on 19-04-2020 14:39
Hi. I lost my phone so I got a replacement sim from o2 with same phone number.
I used the replacement sim in my Samsung tablet and it worked fine.
I then found my original phone (Nokia) so I tried putting the replacement sim into it.
Im now getting a "Unable to register sim" message on my original phone.
Can anyone help?
on 19-04-2020 14:41
You need to call O2 as there may still be bars on the account
on 21-04-2020 22:50
on 21-04-2020 22:50
Thanks jonsie.
on 23-04-2020 19:17
on 23-04-2020 21:59
on 23-04-2020 21:59
https://www.o2.co.uk/help/phones-sims-and-devices/activating-your-sim