Dear NoLimit04 ... now i understand here in pakistan phone works on GSM 900/1800 MHz and Nokia 6101b have 850/1800/1900 MHz . So phone show only Telenor network signals that works on 1800 MHz, phone dnt reject any other network sim but dnt show any signal coz other network use 900 MHz. now please kindly help me may it is possile i need any other Nokia software version that change Nokia 6101b freq..s or it is resolove with Hardware replacing. Kindly please help me again Thanks
You need the whole phone replaced for something that is compatible with GSM 900/1800 MHz. Can't change the software.