Hi.

I have given my mother my old nokia as her old motorola M3588 wont hold it's charge. I swapped over the sims, but get an sim card registration failed message. The sim from the motorola was a BT card. The card that was in my old nokia was a Tesco prepay with out credit. We wanted to use up the credit on the old card first as it has around £15 left on it.

Now what needs unlocking. The phone or the sim? If so is it an easy and free thing to do, if so how?

Cheers

You cannot use that old sim in new phones, you will have to but a new one!

The old SIM has been de-activated. SIM Card Registration Failed means the account no longer has a place on the network. My advice would be to pick up a new O2 SIM Card. They are often free on the internet and O2 run this promotion regularly.

Funny. sim works in the original motorola phone. I can dial out.