How Do You Fix a Samsung Galaxy S7 Won't Turn On?

Hi so my mom has a s7 and it was working fine and then after not being used for a couple minutes when she went to use it again it was a black screen and not turning on.

- From Android forums

We understand that it is pretty maddening when your Samsung Galaxy S7 phone gets stuck on a black screen and won’t turn on. But you’re not alone. Lots of other users have encountered the same problem on their Samsung devices. It could happen due to numerous reasons, including both software and hardware issues. Fortunately, we’re here to help you fix this issue through this guide. Read on and learn all troubleshooting methods you can try to fix the Samsung Galaxy S7 won't turn on or charge issue.

Part 1. How to Troubleshoot Samsung Galaxy S7 Won't Turn On?

In this part, we’ve listed all the possible ways to fix Samsung S7 won't turn on issue. Try them on your device and find out which one works for you!!

Way 1. Force Restart Samsung S7

The very first thing to do when you encounter an issue of Galaxy S7 Edge won't turn on, or charge is force restarting your device. It will refresh your device, automatically close all background operations and resolves glitch that might be causing this problem.

If you’ve not yet performed force restart on your device, follow the below steps to do so.

  • Press and hold down the “Power + Volume Down” keys at the same time for about 10-15 seconds.
  • Let your device start again to boot to its main screen.

force restart Samsung s7

In case this method doesn’t help you fix Galaxy S7 screen won't turn on problem, continue reading.

Way 2. Plug Your S7 into a Charger

If you wonder why my Samsung Galaxy S7 won't turn on, then it could be possible that your device’s battery is completely drained out. Software or app updates, background operations, and heavy apps can quickly drain out your device’s battery without you even realize.

So, to fix the issue, follow the below steps to charge your device’s battery:

  • Connect your device to the original charger and use a wall socket for charging the battery.
  • Let the device charge for at least 20-30 minutes.

After charging the device for at least 20 minutes, turn it on and see if the problem goes away or not.

Way 3. Boot Samsung Galaxy S7 in Safe Mode

Booting your Samsung Galaxy S7 device in Safe Mode can help you determine whether a third-party application is causing this issue. Safe Mode boots your device with the in-built applications. If your device works well, then it could be an indication that third-party apps or programs you have installed on your device are the reason behind your Samsung Galaxy S7 won't turn on or charge.

To boot your Samsung device into Safe Mode, follow the below steps:

  • Press and hold down the “Power” key and let the Samsung logo appears on the screen.
  • Once the logo appears, let go of the “Power” key and then press and hold down the “Volume Down” key.
  • Let your device reboot itself.
  • Once your device turns on and enters the Home Screen, you’ll see “Safe Mode” as shown in the below figure.

boot Samsung s7 in safe mode

If you face no issue in Safe Mode, you’re facing the Samsung Galaxy S7 edge won't turn on or charge a problem due to third-party applications. So, get rid of them to fix the issue.

Way 4. Try Recovery Mode

To fix such issues, including Galaxy S7 Edge won't turn on or charge, entering the device into recovery mode helps a lot. As you enter recovery mode on your device, you’ll get numerous options, including wipe cache partition. This option will not only help you fix your Samsung device that won’t turn on but even keep your phone free from unwanted data.

Here’s how to enter recovery mode to clear cache partition on Samsung Galaxy S7 device:

  1. Step 1: Press and hold down the Home + Volume Up keys and then press the Power key.
  2. Step 2: Once you see the Samsung logo, let go of the “Power” key.
  3. Step 3: Now, when the Android logo appears, let go of other keys and leave the device for about 30-60 seconds.
  4. Step 4: Use the “Volume Down” button to highlight the “Wipe Cache Partition” option and choose it using the “Power” key.

    wipe cache on s7

  5. Step 5: After the process, choose “Reboot System Now” and that’s it.

If entering the device into recovery mode and clearing cache partition doesn’t help you fix your Galaxy S7 won't turn on red light issue, move on to the next solution.

Way 5. Repair Android System to Fix Samsung S7 Won't Turn on without Data Loss

Don’t lose hope if none of the above solutions has helped you fix an issue of Galaxy s7 not turning on or charging. All you need to do is get your hands on the UltFone Android system repair tool. Its primary purpose is to help Android users fix common problems they encounter on their devices. What’s more, the tool causes no data loss in order to help you fix your Samsung Galaxy S7 device that won’t turn on without any data loss.

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If you want to give a try to this solution, get the UltFone Android system repair on your system and follow the below steps:

  • Step 1 Run the tool, connect your Samsung Galaxy S7 device to the computer and then choose “Repair Android System” from the main interface.

    repair Android system to fix S7 wont turn on
  • Step 2 On the next screen, click the “Repair Now” button and provide your device information to commence the process.

    enter S7 device info
  • Step 3 With the provided device info, this program will download a compatible firmware package.

    download firmware package for s7
  • Step 4 When the firmware package is downloaded successfully, follow the onscreen instructions to enter download mode on your device, and then start the repairing process.

    start repairing Samsung S7 system
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That is the process to fix Samsung S7 not turning on via Android system repair. The success rate is much higher than using other methods.

Way 6. Factory Reset

In case you’re ready to take the risk of losing your data or have already backed up your device, you can also try factory resetting your Samsung Galaxy S7 device that won’t turn on. This method has worked for many Android users who encountered the same issue of galaxy s7 won't turn on blue light. Give it a try, and it may work for you as well.

Here’s how to factory reset your device:

  1. Step 1: You need first to enter your device into recovery mode. To do so, check [Way 4].
  2. Step 2: Once entering the recovery mode, use the “Volume Down” key to highlight the “Factory Reset” option and use the “Power” key to select it.

    factory reset S7

  3. Step 3: Let the device complete the process. In a while, your device will automatically reboot. If not, use the “Reboot System Now” option to do so.

Part 2. Samsung Galaxy S7 Dropped in Water and Won't Turn on

Is your Samsung Galaxy S7 screen won't turn on after you accidentally dropped the device into the water? If your answer is yes, go to the local repair shop and tell the technician about the water damage. As the warranty doesn’t cover these kinds of damages, you would be charged or may have to purchase the component required to make the device work again.

The Bottom Line

There is no need to panic when your Samsung Galaxy S7 Edge won't turn on or charge. The common workaround covered here has helped many users who encountered the same issue. So, it would probably work for you as well. What’s more, if common troubleshooting methods are of no help to you, UltFone Android system Repair can come to your rescue.

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