Hi Douglas, It sounds like she needs an updated Sim. This could happen if O2 add a service that requires 3G or something like that, and the Sim can't cope. The IMSI number is a sim-lock number. Your only recourse is to contact O2, and I know this may not be easy, as I believe they will have to send her a new Sim. I hope this helps. All the best -- Computer Room Services: the long cane for blind computer users. Telephone Low-call: 08452 606 277 International: +44(0)1438 742286, Fax: +44(0)1438 759589 mobile: +44(0)7956 334938, Email: mailto:Steve@xxxxxxxxxxxxxx Web site: http://www.comproom.co.uk -----Original Message----- From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of Douglas Harrison Sent: 05 July 2006 14:19 To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] Mobile problem Apologies for asking a question totally outside the scope of this list, but I know that there are many very knowledgeable list members, and I am out of my depth here. My wife has a mobile which she bought many years ago- in the days of BT Cellnet I think, although it is now O2. She tops it up at three monthly intervals. The next top up is due later this month. Today it has started giving an "Imsi failed" message when she switches it on and she cannot make calls. When I try to contact her I get a "Number not recognised" message. i have spent a long time on the O2 web site but I have made little progress. I cannot even find a way of contacting O2 Customer Service because when I enter the phone number in the appropriate edit field, it is not accepted. my wife intends to get anew phone in the near future, but does not want to lose the cash already in the old one. Any help would be very much appreciated, Douglas -- Douglas Harrison ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq