I've seen a few similar threads to this, but i can't find a clear cut answer so had to start a new one. The problem is whenever i try and flash a custom ROM, my SIM card is not able to be detected, no IMEI number or anything network related except Wireless.
It's not the SIM card, or the connection etc as i have tried a few different SIM cards and all with the same result. Whenever i revert back to stock ROM, the problem is resolved, so i think it's something to do with the custom ROM having some incorrect files for my phone region.
After digging through a few of the similar posts, i decided to take backups of the efs/modemefs directories from when my phone is working, then copied then into the system folder after i flashed the custom ROM (using Root Browser). However, this didn't make any difference.
Does anyone have any idea if there are some other files i need to copy, or if my method of copying is the issue ?
I'm back on stock ROM, so no problems with my phone, but it's really annoying i can't try new ones.