Help Samsung Galaxy Tab E keep turn on automatically

[pointlesszebra]

I have a Samsung Galaxy Tab E SM-T561 and every time i turn it off after 2/3 seconds its turning on on its own.

I already tried this:

1. Hard Reset (several times)
2. Battery replacement

I noticed that if i shutdown the tablet when is charging it doesn't turn it on as long as is plugged in. When i unplug the cable and stop charging it, the tablet turn it on automatically.

What can it be? Thanks

 

[ocnbrze]

you said battery replacement. was this done by you? the reason i ask is because the tab e does not have a removeable battery. are you sure you installed the battery correctly? or even the right battery?

 

[pointlesszebra]

The problem occured before the replacement of the battery. I changed the battery but i don't think there are problems with it. The battery is the correct one.
I've done the calibration too, still the same problem

 

[ocnbrze]

it could be some kind of hardware issue then, especially if you hard reset the device. maybe try a flashing a firmware update and see if that might fix the issue. go to https://www.sammobile.com/firmwares/ and download the correct firmware for your device. be careful as you need the exact firmware update as each update is very specific to the device you have.