08-27-2015 11:32 PM
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  1. Matthew Morte's Avatar
    So my question is...lets say i buy a t mobile phone outright. now i sim unlock it to use on at&t...can i still get Kitkat updates via Att ota updates? If i root i can un root and then update...then re root as its Tmobile no locked boot loader, but how do i get updates OTA or otherwise? Thanks
    10-18-2014 10:09 PM
  2. Matthew Morte's Avatar
    as long as att doesn't get your Imei number you will connect with LTE...if they realize you are on a tmobile imei number they will restict your speed for some reason...work around is to provide an approved att lte phone imei number it will not effect your service or the service of the phone used...it will only allow lte speeds.
    10-18-2014 10:14 PM
  3. Matthew Morte's Avatar
    how does one update to new kitkat verisons if using a t mobile note 4 on att...?
    10-18-2014 10:15 PM
  4. bdubb427's Avatar
    Hi Reesh11,

    What did you end up doing? I was also considering buying the T-mobile phone and using it on my AT&T carrier due to the price difference. I have actually never done this before. Though I'm reading issues about different frequencies between carriers amongst other things (AT&T updates, rooting, etc.)?
    11-10-2014 02:00 PM
  5. bdubb427's Avatar
    Hi Reesh11,

    What did you end up doing? I was also considering buying the T-mobile phone and using it on my AT&T carrier due to the price difference. I have actually never done this before. Though I'm reading issues about different frequencies between carriers amongst other things (AT&T updates, rooting, etc.)?
    11-10-2014 02:43 PM
  6. ArtVandelay's Avatar
    So here's my update:

    I pulled the trigger on a TMo Note 4 off-contract, used cellunlocker.net to unlock the SIM (worked great and in minutes), region unlocked it beforehand, and I was off. Everything worked great, including LTE.

    After a week or so, I noticed it was only on HSPA+, so I checked my APN settings, reflashed my ROM, but to no avail. So I checked with ATT multiple times to ensure the IMEI was right and my plan was right. Their system says that my IMEI is registered as a blackberry, which is why I can't get LTE. I checked on swappa.com and with TMo, and both said the device is a Note 4.

    I'm really at a loss. To double check, I put my SIM back in my Nexus 5, and it also only gets HSPA+, so it must be on ATT's side as far as I can see. Anyone else have any experience with this?

    The phone works fine, but I'd really like LTE back.
    bdubb427 likes this.
    11-10-2014 02:53 PM
  7. Matthew Morte's Avatar
    You need to get an imei number for any lte att phone and provide that number to their customer service rep. You will then have lte speeds....some people have gone to the att store found a note 4 or 3 or whatever imei off of a display model and provided that number to the rep...once their system has that number it will give u lte speeds. Let me know if this doesn't work
    11-11-2014 09:36 PM
  8. Matthew Morte's Avatar
    Just wanted to share my experience and information about what it took to get an unlocked international phone onto GoPhone with LTE. I got the IMEI registered at the store and everything, but couldn't get LTE working. I called CS and received stock answers, so knowing my Razr HD (its bands, hardware, etc), I forced them to escalate me to Tech Support and received an AWESOME guy named Josh. I explained to him what was going on and he didn't treat me like I was dumb, but explained that I was correct and something was wrong on their end.

    Apparently, all accounts default to HSPA+ or GSM if they can't recognize the IMEI as an LTE device. Thankfully, I had my mom's Atrix HD and gave him that IMEI and was able to have my account registered as an LTE account, but my device still wasn't connecting. Apparently, my international device isn't in their database. He had to re-register it on his end and have everything re-authenticated. I had to step outside to get signal to the tower again, but once it registered, BAM! I had LTE. Signal was great inside.

    So, word of caution to this bringing a non-AT&T branded device: you need an AT&T LTE device IMEI in order to have your account provisioned for it (according to tech support). I spent about 2 hours on the phone between CS and Tech Support to get it resolved, but working now. Apparently they do not have a default "bogus" IMEI for international devices. No issues getting LTE with T-Mobile, so not sure what kind of system AT&T uses. I just drop to Edge if I lose LTE with them, so sticking to GoPhone for now.

    Hope this post helps others as I couldn't find anything on the net to help me with it.
    jdbii and bdubb427 like this.
    11-11-2014 09:48 PM
  9. reesh11's Avatar
    Hi Reesh11,

    What did you end up doing? I was also considering buying the T-mobile phone and using it on my AT&T carrier due to the price difference. I have actually never done this before. Though I'm reading issues about different frequencies between carriers amongst other things (AT&T updates, rooting, etc.)?
    I just bought one on AT&T.

    From my smokin' hot Note 4
    bdubb427 likes this.
    11-11-2014 10:45 PM
  10. ArtVandelay's Avatar
    Update!

    So I went in to the AT&T store yet again and explained what was going on. He checked my plan and manually changed my device showing on my profile to a Note 4.

    At first it didn't work, but I swapped batteries later that night, and turning off the phone must have triggered something because I have LTE again. However, I'm only getting 5-7mbps down. I used to get 20-50+. Not sure if that's because it's a TMo phone or what.
    bdubb427 likes this.
    11-12-2014 03:22 PM
  11. Matthew Morte's Avatar
    Might just be where you are the only difference between note 4 att vs tmobile is one band...and if you flash the modem software you can activate that band
    11-14-2014 08:22 PM
  12. jnelson2000's Avatar
    Can the att radio software be flashed on the tmo variant or will that brick the phone?
    12-20-2014 11:11 AM
  13. PlanetPluto7's Avatar
    I took a phone from att to T-mobile. Just had to get att to unlock it because they lock em.
    12-20-2014 01:54 PM
  14. mocsab's Avatar
    I dont know if my answer is too late or not - DO NOT flash ATT MODEM on TMOBILE PHONE or vice versa - it will brick.

    Couple of other things:

    I own a TMOBILE PHONE and use ATT Service. LTE Speeds are great.

    Any udpates to the phone have to made manually - but you can go to Sammobile.com and dowload the update when it is available and flash via ODIN - full instructions on how to do this are avarilable at sammobile.com

    If you buy an ATT phone to use on TMOBILE you will not be able to run custom roms because the BOOTLOADER is locked and cannot be unlocked - if you buy a TMOBILE PHONE and use it on ATT you can run custom roms because the BOOTLOADER IS unlocked.

    GOOD LUCK
    01-08-2015 02:53 PM
  15. sulla1965's Avatar
    Wait, can't you buy a t-mobile Note 4, sim unlock it for around $30 and use it on H2O or Cricket wireless? Or am I wrong? Thanks
    04-25-2015 10:53 PM
  16. WeAreNotAlone's Avatar
    I dont know if my answer is too late or not - DO NOT flash ATT MODEM on TMOBILE PHONE or vice versa - it will brick.

    Couple of other things:

    I own a TMOBILE PHONE and use ATT Service. LTE Speeds are great.

    Any udpates to the phone have to made manually - but you can go to Sammobile.com and dowload the update when it is available and flash via ODIN - full instructions on how to do this are avarilable at sammobile.com

    If you buy an ATT phone to use on TMOBILE you will not be able to run custom roms because the BOOTLOADER is locked and cannot be unlocked - if you buy a TMOBILE PHONE and use it on ATT you can run custom roms because the BOOTLOADER IS unlocked.

    GOOD LUCK
    Hate to take a thread off topic but my needs are the opposite of OP.

    I want the run either a AT&T or VERIZON NOTE 4 on T-Mo USA.


    T-Mo version would of course be best option but for a bunch of reasons but due to pricing between the variants I've been thinking about trying out AT&T or VERIZON NOTE 4... and if the testing does not work out port the lines into T-Mo.

    Any progress been made on unlocking the boot-loader for either?
    Additionally, how about ROOT access?


    PS: I've read at least on the Verizon Note 4 radio bands can be reprogrammed... I would assume the same is true for AT&T if ROOT access can be enabled.

    Heard of anyone that has been successful in manually editing the Bands on a NOTE 4?



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    08-27-2015 11:32 PM
41 12

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