hey m using nokia 701
its asking pin code again & again
and after few hours it shows sim card registration faild then i have to switch it of & on again
i hav inserted my sim in other mobiles its working properly
but some times when i remove my memory card it works properly
but i hav also scanned my memory card it dosen't have any virus
i havce formateed my phone many times but i am not able to fix this problem
please help me with this issue.............
You have tried your SIM in other phone and its working fine..OK..but also put other SIM in your Nokia 701 and see if that works..
..also, it always work fine without the Memory Card or sometimes (as mentioned) ? Back-up data from the MC on your PC and Format the MC. It may not be due to Virus but due to some corrupted data on it ...