C62 V20 problem unlock

[flasher_34]

i have C62 V20 tried logger and Logger decrypter, read succussfully
but when i put the codes given by decrypter , it displays "unauthorized"
plz explain me what's wrong and what should i do, thanks

[TELE-MEDIA]

I think someone tried to unlock that phone and put wrong code too many times. Maybe you should write repair gdfs (and maybe flash)
Good luck
BR
ZG