I have problem with my N8. Whenever i put telenor simcard in it it says "SIM card registration failed". The same sim seems to work on other devices, and some sim's seem to work on n8. Phone has no simlock and when i put telenor sim in it i can see contacts and i can use simextras. I bought it from my friend and i thought that maybe my IMEI was blocked for some reasons but it isn't.