I have a charge and I live near a major metropolitan area and sometimes the Charge will not have a data connection for some reason. Doesn't happen to any of my other phones and I wonder what's going on?
There is a known issue with the Droid Charge. It appears to be related to the LTE antenna even if it is turned off. There is a Better Business Bureau case about it. Some people complained and have gotten many replacement phones without luck. I am considering moving on to the Prime as I have the same random issue even on different ROMs and different Software for the antennas.
If you decide to reset the device, follow these steps:
Go to your Home Screen Press the Menu button Choose Settings Choose Privacy Choose Wipe Data / Factory Data Reset (sometimes called Clear Storage, and sometimes located in SD Card & Storage, not Privacy)