Galaxy S7 keeps crashing and won’t boot to regular mode, backup via Smart Switch, other issues

Our today’s #GalaxyS7 troubleshooting covers power- and boot-related problems. These problems are some of the common issues that a lot of users encounter so hopefully, this article will not only help those mentioned below but also others who may have similar experiences.

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 S7 edge keeps freezing and screen keeps blacking out, creating backup via Smart Switch

I have a Samsung S7 edge & have had it for over a year. A couple of days ago my screen froze then the black screen appeared. It would not respond to anything. It had 3% left of battery life, so I put it on charge. Nothing happened on the screen at all. I Googled & followed your steps of holding the volume down & power button & it worked. I had my phone back for almost a day.

Then the next night it let me know I had 15% battery life then my screen froze with a couple of black lines on the page I was reading, then the screen went black, but the blue LED light would dim then get bright. I followed your advice, but nothing was working. I left the phone alone for a couple of hours, then the blue light went out. We guessed the battery went flat. As we were away, I waited to charge it until we got home. We arrived home & I placed it on charge. The battery symbol appeared & it started charging. It got to 69% so hubby tried the power button & the volume down button & it came on. I entered my password but then it froze. I kept pressing the power & volume buttons then it allowed me to enter my password & my home screen appeared. My biggest fear is I don’t know if all my photos are saved on the memory card & I have really important emails. Hubby was trying to see I had saved my photo’s but it froze again & the screen went black. Is all of this going to erase any of my personal stuff on the phone? Can any of my stuff be saved? Can it be fixed? — Haidi

Solution: Hi Haidi. The random reboot of the system may eventually take a toll on the memory and possibly corrupt it. We have no way of knowing though when this will happen, if at all. The best thing that you can do is to make use of the opportunity, when the phone appears stable enough to allow you to create a backup. We suggest that you use Samsung Smart Switch during the time when your S7 works normally to move your files to your computer. Here’s how:

  1. Install Smart Switch app in your computer.
  2. Open the Smart Switch app on your PC or Mac.
  3. Connect your Android device to your computer via USB cable.
  4. Make sure your phone is unlocked.
  5. On the Smart Switch app click on MORE at the top right.
  6. Click Preferences.
  7. Click Backup items tab. In this tab, you will be able to customize what items to copy and keep as back up. All items are selected by default by if you want to speed up the copying process, you may want to select the important boxes only.
  8. Once you’ve selected what items to include in your backup, click OK. Otherwise, simply click Cancel.
  9. Click Backup.
  10. Tap Allow on your phone if Smart Switch asks for permission.
  11. Once the backup is complete, you get a breakdown of all the data that was successfully backed up. Click OK to finish.

If you don’t have a computer to install Smart Switch to, make sure that you turn on Sync by pulling down the notification bar and tapping the Sync icon. Then, go under Settings>Cloud and accounts and make sure that either Google and/or Samsung account sync options (Backup settings or Auto back up) are enabled to let the phone upload copies of your photos automatically to the cloud. If you have lots of photos, be sure to upload only when you are connected to a strong wifi network with good internet connection speed to avoid incurring data charges. Once you’ve backed your photos up, you can then log in to your Google or Samsung accounts in another device like a computer to access them. Google and Samsung free cloud accounts are limited so if you have several GBs of photos and videos, you may run the risk of running out of cloud storage space. If you want, you can talk to their customer service to add more storage.

For your emails, they should be safe as long as you have copies of them in your email provider’s remote servers. However, if you set your email account to POP/POP3 during setup, your emails must only be kept locally (in your phone’s memory). This means that if the time will come that your phone will become totally dead and hence the memory’s inaccessible, you’ll also lose your emails. To check if your emails are saved in your email provider’s computers, try to log in to its webmail version in a computer. If you’re referring to your work email, be sure to talk to your IT guys to know more about it.

Now, all these freezing and screen blacking out issues can be signs of a bad hardware like a failing battery. To check if that’s the case, we recommend that you factory reset the device and see. Be sure to only do the said reset after you’ve created a backup of your important files.

To factory reset your device, kindly do these steps:

  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 data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option Yes — delete all user data using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Remember, factory reset returns all software settings back to their known working defaults. At this state, no bugs should be present including ones that can affect the battery or other phone functions. If your S7 still continues to act erratically after a factory reset though, that means bad hardware is behind it. In this case, you must contact Samsung for repair or replacement.

Problem 2: Galaxy S7 keeps crashing and won’t boot to regular mode

So I have a Samsung Galaxy S7. One day it crashed and froze on the home screen and overheated and I left it and did a forced reset. After this the device would switch on and get stuck on the loading screen. I loaded it in safe mode, but it continued to crash. Afterwards I backed up my documents and did a factory reset and the problem has continued. It will load first time to the home screen and cut out after a couple of mins and reset but gets stuck in the load screen and gets very hot. It then stays like this until the battery dies again. I am very stuck as to what I can do with it? Do you have any advice? — Daryl

Solution: Hi Daryl. Since factory reset did not do anything at all, the only other software troubleshooting that you can try at this time is to reflash the bootloader. This will return this important piece of code back to its default settings and hopefully allow the phone to boot back up normally. Here’s how it’s done:

  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.

Remember, there’s no universal flashing guide. The exact steps for your particular phone model may be slightly different from the steps above so be sure to check other guides. The steps above are only for demonstration purposes only. Also, flashing requires a computer with the right Odin program to do.

Problem 3: Galaxy S7 won’t turn on

Last month, my phone started to power off in the middle of texting, and phone conversations. I called support tech…they did a diagnostic test, and said battery was good, and it was charged. Also, I took it in to an AT&T store, and was told that battery, and all else seemed good. One day the phone powered off, and never powered on again. I need to retrieve all my files, and data. Please help me. Thanks. — Ryan

Solution: Hi Ryan. Access to your phone’s storage device is only possible when the phone is powered on and the touchscreen is working to allow a second device like a computer to move files. If your phone has become totally dead, you’ll need to find a way to fix that first. Kindly check this link and follow our suggestions for Pinkiegrl17.


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