my friend has the bionic and got the update Monday night, she was dropping data signals by the next day. we tried everything, airplane mode on/off, battery pulls, uninstalled all apps, factory reset, new sim, cleared history/cache/cookies and everything else mentioned here (I had 3 bionics myself) but it is still dropping.
what prompted the new SIM was her attempt to return the phone but wasoutside the return period...rep stated between the update and SIM, it would resolve the data dropping, but 20 minutes after leaving the store it dropped, which led to the factory reset.
By the way...the high pitch still exist.
Now what?