WM8850-mid (Eken W70 clone) auto "waking up from sleep"

Hi guys!

I recently bought 7" WM8850-mid tablet, I got no problem with this tablet aside from putting the tab on sleep mode.

after pressing the sleep/power button the tab goes into sleep but in a few seconds, it turns on automatically.

I got this unit brandnew and it has this issue...

WM8850-mid (Eken W70 clone) auto "waking up from sleep"