How to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

How to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

This post helps to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own. This post describes the way to handle two common problems for the Galaxy S7

  • failure to boot up normally
  • random reboot issue

With Samsung Galaxy S7 device now approaching its mid-life crisis, which is approximately about 2 years from date of release, some users will encounter boot- or power-related issues with it.
Below are two case studies related with this issue:

Case Study 1:

 

Galaxy S7 edge won’t boot to Recovery Mode
The device is at least 70% charged and it turned off suddenly. When the user try to turn it ON, it won’t. The user even try to charge it but won’t give any signal. At first soft reset (Power button and Volume Down) it gives a signal, started to charge, the Samsung logo appeared and it seems that everything is ok, but the logo remains on the screen without any further reaction. Nothing happens, if user try to do Hard Set. The only thing that appears is the Samsung Galaxy S7 Edge logo. If the user try Power Button+Volume Down+Home Button and a page writing: Warning! and indicate to Download a Custom OS. It shows two options:
1. to download Custom OS
2.to restart the phone
If the user select any one of these two, the logo will appear and it won’t display anything .

Solution:

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

To boot your phone to Recovery Mode successfully (so you can do a master/factory reset), make sure that the phone is turned OFF . This is important. Pressing Power, Volume Up, and Home buttons while the phone is ON won’t do anything. If you can’t turn the phone off normally via the Power button, let the battery drain out first so the device turns OFF by itself. Once it’s off, charge the phone for at least 30 minutes to one hour before attempting to boot it back to Recovery Mode.
If the phone still refuses to start in Recovery Mode, it can be an indication of a corrupted bootloader. Try reflashing the bootloader to see if it work. Otherwise, send the device to Samsung Service Center.

Reflash Bootloader

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own



To reflash a bootloader, below are the general steps . Exact steps may be slightly different for your particular phone model so be sure to view other guides.
Look for the correct firmware for your phone model and download it. Make sure that you select the right one. It should be the same firmware that ran previously on your device. Note down the firmware version to remove the chance to pick the wrong one in future. Using an incorrect firmware can cause complications so follow these steps.
Let’s now say that you have identified the correct firmware. You then want to download it to your computer. The firmware file should have a bunch of files in it like AP_, BL_, CSC_, etc.
Look for the file that starts with a label BL; this should be the corresponding bootloader file for this firmware. Once you’ve identified the bootloader file, copy it to your computer’s desktop or to any other folder.
Proceed with the rest of the flashing procedure using the Odin program.
In Odin, click on the BL tab and make sure to use the bootloader file you’ve identified earlier.
Now, make sure that the “Device Added” status and its “ID:COM box” has turned blue before hitting the START button. This will initiate the flashing of your phone’s bootloader.
Restart the phone once the procedure is finished.

Case Study 2: Galaxy S7 keeps restarting on its own

Sometimes the phone began suddenly to restart on its own, and sometimes it would hang with a little garbage on the screen and then restart. it would not respond to anything at all until the battery drained out and then only allow restart.
Sometimes after disconnecting the battery and then connecting it again, Galaxy S7 restart.

Solution:

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its ownAn issue like this is never simple. There’s no easy way to check the entire software log to see where the possible process or service failure or malfunction occur. Unless you have Samsung’s factory level diagnostic tools. Second, the symptoms are generic and can be caused by a number of possible issues and not just by bad software.
To check, only two steps are applicable
observing the phone to safe mode
factory reset.

Restart your phone to safe mode

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

Booting the phone to safe mode can help if the main reason is a bad third party app. While in safe mode, third party apps and services are disable. To notice the difference, let the phone run in safe mode for at least 24 hours. If it works normally without the mentioned symptoms, uninstall third party apps until the issue is resolve.

It is possible in some cases that Samsung Galaxy S7 Edge stuck during boot up process. As you install an update the problem is appearing with your Phone. That is after using your device for few days, the error occurred. But in every case, to fix the problem the safest thing is to restart your phone in safe mode. 

In this mode, the device will run with only pre-installed apps at default settings and built in services running in the background. In other words all third parties will be temporarily disabled.

Diagnostic state is the other term used for safe mode where one can immediately know if the problem is with pre-installed apps,firmware or downloaded apps.

If still you are unable to fix the issue, then it is either a problem with the pre-installed app or the firmware itself. Otherwise you should find out which third- party app is actually causing the problem.So, uninstall it to resolve the error. 

STEPS:

Following are the steps  to run Samsung Galaxy S7 Edge in Safe Mode:

  • Press and hold the Power button . As you see “Samsung Galaxy S7 EDGE” appear on the screen, release the Power Key.
  • Hold immediately the Volume Down Key.
  • Continue holding the Volume Down Button until the device finishes rebooting.
  • Release it, when you see “Safe Maode” in the bottom left corner of the screen.

 

This picture shows Safe Mode Galaxy S7 edge won’t boot to Recovery Mode and keeps restarting on its own

The purpose of Safe Mode is actually to find out that your device can boot up successfully. And if so, then boot it in Normal Mode. And if it does not make any difference, boot it in Safe Mode again, and at this stage find bad apps that are causing  error.

Return all software settings to their defaults

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

Another good way to determine whether or not the cause of your problem is software-related is by doing a factory reset. It’s really a must do in this situation so if there’s no change when your device is in safe mode, factory reset is the next logical troubleshooting step. It’s a drastic troubleshooting step and requires some effort. Be sure to create a backup of your files before doing it.

STEPS:

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

Turn off your Samsung Galaxy S7.
Press and then hold the Home and Volume UP keys, then press and hold the Power key.
When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
Once highlighted, you may press the Power key to select it.
Now highlight the option Yes — delete all user data using the Volume Down key and press the Power button to select it.
Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
The phone will now reboot longer than usual.
Just like in safe mode, make sure to let the phone run for 24 hours without any apps after a factory reset. This way, you can notice if there’s any difference in performance, and whether or not the issue persists when all software are running their known, working state.

Beware of apps

to fix Galaxy S7 edge that won’t boot to Recovery Mode and keeps restarting on its own

 

If your phone works fine after a factory reset (when there are no third party apps) but reverts to its problematic state after restoring apps, that’s a hint that one of the contents is affecting the battery and/or the general performance of the device. So filter all apps and install only known, working ones. Some apps may look legit but can simply be front for malicious or less legit operations, such as stealing personal information, spreading malware, etc.

 



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