxy, nokia, sony, meizu, xiaomi, micromax, lji, asus zenfon, fly, dexp, asus, lumiya, and so on, and if we take the exact name, then as I noticed, androids maize m3 s, samsung a3 are most susceptible to this, lenovo a319, samsung gt c3520, lg g2, fs518, xiaomi mi 4c, huavei p9, siemens cx 70, huawei cun 129. Success.
Lenovo Phone A319 is one of best options for lovers budget gadgets... The manufacturer has a good reputation, and the smartphone itself is quite inexpensive. Nevertheless, no matter how reliable the device is, one day you may face technical problems.
Many are worried about the question: what to do if the A319 does not turn on? And what if Lenovo A319 does not turn on and hangs on the screensaver? Many users of this gadget have encountered this problem. Since it is very common, we suggest that you familiarize yourself with the main options for its solution.
Option number 1. Reboot
We are all accustomed to the fact that if some technique does not work, then it needs to be rebooted. And it is not at all necessary to find out why exactly it does not start or starts to turn on, but does not load to the end. There are reasons for failures great amount, and even specialists cannot always name the problem that you are faced with in a particular case.
So if Lenovo A319 won't boot or freeze when turned on, the best and easiest way to resolve the issue is to restart your phone.
Have you tried restarting your device but it doesn't work? Then repeat it five more times. Getting the system to boot normally is not easy, but multiple reboots are successful in the vast majority of cases.
You can also try simultaneously holding down the Home button, as well as the power and volume keys. Some Lenovo models, including the A 319, respond to such an impact and stop hanging.
The main advantage of these methods for solving the problem is the absence of any risk to the phone and the data stored on it. This is their main difference from the methods of bringing the phone back to life, which we will look at next.
Option number 2. Hard reset
If an elementary reboot did not help, and all the same Lenovo a319 does not turn on or does not load beyond the splash screen, you need to resort to more radical measures. The best option- reset all settings, or, in other words, Hard reset phone. It is quite simple to do this - you just need to go into Recovery mode.
To make it easier for you to complete this procedure, we offer a simple algorithm:
- Turn off the phone by holding down the power key for 10-15 seconds.
- We simultaneously hold down the power and volume down keys. You can do this with one hand, but we recommend using both. There have been cases when, through negligence, people dropped the device, trying to press both buttons with the fingers of one hand.
- We are waiting for the manufacturer's logo to appear, and after a few seconds we get into the Recovery mode.
- Operating with the volume down and volume up buttons, select the item " Wipe Data". It involves deleting all data and settings from the phone. Thus, whatever the software problem most likely you will fix it.
- The system will ask you if you really agree to the deletion of all data. Confirm the action and wait about a minute. Next, you agree to reboot the device and wait for the updated software to download.
If all systems start up normally and the phone functions the same as it did before the problems occurred, then congratulations - you have found a relatively simple and painless way to resolve the issue. If the phone still does not turn on, or the download does not go beyond the screensaver, it remains to resort to the third method.
Option number 3. Flashing
The third method is the most radical, but you should definitely use it if the phone suddenly turns off, does not turn on, or freezes. We act according to a simple logic - if the system cannot be restored, then it should be replaced. In the case of computers and laptops, we usually reinstall the operating system, and for phones, a firmware update works.
First, download the firmware to your computer, and then drop it onto the memory card installed in the phone. The firmware downloads as an archive, and you do not need to extract files from it. We throw it on the card in this form.
Now we go to Recovery in exactly the same way as in the previous case, that is, holding down the power and volume buttons. If the memory card has setup files, then the system will recognize them by offering you the following item: install zip from sdcard. This is exactly what is needed if the phone turns off and we need to change the firmware. We confirm the actions by starting the file upload.
Flashing usually takes a few minutes. Do not be alarmed if the phone goes off during it - this is quite normal. It can reboot, and repeatedly. And this is not a cause for concern.
After several reboots, the system will turn on, and, most likely, you will no longer see freezes and brakes. This means that the problem is a thing of the past, and now you know how to turn on a phone that has started to slow down or does not turn on.
If your phone does not turn on, it can make any user nervous, but in any case, before carrying the device to service center, you can try to provide first aid to resuscitate your smartphone. Problems due to which the phone does not turn on can be software-related, for example, a problem with the firmware due to unsuccessful update, and hardware, for example, due to a failed battery.
Below we've tried to put together a lot of tips to help you figure out why your phone won't turn on. If none of the tips helped you, please describe your problem in the comments.
The phone does not turn on after repair.
If you decide to disassemble the phone yourself, and after assembly it does not turn on, then the problem may be that you simply forgot to connect the power to the motherboard of your device. You must take it apart again and make sure the battery power circuit is up to motherboard not broken and all loops are in place. If you have a multimeter, try checking the voltage on the battery, or after assembling the phone, try putting it on charge. Almost all phones notify about the start of charging, even if the device is turned off.
What to do if water gets into the smartphone
Let's take a look at the hardware reasons why the smartphone won't turn on.
Falling into water could be one of the reasons. What to do if the phone falls into the water? First, remove the battery, you need to do this as quickly as possible, then dry your smartphone with a hairdryer. Control the air, it must not be hot, otherwise touch glass and some other components will simply begin to peel off. Then, without inserting the battery into the smartphone, put it in a warm place. It is worth noting that you have not many chances of salvation and, perhaps, you will not do without losses. In particular, the buttons on the device may stop working. If you dry your smartphone, but it does not turn on, it needs repair at a service center. The worst thing that can be is the replacement of the motherboard, which,
by the way,
stands like the smartphone itself.
The smartphone does not turn on after being completely discharged.
This problem is observed in some modern smartphones... In particular in Sony phones... Some Sony phones had such a feature that they cannot be turned on after complete discharge if the phone has been in this condition for a long time. One thing helps - long charge battery with a current of 2A. And these are almost all chargers.
In any case, as I wrote above, you need to put your smartphone on charge for several hours. Usually the problem goes away on its own. You can also try Charger with a higher amperage, for example, 1.5 or 2 Amperes.
Also try to make your smart phone.
Check the battery. The phone may not turn on due to a defective battery.
it required condition... If you have removable battery and there is an opportunity to put another one - do it. Sometimes, though not often, the problem that keeps your smartphone from turning on may be in the battery. By the way, is your battery fully charged? Maybe this is the case?
On some phones, especially if the phone is several years old, the actual battery charge may not match what your phone is showing. If your phone won't turn on, try charging it for a few hours. It is possible that the battery will charge and the phone will turn on.
The battery breaks down very quickly. Many manufacturers mobile phones give the device itself a one-year warranty, and half a year for the battery. The reason for the failure of the battery is quite simple - very heavy load on him. We charge the phone constantly, and as you know, batteries lose their charge with each charge-discharge cycle. So, for example, the standard lithium ion batteries installed in our phones work properly under load no more than two and a half years.
Check the charger.
If your smartphone is discharged and it does not turn on anymore, can it be charging? Try charging your device using a computer. If the phone shows no signs of life within half an hour, the problem is not with the charger. If the phone seems to be charging, but cannot be charged, check the charger on another phone. It is possible that it will need to be replaced with a new one.
The phone does not turn on after being dropped. Mechanical damage.
Smartphone manufacturers like to say that their phones cannot be scratched, drowned, or smashed. Manufacturers give their phones protective screens Gorilla Glass, IP67 level waterproof, shockproof housing and so on. Despite all the phone protection measures taken by the companies, it often happens that the phone does not turn on after being dropped. For example, on asphalt or falling into water. Unfortunately, all that can be done at home after a fall is to see if the battery, power cable or display cable has come off, in case there is a sound and vibration signal for switching on.
Do something more with dropped phone at home is unlikely to work. To do this, you need to check the voltage on the battery and on the system board. If the phone fell and does not turn on, while at home necessary tools no, you will have to take the phone to a service center.
After flashing, the phone does not turn on.
One of the most common reasons a phone might not turn on is because of the wrong installed firmware or update. Phone won't turn on after firmware or update because of incorrect installation files. In this case, you will need to flash your phone. For example, if yours does not turn on Samsung phone, then you need to download the firmware from the official Samsung website and the Odin flasher. With this program you can flash your phone. You will delete all settings and files on internal memory, but there is a possibility that the phone will turn on.
If Lenovo phone won't turn on, then in this case you will need to enter Recovery mode by simultaneously holding down the power key and volume up. In the Recovery menu, you will need to select the wipe data / factory reset menu item, and then Yes - delete all user data... Unfortunately, different phones go to Recovery menu can be done in different ways. If you are sure you installed official firmware or official update, then contact the manufacturer's authorized service center, they will restore the firmware.
But we recommend that you try perform a Hard Reset by resetting your phone to factory settings. It often helps if the phone won't turn on. Below we have selected key combinations for popular phones.
Samsung phone won't turn on: simultaneously hold down the volume rocker up, the center menu button and the power button.
LG phone won't turn on: Hold down the power button and the volume rocker at the same time, then select wipe data / factory reset.
Does not turn on Huawei phone : Hold down the volume up key and the power button at the same time. You can try pressing the home button, the volume up key, and the power button.
If your phone does not turn on after flashing another phone, write accurate model in comments. We will try to help you.
The phone turns on and turns off immediately, what to do.
It often happens that after updating or installing a program, your phone turns on and off immediately. Usually it looks like this: the phone turns on, a logo appears, boots up and the phone goes into an eternal reboot or turns off. There can be a lot of problems here, from firmware to battery. If you have a problem with your phone after flashing or updating the device, then roll back to previous firmware or perform a factory reset. Will help.
Sometimes the phone turns off, even at the stage of loading the device. Consider your phone won't turn on and advice from previous paragraph... You must perform a HARD RESET or flash the device using a computer.
If you haven't updated the firmware, then the whole thing may be in the power button, which "jams" and turns off the phone. Unfortunately, this happens very often, especially if the phone is in the water. In almost all smartphones, the button is soldered to the motherboard and can be replaced.
If the phone turns off and turns off immediately after full load, when you see the desktop and icons, then try deleting the last installed programs, if, of course, there is enough time for it.
The phone may turn off immediately due to the battery. Check the battery cable and system board. Even if the smartphone has a "non-removable" battery, it is not so difficult to remove it. In any case, if you are sure that the problem is not in the firmware, then it will most likely be possible to find out exactly the problem that causes the phone to turn on and off immediately at the service center. Again, the problem is either in the firmware or in the power circuit.
These simple steps can help you with first aid if your smartphone does not turn on. If none of these points suit you, take the device to the store if it is under warranty or to a phone repair service center if there is no longer a warranty.
