1. AC Question's Avatar
    I got download from Android offering Lollipop 5 and downloaded but now I cannot make or receive calls - I get 2 messages Emergency calls only or no sim card and my O2 logo has disappeared how do I get it back again
    10-14-2015 07:01 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Which phone? Have you already tried removing the card, then reinserting? Have you contacted O2 about this? They might want to try a new SIM.
    10-14-2015 12:32 PM

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