I tried flashing Cyanogenmod 11 to my LG L90 D405n. I had some problems but i did flash it in the end, it loaded but one problem left - my SIM card is not working. It shows message: Emergency calls only. Then i decided that it could be the problem with that software I just flashed, so i flashed stock ROM using your posted method step by step. However the problem is still present, I can't use my SIM card. It also shows message: Current version is not available for user. Can't find matched cust for NT-code mcc/mnc[FFFFFF], subnet. Could it be that flashing this new ROM damaged my phone antenna or is it just software that is blocking my connection? How can I fix this problem?
Thank you in advance.