Missed this previously, sorry! Yes. I've tried flashing older BIOS versions. Multiple new chargers. I've tried 5 different batteries from Amazon and eBay. 2 ha

Missed this previously, sorry! Yes. I've tried flashing older BIOS versions. Multiple new chargers. I've tried 5 different batteries from Amazon and eBay. 2 have worked for a hot minute before failing to be recognized. I've popped in the swollen battery to test to make sure something else wasn't working and the swollen battery stays recognized. Reading Reddit/talking to others in similar positions it's hit or miss whether the specific machine will work. I can't find a pattern with BIOS version, model, dates, etc. To date I've probably spent 30 hours troubleshooting and I've given up :(