I was having troubles with a new phone (Jelly 2) connecting to my 2 TBeam’s with Bluetooth, so I tried using the latest 1.3.38 app and managed to update the 2 TBeam’s firmware via the App (took about 45 minutes each!)
Using 1.3.38 FW and APP I still have the same issues, so I’m trying to roll back the FW via Meshtastic Flasher, but now I cannot connect to either device.
Before i do any of my updates… factory reset the T-beam and when asked about previous versions click no and do a clean install. Go into the bluetooth setting app on your device and in the list that shows you everything you have ever paired, delete/forget the T-beam and pair it as new. Solved my issues a couple times now.