I just purchased the Bionic and already see an old problem. Some time ago (edited) I had the HTC Thunderbolt and first noticed the icon for the 3g/4g radio was gone when I unlocked the phone. Seeing as it was new I waited for a fix - never came. I went back to my Droid at the time.
Fast forward to 10 months later and the same problem different phone. When I leave my phone locked for more than 10-15 minutes and sitting on my desk, the phone disables/makes dormant the 3g/4/g radio. My radio is set to always sync in the battery settings and I have factory reset the phone.
Still happens and Verizon tech support seems unaware of the issue.
Here are 70 discussions I found using the search function. If your connection is not lost, it is probably not an issue. It could be a tower issue (call *228) and update your signal. Otherwise, if your connection is lost, requiring a reboot, I have no ideas, but others will.
There is a (now) known problem with the bionic that some people are experiencing no data or no 3g or no 4g data issues with their phone. For now, the work around they are telling people is to turn their phone into airplane mode, then back to normal mode and it will work. Software update to fix the issue is expected in November.
2.3.4. added a new option under Settings / Wireless and Network / Wiring Settings / Menu / Settings / Never Auto Turn On Wifi and I have been able to stop the disconnecting issue by checking this box.
One day I noticed that when my data disconnected the wifi would jump up breifly and then close again and sometime it would just turn on when I never enabled it.... Give this a try and see if it helps you..
*228 doesent work well or anything on 4g phones. If ur data fine can u do voice and data like the thunderbolt can?
*228 samages some devices sim cards, if its 4g then this woulfnt be wise.. Also they reported that under 4G it will do data and voice but it cant under 3g like the TB,,,