My sony ericsson c902 is saying inactive sim when

Have you checked with your telephone charger balance?
In addition, take out the SIM card and try it again.

Celia from Mobile Power

USIM is the SIM card for 3G networks (U stands for UMTS). It operates under a different voltage level, as compared to the normal SIM card.
Many operators (like mine here) don't make a distintion, related to their service, between them, i.e. I can access the 3G network with my old SIM card. As far as I know, USIM cards shouldn't be put in non-3G phones. On the other hand, 3G enabled phones are able to handle both types.
Just my 2 cents... Carlos

i am mobile engineer . now this time my hand sony ericsson c905 insert sim solution very need please help me

here
http://www.mobileunlocksolutions.com/sony-ericsson-c902/rs1wp9/
u can get your mobile unlocked at very low cost , safe & secure..it gives you best solution.

i am using sony ericsson c510i -first inactive usim problem and next secend insert usim problem so please solution in image view

Be a good person and hand it into the police as lost property - or be a slimeball and keep it

I know this is a silly question but are you putting the sim in correctly?

u shuv it up ur ***!! thats wat i done it now works :D

Insert any other sim in ur mobile if that is working fine then u need to swap the sim

 

Gizmo1