How to downgrade your Nokia Lumia from Windows Phone 8.1 Preview (and get the official update)
0. phoneArena 24 Jul 2014, 22:11 posted on
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. This means, you'll have to downgrade your device before you can get the official update...
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1. -box- (Posts: 3915; 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.
4. Damo579 (Posts: 234; Member since: 18 May 2013)
You get improved picture quality, 5.1 surround sound with with video recording, and the proper firmware.
2. Alex123 (Posts: 232; Member since: 17 Oct 2012)
Thanks PA for this tip. I will have to downgrade my NL925 first before getting the official + Cyan.
3. darkoman4 (Posts: 96; 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.