Chosen Solution
charging the devise over night, the internal battery “inflated” about 3-4 times of it’s size and capacity and “buckled” the glass display and the back cover and the glue separated. I removed the back cover completely. Is there possible to replace the battery with a new one (normal size), lucky it didn’t explode.
@grumpybearr you definitely want to discard the swollen battery appropriately. After that replace it with a new one. You may also have to replace the display panel if the over pressured battery damaged those. This teardown ASUS ZenPad S8 Teardown will at least get you to the point where you can replace your battery.
It should be possible to replace the battery, given that the device itself has not taken any permanent damage (deformation or rupture of the frame, torn cables, etc.). If the glue of the screen separated, it would be best if it was replaced. As for the battery having inflated, this damaged LiPo battery should be disposed of safely ASAP. Check for a special disposal location near you and transport it safely there (no metal container that could short the battery, no sharp edges that could tear / puncture it). Put it somewhere where you could possibly get rid of it fast and as safely as possible if it should catch fire.
