I have bad news for guys who have lost their IMEI number and serial number of course with defect "MOBILE NETWORK NOT AVAILABLE" I have try really many comginations STOCK/CUSTOM ROMS + PATCHED MODEMS without success. So only one option was for me after 3 weeks go to an original service and leave them reinstall stock rom thru box. Service here in UK is really fast, it was after 24 hours done. They gave me latest stock rom I guess latest stable rom android 4.2.1
) One thing is when I will have this problem again, for example I cant use NV-items_reader_writer because after input code *#7284# to dialer I access Phoneutil
UART under that options MODEM a PDA
USB and under same two options...
If anybody had the same problem and solved it. I will really happy for any usable guide.