- 12-21-2010, 08:36 AM #2
You have posted in the wrong sub forum, is the 8520 locked to a network? Are you using a sim card from that network?
Can you exand on whther or not its unlocked and which network it is branded vs which network you're trying to operate it on.
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- 12-21-2010, 08:38 AM #3
Could possibly be your SIM card has not been activiated and linked to your account and that device. Also may be a hardware issue with the SIM reader in the device itself. I would suggest going to a local retail location and having check your account and try additional SIM cards to see if that resolves the problem.