Updated my 3gs to os4 on Thursday,all seemed to go well with the update,all apps etc seem to work fine but when on a call after around 5mins or so the phone now cuts out and goes to a black screen with just the apple logo,the phone switches back on after a few seconds but network is lost,it searches and finds the network again but call has obviously been lost.
It's beginning to really annoy me now,has anyone experienced anything similar since the update?
edit/ I'm on O2 .
Yes I had the same happen. I was calling voice mail and after a few seconds the call ended my screen went black then it rebooted, but its only happened the once and its been fine since.