I've just returned from Australia and my phone still shows Australian time. When in Aus the handset picked up the Telstra network and set the time properly. But after returning to NZ, the time hasn't reverted to NZ time. I've removed the battery, but no change. Calls and txts work OK - it is just the time that is wrong. The handset (an R6) was ported from XT, if that makes any difference.
Any suggestions for how I can get the handset to sync with the network time?