1. Zolotoy's Avatar
    As the title says. After installing W10 preview on my Lumia 920 the SIM card is not recognized. What are my options?

    Thanks
    04-21-2015 09:02 AM
  2. N_LaRUE's Avatar
    Two options.

    Hard reset seems to correct the problem. If not you need to roll back to W8.1.

    If those aren't options you should never have loaded the TP.
    04-21-2015 09:25 AM
  3. Zolotoy's Avatar
    Will I need to reinstall all OS updates after a hard reset?
    04-21-2015 09:27 AM
  4. N_LaRUE's Avatar
    Will I need to reinstall all OS updates after a hard reset?
    Hard reset -Settings -> About -> Reset phone

    This wipes your phone completely clean. Be sure to backup prior to it.

    Next option is using this - How can I recover/reset/restore my phone software? - Microsoft - USA

    This requires a PC and internet. This will install the old OS.
    04-21-2015 09:35 AM
  5. Zolotoy's Avatar
    Since my SIM card wasn't recognized by W10 TP does that mean there is no point of trying installing it again after hard reset?
    04-21-2015 09:57 AM
  6. Zolotoy's Avatar
    Well, recovery process failed, hard reset (three buttons) has no effect. Any ideas?
    04-21-2015 10:14 AM
  7. N_LaRUE's Avatar
    Well, recovery process failed, hard reset (three buttons) has no effect. Any ideas?
    Yes, use the software I indicated above. That will revert you back to WP8.1

    A hard reset doesn't revert you back by the way.
    04-21-2015 10:56 AM
  8. Zolotoy's Avatar
    I dont think I can use another software because I can't even turn the phone on.
    04-21-2015 11:44 AM
  9. N_LaRUE's Avatar
    I dont think I can use another software because I can't even turn the phone on.
    Well that's not good but have tried plugging it into a USB cable yet? When I tried W10 on my phone it 'died' on me but then came on when I plugged it in to USB.

    Also holding down the power button will sometimes cause a 'reset' to perform and it may turn it on.
    04-22-2015 02:35 AM
  10. Zolotoy's Avatar
    I tried everything, nothing worked. Not even hard reset with three buttons. The phone does not come up.
    04-22-2015 04:18 AM
  11. N_LaRUE's Avatar
    Did you download, install the software, run it and plug in the phone?
    04-22-2015 04:31 AM
  12. Zolotoy's Avatar
    That is how it was. I downloaded this How to roll back from Windows 10 Preview to Windows Phone 8.1 | Windows Central and started the process. It showed a progress bar on my phone. Dont remember if it was any movement on it. Then the software said that the process has failed. Restart the program and connect your phone or something like this. After that the phone is not powering up.
    04-22-2015 04:38 AM
  13. N_LaRUE's Avatar
    Ah. Well.

    The only thing left now is sending it in for repair unfortunately. Hopefully that's an easy process...

    They did mention that they upgraded the recovery tool recently.
    04-22-2015 04:49 AM
  14. Zolotoy's Avatar
    It's ok. It was time to change a device anyway.
    04-22-2015 05:12 AM

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