found two very,very old cards, a Vodafone that had at some time been used, and an Orange one equally old, but never used.
Both gave me access to the controls, and displayed "Limited Connectivity" but of course I couldn't use them.
Phoned O2 and gave them the IMEI No. to see if they could advise if it was locked to them, no definitive answer!
On swapping the cards round again neither is recognised. Display just says "Insert SIM".
Called O2 who swear they have done nothing to cause this, but I'm suspicious!
What's going on?