I was able to successfully update my G2x with the GB update and all is working fine with what appears to be one exception: I'm unable to remove the check mark in the mobile network settings section where you can check "Use only 2G networks." I can uncheck it, but it reappears when I go back in and I have yet to get a 4G signal (I'm in a strong area). I seem to recall this being an issue upon release but unable to find any thread that addresses this issue...