here are two firmwares
http://www.telital.com/downloads/doc...B007_OM_IT.zip http://www.telital.com/downloads/doc...3_B007_SLO.zip
you can try flashing it
but if battery has high internal resistance (just old battery) it will star to act wierd like no network or call ended without power off etc just exchange battery.
i used some models before and found about same problems
