AT&T users with the unlocked Microsoft Lumia 950 XL might have problems getting a 4G LTE signal

AT&T users with the unlocked Microsoft Lumia 950 XL might have problems getting a 4G LTE signal
The Microsoft Lumia 950 XL is now available unlocked from the Microsoft Store. Even though the phone does support AT&T's LTE bands, some users of the phablet are complaining that they can't get connected to the AT&T 4G LTE network. A report published today suggests that this is happening to those who are going through the set-up process with the phone before inserting their AT&T SIM card. Do not set up your Lumia 950 XL until after your SIM card is inserted.

Another thing that you might need to do is give AT&T an IMEI number. This is the International Mobile Station Equipment Identity number, and every phone has a unique IMEI. Carriers keep track of the IMEI numbers of the phones they sell, which means that AT&T won't have one for your Lumia 950 XL. Remember, the only place to buy the phone in the states is from the Microsoft Store, both physical and online. The phone can be purchased unlocked only.

One trick suggested by those who frequent the Windows Central forums, is to call AT&T and give them the IMEI from a Microsoft Lumia 950 display model from an AT&T Store. Or, grab the IMEI from an older AT&T phone that you no longer use. One forum member says that AT&T needs to have an IMEI from an AT&T branded handset for the LTE signal to connect to your phone.

Once you have an AT&T related IMEI number to give the carrier, call the mobile opeator and provide them with the IMEI you obtained, and your SIM card number. You should find yourself hooked up in no time. Keep in mind that this appears to be happening with AT&T only as Lumia 950 XL users on T-Mobile are not having this issue. In addition, if you are moving from another AT&T 4G LTE enabled handset to the Lumia 950 XL, you shouldn't be having these problems either.

source: WindowsCentral

Related phones

Lumia 950 XL
  • Display 5.7" 1440 x 2560 pixels
  • Camera 20 MP / 5 MP front
  • Processor Qualcomm Snapdragon 810, Octa-core, 2000 MHz
  • Storage 32 GB + microSDXC
  • Battery 3340 mAh(19h 3G talk time)



1. Plutonium239

Posts: 1218; Member since: Mar 17, 2015

I guess I am glad I opted for the regular 950 and not the XL.


Posts: 932; Member since: Feb 23, 2014

Or you could just set it up with the sim card inserted. Not that hard.

9. Plutonium239

Posts: 1218; Member since: Mar 17, 2015

True, and I probably would have gotten the XL if it were financed.

3. PapaSmurf

Posts: 10457; Member since: May 14, 2012

I want to try out the XL just for the hell of it.

4. Furbal unregistered

No issues whatsoever getting lte on att or tmobile on mine.

5. Cheezwiz

Posts: 500; Member since: Dec 29, 2014

Yep. 4G works fine on my 950XL with AT&T. Took it in, they popped in a new sim, was up in running in about 5 minutes. no problems at all.

6. alrightythen

Posts: 35; Member since: Jan 07, 2015

So now we need to have them get visual voicemail added to the XL. Doesnt work for tmobile or ATT

7. oldhamletman

Posts: 72; Member since: Sep 03, 2011

visual voicemail is dead though... doesn't work ... deal killer feature


Posts: 18; Member since: Jun 18, 2015

Reading about this thing, I am glad providers are not that stupid and strict in my country.

10. alrightythen

Posts: 35; Member since: Jan 07, 2015

Not sure what you mean just by saying stupid and strict.....If you are talking about verizon and sprint because they use cdma, then yes, they are losing out. if you are talking about people that cant pay full price for an unlocked phone and need to finance it (maybe they dont need a 650 phone) then yes. Tmobile and att work just like they should. I have both att and tmobile. I use both sims in the phone and they both work great with LTE. The only problem is visual voicemail is not active yet on either. According to MS tech support they are working on it. We shall see on that one!


Posts: 18; Member since: Jun 18, 2015

I clearly say "providers". As for people that cannot afford, there is no argument there. Since people actually PAY the phone to the provider hidden (full retail price) in the monthly contract installments, I don't know (because I don't know how it works in USA) if they could actually bargain monthly installments even with retail shops or their credit card company. It would be effectively the same.

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.