Galaxy S6 can’t install update, restarts randomly after Android update, other issues

Android updates are sometimes headaches waiting to happen so our troubleshooting article today covers some #GalaxyS6 update problems. We hope our suggestions will help not just the users mentioned here but those that may have a similar experience. Most power- and update-related problems have similar solutions so be sure to consult our other previously posted articles if you can’t find any semblance to your own problem here.

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: Galaxy S6 can’t install Android update

Today my S6 started to update. It tries to install the update and states “Installing system update” but only gets to 31% and then the screen blacks out. The Samsung Galaxy S6 text appears and then it repeats by installing, getting to 31% etc. I can’t switch it off. I think the WiFi connection may have been lost during the download of the update. Please advise. — Omy

Solution: Hi Omy. Any form of interruption, be it a loss of internet connection or sudden power loss due to low battery level, can potentially brick a device being updated. If you think the update had been interrupted, you may need to do some drastic troubleshooting to bring the phone back to its normal function.

The first troubleshooting step that you want to do is to boot the phone to Recovery Mode and wipe the cache partition, which stores the system cache and downloaded installer files. If this won’t fix the problem though, make sure that you wipe the phone clean with factory reset. To boot your phone to Recovery Mode, do the following steps:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. You can either wipe the cache partition or do a factory reset when in this mode.

Should any of these options won’t fix the problem and the phone remains stuck in the installation page, the next good thing that you can try is to reflash the bootloader back to stock. This is especially helpful in cases wherein the phone fails to boot to normal mode at all. It’s also a prerequisite before you attempt to reflash the firmware.

Below are the steps on how to flash a Samsung Galaxy phone bootloader. Exact steps may be slightly different for your particular phone model so be sure to find other guides to give you a more accurate set of steps. Our guide below is only for demonstration purposes. And remember, flashing is a risky procedure. If not done correctly, you’ll most likely add more serious problems to the one you already have. Be sure to do more research about this topic before attempting anything.

  1. 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 exact firmware that ran previously on your device. We assume that you list down the firmware version somewhere. If you did not take note of it before, there’s a chance that you may pick the wrong one. As you may know now, using an incorrect firmware can cause complications so good luck with that.
  2. 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.
  3. 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 that you can easily access.
  4. Proceed with the rest of the flashing procedure using the Odin program.
  5. In Odin, click on the BL tab and make sure to use the bootloader file you’ve identified earlier.
  6. 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.
  7. Restart the phone once the procedure is finished.

Problem 2: Galaxy S6 restarts randomly after Android update

I HAVE SAMSUNG S6 G920F 32 GB CELL PHONE, PURCHASED FROM UK , NOW BEING USED IN PAKISTAN. I WAS OFFERED TO UPGRADE FROM MARSHMALLOW 6.0.1 TO ANDROID 7 NOUGAT, WHICH I DID. NOW MY CELL PHONE HAS FOLLOWING COMPLAINTS:

 

  • IT RESTARTS RANDOMLY
  • IT GETS HELD UP AT ANY TIME
  • IT HEATS UP TO 60C -70 C
  • IT DOES NOT APPEAR ON COMPUTER SCREEN, AFTER CONNECTING WITH CABLE THROUGH JACK

 

Please help to fix the problem. Regards. — GHAZANFER ALI SYED

Solution: Hi GHAZANFER. These are four possible solutions to this problem:

  1. wipe cache partition
  2. factory reset
  3. uninstall apps
  4. return to previous firmware version

Wipe the cache partition

As mentioned above, cache partition wipe may help by refreshing the contents of the partition, including corrupted installation files. It’s also a good step in fixing some post-update problems, especially those that involve the system cache. If you haven’t tried it yet, make sure that you do it. Here’s how:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Revert all software settings back to defaults

A master reset may be necessary to fix your problem as well. So, if a cache partition wipe won’t fix the problem at all, be sure to factory reset/ master reset the device to return all software settings back to their defaults. To master reset your device, follow these steps:

  1. Turn off your Samsung Galaxy S6 Edge.
  2. Press and hold the Volume Up, Home and Power keys together.
  3. When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  4. Wait until the Android Recovery Screen appears after about 30 seconds.
  5. Using the Volume Down key, highlight the option, ‘wipe data/factory reset’ and press the Power key to select it.
  6. Press the Vol Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  7. After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

Uninstall apps

Not all apps are created equal. Some apps may work smoothly but others may cause Android operating system to crash, or other apps to behave erratically. If your phone works normally after a factory reset but returns to its problematic state after restoring all apps, that can be a sign that one of your apps is to blame. Consider uninstall suspect apps or those you may have installed prior to noticing the problems to see if that will help.

Return to previous firmware version

If all else fails, find a flashing guide for your particular phone model and flash the older Android version that previously worked fine.

Problem 3: Galaxy S6 edge stuck in a bootloop

Hello my Friend. I got an Samsung Galaxy S6 Edge. And it is in an Bootloop. I don’t know the OS. The only thing that i know is: Product Name: SM-G925F Current Binary Samsung Official System Status: Official Reactivation Lock: Off Secure Download: Enabled KNOX Warrantly VOID: 0 (0x0000) RP SWREV: B:4 K:2 S:2. There is nothing more i can see, or that i know. How can i solve this problem!? BTW, im from Germany. — Alex

Solution: Hi Alex. The circumstances of your problem may be different from Omy above but the solutions remain the same. So, be sure to follow our recommendations for him and see which one works. The most likely solution for your issue though is reflashing of bootloader so be sure to do it properly. In most cases similar to yours that we’ve encountered, it’s the bootloader that’s the issue. We hope that reflashing your phone’s bootloader will be an easy fix. Otherwise, you may have to also try to reflash the firmware, or revert it to its previous version. Our blog does not provide

 


Engage with us

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.