3GS automatic GSM network selection not working

[tingletangle22]

Hello,

i have here an iphone 3GS which has a problem with the automatic network selection.
When i travel to a foreign country it won't select the foreign GSM network automaticly.
I will have to do it manual in the option menu.

The Network selection setting in the options is set to automatic, which is the default.

The strange thing on this is now, that i switched to a different iPhone 3GS, to check
if this is a hardware issue. But after syncing the backup contents from the old phone
to the new, the error appears again!

Does anybody have a hint on that? Or did somebody else experience a similiar problem?

bye!