When I try to run the ##4636## code, I get 'Connection problem or invalid MMI code' msg. I've tried adding a command, restarting, safe mode, network and a new sim. Nothing works.
Turn off wifi calling and make sure phone is limited to 3g.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues. Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues. Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
