1.    18 Jan 2016 #1
    Join Date : Feb 2014
    Posts : 473

    Windows 10 Mobile Bitlocker Recovery Key Blue Screen

    A couple of weeks ago I posed a question HERE regarding how to tell whether Windows 10 Mobile device storage was actually encrypted and if so where were the recovery keys stored. The good news, is that the device storage is indeed encrypted when turning 'Device Encryption' on. The bad news is that I still don't know where the recovery keys are stored and it can permanently lock you out of your device.

    Earlier I reset a Lumia 630 running Windows 10 Mobile 10586.36 (Settings > System > About > Reset Phone) and when it restarted I was faced with a blue Bitlocker Recovery Key screen. The problem being, that it's a Desktop Bitlocker Recovery screen and as this is a mobile device it's completely useless as you can't do anything with it, it just locks you out of the device. Hard-resetting the phone (Volume Down and Power buttons) doesn't work either, it just reboots the device to the Bitlocker screen again.

    Click image for larger version. 

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    All is not lost though, as it's possible to Flash the phone back to the original OS by running the 'Windows Device Recovery Tool'. When connecting the phone to the PC and running the Device Recovery Tool, the tool doesn't recognise the device though with it in it's Bitlocker Recovery state and just shows the Firmware and OS as 'Unknown'. So you then need to click on the 'My Device Was Not Detected' button and follow the on-screen prompts. After a few restarts, it will then flash the phone back to the original Windows 8 OS. Bit of a pain, but at least not totally bricked.

    Click image for larger version. 

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    I'm not sure why resetting the phone triggered the Bitlocker Recovery Screen, as I've also reset a Lumia 640 and that didn't trigger the Recovery Mode. The only differences is that I'd unlocked the 630 from it's mobile carrier and also it didn't have a SIM card or internet connection when I reset it. Other that than they were identical, so rather strange.
      My System SpecsSystem Spec

  2.    10 Feb 2016 #2
    Join Date : Feb 2014
    Posts : 473

    It seems Microsoft may have fixed this issue in Windows 10 Mobile build 10586.107

    "Improvements to the device reset experience when BitLocker\Device Encryption is enabled by enterprise policy or by the user."
      My System SpecsSystem Spec

  3.    15 Apr 2016 #3
    Join Date : Apr 2016
    Posts : 1

    Hi. Can i get your mail,skype etc. for faster com? I have problem with Bitlocker on my lumia and i cant fix it with your manual... Please Im very sad of it... Help me I will be really greatfull. When I try to install downloaded OS it will restart my phone and installation will failed
      My System SpecsSystem Spec


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