so can anyone that using iOS 6.1 beta currently confirm that this issue is fix? i really hope is an OS issue as is anoying to restart the phone to get 3g connection

i am not sure about ur case but everyone reporting here having issue is using maxis and i dont really think that maxis are selling faulty iphone 5 since day 1...i am a maxis user and having this issue as well on my iphone 5 and i not yet change my sim card from maxis center...but i manage to avoid restarting my phone but not completely by setting my carrier to manual instead of auto...select manually for my maxis carrier and once u encounter this issue, aeroplane mode should be helpful but not 100% as usual but at least avoid restarting phone 80% of the time. If this fail then restarting your phone would be the best choice...

This post has been edited by intothefantasy: Mar 14 2013, 03:46 PM

no, what i means is that if you switch to manual instead of auto, it will be easier for you to use aeroplane mode to get back connectivity rather then restarting your phone always. Before this, when i was using auto mode i cant get back connectivity by switching on/off aeroplane mode instead need to restart the phone. After switch to manual, aeroplane mode on/off makes it easier to get back connectivity but it does not resolve the connection issue...is still occur but is easier to get it back with manual mode only