After 2.3.5 update my Bluetooth stopped working, when I try to switch the Bluetooth on it stays in half switched on and after a while it turns off without ever completing the process. I noticed it after 2 days since updating the software, when I tryed to send something via Bluetooth.
It happened to me just the same as you, I solved it by reinstalling the version of android. I have the 2.3.4 and reinstall it with the complete rom my country (because my phone is free) and odin
Search the XDA developers forum I can not spend the link ...
I hope to serve you friend! Pardon my English is goolge translator xD
Operating HTC Desire 3D now with Android 2.3.5 now and same issue.
Use Sync in my Ford and phone ALWAYS connected before. Now I have to remove device and re-pair each time with the car, and I can make outgoing calls but when I get an incoming one, it gets caught by the locked screen (used to bypass it before) and once I enter password, I get force closed and phone flips to Airplane mode, then returns to normal - however no longer connected despite the fact that my car and phone both show active connections.
Same here. After 2.3.5, my Bluetooth has been flakey - basically I get one shot to connect a headset. After one connection, if I disconnect, I can't connect any device (including the original one) unless I reboot. Cycling the bluetooth doesn't help, cycling the device doesn't help, being discoverable doesn't help. Also, I don't get a keyboard in several of my apps. Is there a way to downgrade to the prior version?