[AC Question]

I have Android version 5.0.2. After a few seconds it goes to the black screen with the SAMSUNG logo and the sparkly lights. I have tried fiddling with the lock window settings and set the display time to 10 minutes, but none of this make a difference. Sometimes it goes to the SAMSUNG logo and then after a minute or two flashes the home screen for a few seconds and then goes to black screen and won't turn on for another minute or so. It is impossible to use!!

[leegreg81]

I'd recommend performing a factory reset.

Follow Solution 2 in the guide below:
Samsung Galaxy Tab S 8.4: Hard Reset Factory Reset - SolverBase.com

[Moshis]

Hi there , where you able to resolve this issue with the hard reset or any other way ?
I am having the exact same issue with a brand new SM-T700 and it is wrecking my nerves !

I tried turning off the Screen Smart Stay , setting the screen timeout to 10 minutes , turning off the adaptative display feature , etc ...

But it still happens !!!

please Help !

[ap70]

Same here. My warranty just expired and I started getting a light flash on the creen, then blacks out, bricks, restart. Already factory reset ed without any changes. Samsung is a ****. Just don't buy it.