Today morning I noticed a message saying welcome to Lumia Denim
on my 1020 as soon as I turned on the phone. And out of joy, I checked the extras+info, and I saw the Lumia Denim
software release notice to confirm it. Of course in my settings I set the phone for automatic update and install at 3.00AM as preferred time. We have another 1020 at home and I quickly checked that I didn’t see anything there. The extras+info
still shows it as Lumia Cyan. The only difference between these two phones is, the one that got Lumia Denim
is developer unlocked and “Preview for Developers” installed. AFAIK, that shouldn’t make any difference because developer unlocked allows you to test your development on the device using Visual Studio debugger and Preview for Developers lets the beta bytes rolling from Microsoft for OS not the firmware. Lumia Denim
is part of GDR and needs to be tested by AT&T or whatever carrier you use to roll onto your phones.

The about settings shows different versions for both the Lumia 1020s definitely. The upgraded phone with Lumia Denim shows higher version numbers for OS. You can notice that in the following screenshots of the phones.

Note: I also happen to developer unlocked and preview for developers installed Lumia 920, but that didn’t get the Denim either.

Do you see Lumia Denim
on your AT&T Lumia 1020?


  1. That is really weird for me because I have a L1020 and I’m running PFD and my Lumia shows the same OS version as yours running Denim but mine still has the Cyan listed on the Extras+ Info page. What’s even more interesting is that on your L1020 that is running Denim, you have two apps/services that are not in my list:
    Accessories Agent and Glance Pinboard Agent. Thank you for posting this information. Hopefully AT&T will make an announcement about this very soon. We can hope.

  2. Are you sure you have Denim? There is a bug on Preview Devices the mistaken shows Denim. If you unselect Developer Preview it would show Cyan. You can do a search, my 1520 showed this as well until I got actual Denim a few weeks ago.

  3. It looks like I got the update on March 1st on my 1520.
    Been away from here for a while. Busy with my new ASUS ME572C tablet.

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