1. Cabowp's Avatar
    Force loaded 7720 several months ago when released. Radio ver 1.0.3.10. Hardware ver 1.0.0.0. Over last couple of months calls occasionally drop after about 45secs to 1 min with full 3G signal strength. Have tried doing both power reset as well as full factory reset but problem persists. Anybody seen the same issue? I am on Telcel Mex.
    04-16-2012 09:09 AM
  2. Adyhooper's Avatar
    Network connection is a main issue for drop calls. This is technical problem that is also known as dead zone. Cell phone coverage is a depend on signal power between mobile and mobile operator network.
    07-31-2012 08:02 AM
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