Chosen Solution
Help! had the same problem with note 9 tried this the battery got some charge and was 3.85 volt but device didnt turn on. A repaid guy told be that the phone has no shorting of any kind i dont know what can be the problem!
@mustaqeem the instructions from My battery died to 0% and won’t charge now, wired nor wireless. would only work if your battery was discharged below its charging threshold. It will not fix a battery. My suggestion would be that you start with a new battery. Your battery may have shown a proper voltage but may not accept a load or fail under a load. Replacing the battery will at least give you a known well starting point should further troubleshooting be needed. Check this teardown Samsung Galaxy Note9 Teardown to see what is involved with that.
