I'm at my wit's end with my G2 - I'm having an issue with every ROM I've tried (Malladus, XDABBEB, C-RoM, LS, AOKP, CM11...): bluetooth simply refuses to work. I can pair, for instance with my car, but then bluetooth simply shuts off and tries to restart, but then crashes again and won't turn back on unless I reboot. Sometimes I get a com.bluetooth.blah has stopped working message, but for instance on XDABBEB I don't - it just fails silently.
This happens with every ROM. I have reverted to stock 10B and tested it and every other OTA on the way up to official 24A, and all the stock official ROMs work fine. But on 10B, 12B, and 24A bootstacks no ROM will allow me to use bluetooth for more than a couple seconds after pairing.
Possibly unrelated, but I had the classic GPS problem and didn't bother with the hardware fix attempt - updating to 24A fixed it, so I now have GPS working in non-stock ROMs. Bluetooth is the last key.