اولا ما هي حاله الجهاز
ثانيا اخي هناك تعليمات عليك القيام بهاء
Remove SD and SIM cards form phone
Power phone ON;
Select "Modem" connection mode;
Press "Connect" button;
Connect phone with P990 cable directly to motherboard USB port;
Type 3845#*920#;
Go to "Port Setting", select "CP Reset" (or "CP Image download") and click "OK