The AT&T Nokia Lumia 1520 phablet can now be updated to Windows 10 Mobile

According to those who installed the Windows 10 Upgrade Advisor app on their AT&T branded Nokia Lumia 1520, the phablet can now be updated to Windows 10 Mobile. The size of the file is 750MB, and the build number is 10586.107. Eventually, a more up-to-date version of Windows 10 Mobile containing build 10586.420 will be disseminated OTA.

Before starting the updating process, Lumia 1520 users should make sure that the phone is connected to a Wi-Fi signal. At the same time, the battery needs to be charged to at least 40%. To download Upgrade Advisor on to your Lumia 1520, follow the link at the bottom of this story. The app is free and is required if you want your phone to be updated to both new Windows 10 Mobile builds.

The very first Nokia phablet, the Lumia 1520 features a 6-inch LCD display with a 1080 x 1920 FHD resolution. The Snapdragon 800 SoC is under the hood with a quad-core 2.2GHz CPU and the Adreno 330 GPU. 2GB of RAM is inside along with 32GB of native storage. A 128GB capacity microSD slot is available to those seeking additional storage. A 20MP camera with OIS adorns the rear of the phone, and a 1.2MP front-facing camera snaps selfies and handles video chats. Power is provided by a 3400mAh battery.

Download the Windows 10 Mobile Upgrade Advisor by clicking on this link.

source: AT&T via WindowsCentral

Related phones

Lumia 1520
  • Display 6.0" 1080 x 1920 pixels
  • Camera 20 MP / 1.2 MP front
  • Processor Qualcomm Snapdragon 800, Quad-core, 2200 MHz
  • Storage 32 GB + microSDXC
  • Battery 3400 mAh(25.1h 3G talk time)



1. Gemmol

Posts: 793; Member since: Nov 09, 2011

I am surprise they post this when they have not post all the new apps Microsoft be getting lately, or how Microsoft people talk about the new surface phone how high end and innovating it will windows phone will be fully supported they fully behind it not abandoning it......


Posts: 411; Member since: Sep 29, 2015

It's because they can't handled the fact Microsoft is about to shake up the mobile world. The Surface made android tablets obsolete in 2 models, and now the Surface Phone will make people question the little green bot that could.

11. LetsBeHonest

Posts: 1548; Member since: Jun 04, 2013

I'm very interested to see a Surface phone as well but You sounds just like those people claiming each new smartphone as "iPhone killer" Lets look at the reality, Surface phone is said to be capable of running legacy Windows apps right? As far as I know Intel hasn't released any flagship grade SOC lately nor heard any future plans. right? Now lets talk about purpose running legacy windows app. It is less relevant on a smartphone compared to running on a smartphone, don't you think? I don't think a full featured adobe Photoshop or CorelDraw would be as much as joy to use on smartphone compared to the same on a tablet or laptop PC. If it comes with snapdragon (ARM) processor say, 830 or other, then they wont be able to fulfil what a surface phone we want should be able to. I seriously don't think Microsoft wont be able achieve on smartphone market what they achieved on tablets markets. Their current attitude toward Windows mobile OS might turn off many developers (which they seriously lacks; and maybe the only thing as well) I'm interested in surface phone cause I want to see what kind of tech it brings to the industry. But honestly don't believe it'll create a blow that would shake android or iOS seriously. Future tells...

23. Jason2k13

Posts: 1462; Member since: Mar 28, 2013

You're the same troll who said Windows 8, and then windows 10 will blow the competition... now its the non-existence surface phone.... are you eventually gonna change your mind?

5. justrt

Posts: 446; Member since: Jul 10, 2014

I haven't heard any positive news about Windows Mobile lately and I've been following Windows central.

8. GreenMan

Posts: 2697; Member since: Nov 09, 2015

W10M needs some time to become a third major player... It has it quirks, no doubt... But they aren't severe enough to completely ditch the idea of buying a Windows Phone... It's biggest, and perhaps the only flaw is the App Gap... They're a good 3 to 4 years behind their Android and iOS counterparts... Opera Mini on WP8.1 has the functionality of Opera Mini that was launched soon after Jelly Bean... Same is true about various other apps... But The OS itself is a gem... Fast, fluid, efficient and hence EXTREMELY optimised, on par with iOS...

9. Martineverest

Posts: 521; Member since: Oct 27, 2015

a microsoft official revealed some info about surface phone yesterday in london.......he said the phone will be a high end one and will align with desktop.he also said the phone will be a standard for oems to replicate,just like surface tablets

12. LetsBeHonest

Posts: 1548; Member since: Jun 04, 2013

Wow that's a good news.. Been a little while hearing such good news about Windows mobile... Please share some links if available..

2. Pattyface

Posts: 1658; Member since: Aug 20, 2014

I had this phone a good while back and it was a good phone with awesome build quality. Glad to see it getting the uodate

4. miketer

Posts: 520; Member since: Apr 02, 2015

There are some minor irritations when it comes a Windows 10 on a 1520, but overall, well worth it.

6. Switch00

Posts: 536; Member since: Sep 04, 2013

Besides of extra wallpaper settings, no real diffirence compared to 8.1. I would laugh at this 'upgrade' if that wasnt so sad. 1520 had huge potential.

7. GreenMan

Posts: 2697; Member since: Nov 09, 2015

Ah, no real difference except for wallpaper, you say? (Beep Beep Beep). Please let me check my radar. Something is up... Oh, I see... My Troll Radar has just detected a typical narrow minded and wholly ignorant Fandroid Bogey that's not even good at trolling... I'd write down all the differences between WP8 and W10M, but that list would be quite HUGE... And besides, there's no point trying to conceive an Android Cannibal with primitive mindset of starting clear from strangers... You aren't even worthy of my G'Day... Farewell...

14. miketer

Posts: 520; Member since: Apr 02, 2015

@ Switch - I presume you're not using a Windows phone with 10 running on it. Let me give out a short list - a) Fully functional MS office, b) Increased rows under 'quick actions', c) Outlook mail client for all emails - SMTP or POP d) Groove music app integrated to OneDrive. e) Many additional inbuilt apps like for weather, conversions within the Calculator module, etc. With this, there are some irritations which comes up too, like the disappearance of the numeric pad (sometimes) while punching in a phone no., delayed recognition of a tap on a link in MS Edge for some sites, but your comments.... is not worthy comment for a healthy discussion.

25. Fona13A unregistered

You know jack **** Switch so like, go away and off the internet forever please.

10. meanestgenius

Posts: 22043; Member since: May 28, 2014

So much for Microsoft "leaving behind" users of Windows Phones running 8.1 like this one. The other day it was the Nokia Lumia Icon getting updated to Windows 10, now it's the Nokia Lumia 1520. Wonder which one will be next? Good job, Microsoft.

16. Furbal unregistered

1520 is still there best phone I've owned in the last 4 years Just a damn solid device. Killer sunlight legibility, amazing battery, good performance, damn good camera for its day.

17. meanestgenius

Posts: 22043; Member since: May 28, 2014

I don't own one, but I've played around with one extensively. It truly is a great phone. I own a Lumia 640xl, a Lumia 640, a Nokia Lumia 925 and a Nokia Lumia 521. The closest one to the 1520 is the 640xl, but it's still no 1520.

18. Crispin_Gatieza

Posts: 3137; Member since: Jan 23, 2014

My brutha you need to ditch those 1GB WP units and get a 1520. The size is no issue if you have a Passport, they're about the same width. Having owned a 950 and 950XL, I'd say the 1520 with its "ancient" SD800 and "only" 2GB of RAM outperforms either of the newer models. With W10 the ghost touches went completely away and the camera is still 2nd only to the Nokia 808. Good job Microsoft. Let others like HP, Acer and Alcatel build the phones and concentrate on the OS.

19. meanestgenius

Posts: 22043; Member since: May 28, 2014

Nice! I'll definitely be on the hunt for a 1520 now. I've always wanted one, to be honest. And that camera on the Nokia 808 is amazing! I have one. I was a huge fan of the Nokia's Symbian OS back in the day. I always leaned more towards the "E" series (just can't get away from them physical keyboards!), but the "N" series had all the goodies!

21. Gemmol

Posts: 793; Member since: Nov 09, 2011

that is lies, I had a 1520 and I have a 950, the camera is not better and it is not smoother than the is a great device though, but people like him or her hype up the 1520 because they do not want to upgrade, call it cognitive dissonance......the only thing I will give the 1520 over the 950 is the beautiful design, and screen size......other than that the 950 and 950 XL beat it in everything else.........2k screen is way better than the 1520 1080p screen, even though it eat the battery is better, I do not have to explain, and anyone who say the 1520 faster than 950 is just crazy........but I honestly feel that the 1520 run windows 10 the best after the 950 and 950 XL......when I was on insiders, I never had the issues the 930 and Icon had, and I definitely did not have the issues the other phones had, so who ever was developing the software did a great job for the 1520......but like I said before, dont waste your money, if you can, the 950 or 950 XL with its bland design is a much better all around phone

24. meanestgenius

Posts: 22043; Member since: May 28, 2014

I've known Crispin for just about the entire time that I've been a part of PA. He's not the type to lie to me or mislead me. If he's telling me that the 1520 is that good, I'm taking his word for it. Not to say that the 950/950xl don't have its advantages or that they aren't good, I happen to like the 950/950xl combo, but I'm rolling with Crispin's opinion on this one.

28. Crispin_Gatieza

Posts: 3137; Member since: Jan 23, 2014

Riddle me this genius. Why did so many users and tech reviewers have initial software issues with their 950 and 950XL models? Why is it that the 950 series has to rely on tri-tone flash to achieve similar, yet warmer pictures. I've owned all three and the 950 is much better than the XL. That being said, the 1520 doesn't have Continuum, Hello or USB-OTG so it's short on features. But head-to-head, the 1520 is still a better performer with insanely better battery life. I don't need to lie about anything because I don't have a dog in this hunt. You however, need to see a proctologist about that acute butthurt-itis.

27. maxha97

Posts: 100; Member since: Aug 28, 2012

1520 still has ghost touch issue even in w10m......

29. Crispin_Gatieza

Posts: 3137; Member since: Jan 23, 2014

You must be attributing a separate screen-to-body manufacturing issue on the left side of the display that caused tiles on the lower left side to open.

22. Furbal unregistered

I really hope MS can get w10 ported to other devices. I'd flash my op3 in a heartbeat.

26. Fona13A unregistered

I can see the 830 getting an upgrade.

13. Fona13A unregistered

You know some were burned by the somewhat recent news about condensed support but this kind of turnaround is nice to see, I think. I really, really do hope Windows 10 Mobile gets the progress it needs and deserves.

15. mahima

Posts: 729; Member since: Nov 20, 2014

lumia 1520, a 3 year old device having larger battery than most flagship smartphone of today, and still very capable camera...

30. Jason2k13

Posts: 1462; Member since: Mar 28, 2013

Yeah because most flagships today are 6 inch in size? Not soo special when compared to flagships of 5.5 - 6 inch.

31. miketer

Posts: 520; Member since: Apr 02, 2015

yeah, the camera, it's tops

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