5800 Unlocking but Sim Card Failed Registration - Only works on T-mobile

[Ulti00]

Well I've got a Nokia 5800 on T-mobile pay as you go that was locked to T-mobile. I then went and unlocked it at those stores and I tried my O2 sim and it worked but the next morning it had no signal and kept displaying "Sim Card Registration failed"

Now when I put my T-mobile sim back in it works perfectly and everything but I have tried an Orange, Vodafone and O2 sim and they dont work at all and displays the same message constantly.

Was it a problem with unlocking? Someone told me that it's network blocklisted to prevent me from using them on other networks. Is there anyway of solving this?

If I go to a T-mobile store will they able to help me with this or?

Thanks in advance, I tried the search function already and only found people with blacklisted phone problems but mine works perfectly fine on T-mobile...

[dm3box]

Originally Posted by Ulti00

"Sim Card Registration failed"

Just like you've been told already, this message indicates a network-side block.

Usually this happens with stolen phones, or when an associated contract has not been payed.

The fact that you can use it on T-Mobile only demonstrates that T-Mobile does either not barr stolen phones at all, or manage their own database (which is not fully synchronized with the rest of the world).

You should complain to where you bought the phone to resolve the issue. To resolve probably means to swap the phone for a new one. I think it's practically impossible to un-barr a phone.

[a.asifali]

Originally Posted by dm3box

Just like you've been told already, this message indicates a network-side block.

Usually this happens with stolen phones, or when an associated contract has not been payed.

The fact that you can use it on T-Mobile only demonstrates that T-Mobile does either not barr stolen phones at all, or manage their own database (which is not fully synchronized with the rest of the world).

You should complain to where you bought the phone to resolve the issue. To resolve probably means to swap the phone for a new one. I think it's practically impossible to un-barr a phone.

100% Agree With You Brother

[Ulti00]

Ah ok thanks then.

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