munnum n

can i use this with every sim? I have Motorola e770 its work with just on sim can i use this mobile with every sim how can i do this.

R O to the D

telephone company's put a sim lock on the phone so that only sim cards from that provider can fit in the phone. you can have the sim lock removed however it removes the warrenty of the phone and you need to find a place that does it.

scattycat06

you need to take it into a mobile phone shop and ask them to unlock it for you

Tony H

You can get other sim cards as long as they are for the same service provider all they will do is to give you a new phone number. To change your service provider you will need to get the phone unlocked some of the phone sellers do unlocking as long as you buy a sim card from them and they will charge you for unlocking. You could also go onto the internet with your phone details and you may get a free unlock number to put in to unlock your phone that way you could use what ever sim card you like. It would mean some of the functions of the phone may not work with an unlocked phone so do your checking first.Tony