since i upgraded my Iphone 4s to 6.0, and strated to get " no service", or " no signal", much more frequently (100 times more than before). i've upgraded the system to 6.01, and still face the same situation.
your support is appreciated
thnak you
Note: i usually rate the iphone 3 out of 5 , as a phone (coverage, functionality, features sound clarity, privicy, noise reduction ..etc). now with the latest OS and 4s, i rate it -1 out of 5
Abdulla Awadi
IPhone: S/N: C39GH1J4DTDL
model: MD257C