Announcing Windows 10 Mobile Insider Preview Build 10549

Nov 20, 2013
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excerpt :
Windows 10 Mobile Insider Preview Build 10549 right now to Windows Insiders on the Fast ring. However, this build comes with a caveat. We discovered a bug late last night that caused phones upgrading from Build 10536 to get stuck at a black screen after this new build is installed. Rather than making you wait a little bit longer for us to fix this bug – we decided to release this build as a single update from Windows Phone 8.1. Current Insiders that would like to try out Build 10549 should:
  • Go back to Windows 8.1 first using the Windows Device Recovery Tool.
  • Once you’re on Windows Phone 8.1, install the Windows Insider app, choose the Fast ring, and reboot your phone.
  • After that – this build should download and install on your phone.

If you choose to remain on Build 10536 – that’s fine too. You will not receive today’s build but we’re working to ensure you’ll be able to receive the next one. We know having to go back to Windows Phone 8.1 to get this new build is a bit of work. By doing so you are also helping us test the upgrade path that millions of Windows Phone 8.1 customers will take to upgrade to Windows 10 Mobile, so we appreciate the adventurous Insiders who choose to go this route and give us feedback.


Noob Whisperer
Nov 19, 2013
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OH..... what fun.
Downgrade to upgrade..... again.
Well I did it, which is no easy feat on my Nokia 810 as it did not come with 8.1 it came with 8 and resetting it takes me all the way back to 8.
Then I have to install the 8.1 developers preview which actually is multiple upgrades in itself and then I can upgrade to this latest mobile build. So I did....
Which resulted in a reboot loop and I thought my phone was bricked this time for sure. A hard reset failed, but I was finally able to get it to stay on long enough for the recovery tool to see it and reinstall.....
Which means I'm back to Windows Phone 8 again.

This bleeding edge tech can be a real hair puller.

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