1. Windows Central Question's Avatar
    I updated my lumia 520 to Windows 10 and after being updated my phone is unable to detect my sim. I inserted my sim in another phone and it was working fine. I also tried inserting another sim in my lumia 520 and it also resulted the same error my sim not detecting. Please respond to this as soon as possible.
    04-11-2015 08:49 AM
  2. Venkat S1's Avatar
    For me also the sim card is not detecting in my lumia 520 after update it to windows 10 technical preview. Actually in Settings-->About the imei number is missing. I don't know to resolve this. Please help
    04-11-2015 10:19 AM
  3. pasmanz's Avatar
    This happened on my, had to do a hard reset without using a restore point. It sucks but I needed my phone to work as a phone.
    04-11-2015 10:25 AM
  4. a5cent's Avatar
    We have multiple threads on this topic. Please continue the discussion here:


    RumoredNow likes this.
    04-11-2015 06:07 PM

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