Some reports also claimed about some AT&T subscribers encountering similar setback in the form of their device not turning on upon unboxing - a problem, which according to AT&T, may be caused by improper packaging procedure.
Responding to this concern, we have compiled three potential solutions plus some helpful tips we've gathered from relevant forum postings and threads.
You too can refer to this troubleshooting guide, in case you are having the same problem with your new Samsung smartphone.
A. Try to charge the phone
Go get your phone, hold the power button and then plug in the charging cable. If the problem occurs after not using your S6 for quite some time, then it is possible that the battery is just empty. And when the battery is completely drained, it may take a while for you to your device to power up. So give it some time to recharge, preferably at least 30 minutes and then hold the power button for about 10 to 20 seconds.
B. Boot into Safe Mode [If applicable]
If you still can power on your device, try to boot into Safe Mode. Booting into safe mode will only let you use pre-installed apps on your device since all third-party apps will be disabled. So, it would be easier for you to determine whether a third-party application is causing you trouble.
Here's how to active Safe Mode on your Galaxy S6:
1. Press and hold the Power button until the Samsung screen displays.
2. When the Samsung logo shows up, release the Power button and the hold down the Volume down key.
3. An indication that you are already in Safe Mode is the "Safe Mode" label shown at the bottom left corner of the screen.
If the problem is gone while using the Safe Mode, then you can try to disable or uninstall third-party applications you suspect is causing conflict.
B. Perform Wipe Cache Partition
If your Galaxy S6 screen remains black, you can try performing wipe cache partition in the Android recovery mode. Here's how to do it:
1. Power off your phone.
2. Press and hold down the Power button, Volume up and Home buttons simultaneously.
3. When the Samsung logo displays, you should see a Blue Recovery Text at the top. Navigate in the Recovery Menu and use the Volume up and Volume down keys to highlight an option.
4. Select Wipe Cache Partition from the given options.
5. Press the Power button to confirm option selection.
6. Select Reboot System Now.
7. Wait for the process to complete and you're done.
Other Helpful Tips to deal with No Power and Black Screen Issues with the Galaxy S6 and S6 Edge Smartphones
- Be sure to use the battery and charger that come with your device (Samsung-provided).
- Check your device and ensure it's running the latest software version.
- Check the Power Key and make sure it is not loose.
- Check for stuck buttons. If you notice a button seems to be stuck, gently wiggle the button from side to side using your finger to pop it into place.
- Check the liquid damage indicator (LDI) for any possible liquid damage occurring on the device. If there is, please contact your phone carrier immediately to escalate your concern.
- Power cycle your device by turning it off for about 30 seconds and then turn it back on afterwards.
- If problem persists, you may perform a hard reset or contact your carrier for additional support.