From the posted details..this model is very likely linked to flex gate. This was a serious design flaw. The screen is damaged and needs to be replaced. If the adapter does not show the same status as the battery then the type c connector or ACE controller chips (cd321*) are not working. You will need a USB c power meter tool to determine what is the voltage and current draw for each port on the logic board. If stuck at 5v, then likely one of the cd321* chips is faulty. Do flip the USB C connector by 180 degrees and insert again. Do this when the adapter is NOT powering the unit. After firmly seated then plug the adapter into the wall.
