08-15-2016 03:03 PM
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  1. SyntaxUnknown's Avatar
    I went through the whole process of using a different IMEI (from my wife's L1520) and got LTE working. Unfortunately, a few days later it got bumped back down to 4G.

    My guess is that something sync'd with the back end and the real IMEI from my 950XL got updated on the account. I guess the only real solution is for AT&T to update the IMEI on their end for the 950XL which will hopefully be soon.
    12-01-2015 08:40 AM
  2. Marsiss Tian's Avatar
    Seems like the best option so far is waiting for two weeks to see if this LTE issue is resolved?
    Since providing other IMEI will only temporarily get LTE back.
    Fenoy likes this.
    12-01-2015 09:48 AM
  3. Fenoy's Avatar
    I think you nailed it. AT&T/MS need to solve this issue before I'm willing to jump on the 950XL wagon. Makes you wonder if there are any adults in the room.

    Seems like the best option so far is waiting for two weeks to see if this LTE issue is resolved?
    Since providing other IMEI will only temporarily get LTE back.
    PepperdotNet likes this.
    12-01-2015 12:05 PM
  4. Fenoy's Avatar
    If borrowing "some ATT branded IMEI" is a solution that solution is akin to borrowing someone else's car and assuming the car is now yours on a permanent basis. Unless I'm missing something no permanent solution to this problem has not been found. This is an AT&T/MS problem and they need to come up with a permanent solution not some jury-rig workaround.

    It won't work by itself. The problem most people are having is that LTE is turned off on their accounts because they gave 950XL's IMEI. Since this phone is recognized by ATT as 3G only, LTE capability ON THE ACCOUNT is switched off. That's why people need to call ATT first and give them some ATT branded IMEI (like from a previous phone). That way account is being fixed and SIM card should be provisioned automatically. If it doesn't then and only then your fix will help. However it's rare that the account has LTE enabled and SIM doesn't get provisioned...
    Frankly speaking I'm surprised that this thread is still active as a solution to this issue has been found on Thursday and after that all the post basically repeat the whole process from the scratch. Daniel even posted an article on WindowsCentral inspired by this very thread and described the solution.
    12-01-2015 12:17 PM
  5. prjkthack's Avatar
    Had LTE since day one and still have it. No issues.
    12-01-2015 12:50 PM
  6. Akira X's Avatar
    Had LTE day one, no issues. Once again if you want to avoid LTE issue because using another imei from another phone makes you feel naughty, just go cricket wireless (if available) no imei is needed for anything.
    12-01-2015 02:27 PM
  7. wheelerk's Avatar
    Go to network and wireless in settings then cellular and sim then sim settings then click update settings. You might need to reboot the phone after. Try that and see if lte shows up. Not sure about the 640 xl but my 640 had a different sim size then my att 950.
    This worked for me. I clicked the update settings and then restarted my 940XL
    12-03-2015 06:34 PM
  8. Ken1ceo's Avatar
    I followed the suggestions here in the forum; put the SIM in another phone and activated it & added a new APN. Profile: ATT, APN: pta, User Name: blank, Password: blank, Type of sign-in info: none, IP Type: IPv4, Use this APN for LTE: Checked, Proxy Server: blank, Proxy port: blank, Apply this profile: checked, [Save]. After about 10 minutes of syncing and a hard reboot (on & down vol) LTE started working.
    12-03-2015 07:32 PM
  9. AWD4416's Avatar
    I tried everything posted and nothing work. My problem was that I got a new SIM card as my last phone was an iPhone 4s, this was a temp phone while I jumped ships from Sprint. Anyway the first attempt with tech support using the 950XL's IMEI did not work. Actually it made things worst as my Voicemail stopped working. I borrowed a friend's 1520 and tried support again. They did their thing and I waited till the 1520 showed LTE and my VM started working. Now back on my 950XL I have working VM (not sure about the visual one) and LTE.

    One thing I wanted to point out, not sure if I read it in this thread. The 1520 was running Win10 and when I placed a call, it dropped to 4G just like the 950XL does.
    12-03-2015 08:11 PM
  10. d33pth0u9ht's Avatar
    Interesting update... the customer service rep that I spoke to on the LTE provisioning issue called me back today and left me a VM stating that AT&T will officially recognize the 950XL IMEI's starting on Dec 10th and that LTE would be fully functional at that time without having to spoof the system with a different IMEI.
    12-04-2015 03:36 PM
  11. PepperdotNet's Avatar
    Interesting update... the customer service rep that I spoke to on the LTE provisioning issue called me back today and left me a VM stating that AT&T will officially recognize the 950XL IMEI's starting on Dec 10th and that LTE would be fully functional at that time without having to spoof the system with a different IMEI.
    A week is better than the 3-6 months the chat rep I interacted with today suggested. I can wait a week.
    Fenoy likes this.
    12-04-2015 03:54 PM
  12. Marsiss Tian's Avatar
    Interesting update... the customer service rep that I spoke to on the LTE provisioning issue called me back today and left me a VM stating that AT&T will officially recognize the 950XL IMEI's starting on Dec 10th and that LTE would be fully functional at that time without having to spoof the system with a different IMEI.
    Good news.
    I never know before that AT&T has such IMEI database to block out other phones to use LTE. As someone mentioned, cricket did not block any phone although they are using AT&T's network.
    Fenoy likes this.
    12-04-2015 04:21 PM
  13. dlcpa's Avatar
    I was wondering if you could use the 950xl on Verizon LTE with an unlocked phone but LTE band for Verizon is 13 (which the 950s don't have) and 12 for AT&T or something like that. So, what is ATT trying to block out. T-Mobile?
    12-04-2015 04:38 PM
  14. Marsiss Tian's Avatar
    I was wondering if you could use the 950xl on Verizon LTE with an unlocked phone but LTE band for Verizon is 13 (which the 950s don't have) and 12 for AT&T or something like that. So, what is ATT trying to block out. T-Mobile?
    I remember it's Verizon who block out 950/950xl.
    Actually unlocked AT&T is working well with T-mobile.
    12-04-2015 04:49 PM
  15. Fenoy's Avatar
    Interesting update... the customer service rep that I spoke to on the LTE provisioning issue called me back today and left me a VM stating that AT&T will officially recognize the 950XL IMEI's starting on Dec 10th and that LTE would be fully functional at that time without having to spoof the system with a different IMEI.
    Appears to be very good news. I'll call my AT&T guy on the 11th and see if he has been updated. Thanks for the information.
    12-04-2015 06:53 PM
  16. d33pth0u9ht's Avatar
    Now we just need to hope he wasn't full of crap. Hehe.
    I have to give credit for the great follow-up from this rep though. When I spoke to him originally, he said that he would follow up with me after getting feedback from his team. I didn't think it would actually happen to be honest.
    Fenoy likes this.
    12-04-2015 09:56 PM
  17. Mr Hyde's Avatar
    Interesting update... the customer service rep that I spoke to on the LTE provisioning issue called me back today and left me a VM stating that AT&T will officially recognize the 950XL IMEI's starting on Dec 10th and that LTE would be fully functional at that time without having to spoof the system with a different IMEI.
    I've been following this thread waiting for something like this. If its true, I'll be off to my local Microsoft store to get my 950XL. As an added bonus I'll also be flipping Verizon the bird as a result.
    maevinj likes this.
    12-04-2015 10:45 PM
  18. Hill717's Avatar
    This was easy. Just started chat and within 5 minutes phone switched from 4g to LTE.
    12-05-2015 10:44 AM
  19. d33pth0u9ht's Avatar
    I will report back on the 10th or 11th. Hope to have good news.
    GenghisKhent likes this.
    12-05-2015 10:44 PM
  20. winboy's Avatar
    I have had LTE since the day I bought and activated my 950 XL on Thanksgiving Day. MS store gave me a brand new SIM card, got online with ATT and they activated for me with the IMEI from my new phone.
    12-06-2015 07:38 AM
  21. jmajid's Avatar
    so - this is to those people who substituted their imei from their preivous ATT LTE phone to get their 950XL working with LTE...

    how long has it been since you did the substitution and had LTE working?
    Is it still working now?
    12-08-2015 11:39 AM
  22. snakebitten's Avatar
    so - this is to those people who substituted their imei from their preivous ATT LTE phone to get their 950XL working with LTE...

    how long has it been since you did the substitution and had LTE working?
    Is it still working now?
    It has now been 12 days of LTE. Using a 640 Go Phone IMEI
    jmajid likes this.
    12-08-2015 08:58 PM
  23. anguilla1980's Avatar
    I can confirm LTE on my 950 XL using a GoPhone SIM in Maine. Brewer.
    jmajid likes this.
    12-08-2015 09:08 PM
  24. jmajid's Avatar
    I can confirm LTE on my 950 XL using a GoPhone SIM in Maine. Brewer.
    how long since you switched it into your 950XL?
    from what phone was the sim taken?
    12-08-2015 09:40 PM
  25. anguilla1980's Avatar
    how long since you switched it into your 950XL?
    from what phone was the sim taken?
    Been in my unlocked 950 XL dual SIM since 25th Nov. Came out of my unlocked 640 dual SIM. I'll note that my 640 dual SIM never got LTE because its an HK variant.
    jmajid likes this.
    12-09-2015 09:10 AM
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