Flash 5110?

Backed up phone with NokiaFlashDownloader

Can't seem to get serial data cable to communicate with phone - it is 5110/6110/6150 head on universal F/Mbus serial cable.

Head is OK as it works on flasher parallel cable - cant find partial for 5.27 but full flash to 5.30 then partial still no signal.

Backup restores OK - most parallel unlock proggies dont work with 5.27 firmware.