I've recently upgraded my S2 i9100 to 4.0.1 (I9100XXLPQ) from 2.3.6 and my Orange SIM does not connect to network anymore (it says "emergency calls only"); manually selecting the network doesn't work either. It worked prior to update and I've tried several roms/modems without success.
Here's the tricky part: this SIM works on my other phone just fine, and other SIMs (even from Orange) work perfectly on this S2.
IMEI is same as on back of phone..
Thanks in advance!