Strange thing happened to me !!!
I have played arround with some old nokia 5110 5.04. I was trying to find some solution for upgrading, language changing in this nokia. I have backupped the flash but not the eeprom ( my mistake ). SO after few partial flashing, and full flashing, i have tried to flash back original flash but phone started on with low contrast and when i inserted sim it was sim card not accepted!!!!
Phone was unlocked before!!! I'w tried to unlock with nokiatool 034 and nothing?!?! Still locked. But when i flashed the phone with 5.29 software and unlocked it with partial flash it was unlocked but no network offcourse. Why the phone with 5.04 version can not be unlocked????? All 4 locks closed!