I didn't have this problem specifically, and with a Plantronics headset, but deleting it from the phone and re-pairing seemed to fix my troubles, just an idea.

 

No issues here, works fine with my EQ7 and T505.

 

After the update to ICS my bluetooth won't keep a connection to my Sync in my truck. Before ICS it was connected and never dropped.

Any ideas ?

 

About two weeks after the ICS update on my phone, I suddenly lost bluetooth link to my car. the phone kept saying that bluetooth was turning on. I switched off my phone, took out the battery for about a minute and put everything back on. Now it connects no problem.

 

ok, the problem came back. the bluetooth is in a perpetual state of "turning on." it won't link to my car. something's definitely off. the battery pull worked for a while but something is obviously making the bluetooth wonky.

 

Been trawling the forums with the same issue.
Conclusion : it is an ics issue with most music players. I use poweramp so emailed them for a fix. Using stock RAZR 4.04 player, which is unaffected in the meantime.

 

I had a similar problem after Google Maps crashed and rebooted the phone. My Bluetooth would never start on the phone. Did a battery pull and now everything works.

 

I rolled back my ICS from the OTA 215 official update to 6.16.211.XT912 and it works fine again.

 

Ummm... never heard of that version, you know you are in the HTC Rezound forum, right?

 

Are things working out for you? I'm still having problems and I just read the issue with the Maps app. Someone posted that they were also having problems connecting bluetooth to their car. It seems the Maps update might be causing bluetooth issues and the easiest fix for now is to uninstall the latest update. Trying it now.

 

I have had the same issues. Not only is the phone not pairing to my car, but bluetooth on the phone itself won't turn on. Also maps restarts my phone every time. I've done factory resets, changed battery's (verizon sent a replacement), I'm on my third phone after verizon has sent me two replacements. This was actually happening for me before the update, but since it's just gotten worse. Also the battery won't charge with the wall charger. I think I'm done. I just spoke with verizon customer support at length, they are offering me either a galaxy nexus or a motorolla droid razr (not maxxx) as a switch option for free, or I can just buy a SGS III for $599. What do you guys think? Time is critical, she is calling me back in about 45 minutes.