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How to downgrade your Nokia Lumia from Windows Phone 8.1 Preview (and get the official update)

Posted: , by Michael H.

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How to downgrade your Nokia Lumia from Windows Phone 8.1 Preview (and get the official update)
AT&T began rolling out the Windows Phone 8.1 update (aka Cyan) for the Nokia Lumia 1520 today. Unfortunately, if you are one of the many who jumped on the wagon early with the Windows Phone 8.1 Preview, you may not see the official update coming to your device. The trouble is that Microsoft halted updates to the WP8.1 Preview, because of a bug that affected a small subset of users. This means, you'll have to downgrade your device before you can get the official update, and we're here to tell you how.

The two prerequisites are: you need a PC running Windows 7 or higher, and (of course) a Nokia Lumia running the Windows Phone 8.1 Preview. To start, always be sure to make a backup of your data by going to Settings ==> Backup ==> App + settings ==> Back up now. Once that bit of housekeeping is done, you'll need to download the appropriate Nokia Recovery Software Tool (links below). From there, it is pretty easy. Just, install the program, open it up, connect your phone to your PC via USB, do another backup (just in case), select the Windows Phone 8.0 software, and follow the instructions. The program will download the software and flash it to your phone (erasing everything in the process, so be sure to make those backups). 

Once your phone is back on Windows Phone 8.0, it will just be a matter of checking for the official Cyan update as it becomes available for your Nokia. Seeing as how the Lumia 1520 update just started rolling out, it may not be available right away. Lastly, Microsoft could reverse its stance on providing updates directly from the preview software, so you can wait and see how it goes. But, there's no guarantee if or when that might happen. 

Download: Nokia Recovery Software Tool (US & UK)
source: WPCentral

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posted on 24 Jul 2014, 22:39

1. -box- (Posts: 3991; Member since: 04 Jan 2012)

Good to know, but other than specific software tweaks (which apparently seem pretty crucial to the 1520) there doesn't seem to be much incentive to downgrade and wait. Same build of 8.1, just the model-specific software and a few other goodies that are mostly covered by Microsoft/Nokia apps.

posted on 25 Jul 2014, 09:54

4. Damo579 (Posts: 242; Member since: 18 May 2013)

You get improved picture quality, 5.1 surround sound with with video recording, and the proper firmware.

posted on 24 Jul 2014, 22:42

2. Alex123 (Posts: 241; Member since: 17 Oct 2012)

Thanks PA for this tip. I will have to downgrade my NL925 first before getting the official + Cyan.

posted on 25 Jul 2014, 00:51

3. darkoman4 (Posts: 177; Member since: 30 May 2014)

If you are running an 8.1 developer preview on your TMobile Lumia 925, than your SMS will not work when WIFI calling is on. We will have to downgrade unfortunately.

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