"NO SIM Card Installed" after updating to 5.1

Discussion in 'iOS 5 and earlier' started by nippysaurus, Mar 8, 2012.

  1. nippysaurus macrumors newbie

    Nov 30, 2008
    I have just updated to 5.1 and now my sim card is not detected. Is this a known issue and and is there a fix?
  2. mapa macrumors newbie

    Mar 8, 2012
    Same here!

    Tried to backup and restore, but still gets the no sim installed-message...
  3. DocGo macrumors member

    Aug 16, 2008
    Perhaps your phone is a jailbroken-unlocked iPhone? Then the OS upgrade probably disabled your jailbreak-unlock.
  4. nippysaurus thread starter macrumors newbie

    Nov 30, 2008
    Its not joilbroken and I did try resetting the network settings which didnt fix anything.

    I was going to do a full restore but wanted to check that everything was being backed up with icloud first ... but the icloud settings were "currently unavailable" so will try again.

Share This Page