Strange... My iPhone started being weak on signal reception yesterday morning ; then very weak yesterday night ; then collapsed entirely this afternoon. Trying to select a network from the settings even triggered an "Error" message with a "No network" message on the springboard. I finally decided to virginize the phone, upgrade to 1.1.4 and activate/jb/unlock through zibri's method. The network is back, and I am currently syning back all my settings and music. Woooof.....