Hi! I left my tablet on 10% or less for some days and came back to it completely drained. I charged it and the screen lights up with the battery and lightning symbol, it blinks for a split second and shows the battery symbol with 0% in the middle, then it blacks out again for about 2 seconds and the process repeats.

How do I solve this (preferably without having to open it up)? I've tried pressing: 

power + volume up + volume down + home = nothing

power + volume up + home = Android system recovery screen, choosing any of the options (or leaving it idly for some seconds) leads me back to the repeating charging symbols

power + volume up + home = Odin mode, leads back to charging after a few seconds