Question Any Luck with Flashing a Tmobile to International?

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zymphad

Senior Member
Jul 17, 2013
893
512
OnePlus 9
I can almost guarantee you I'm one of the first LE2127 owner to unlock the bootloader and do this.

Why are you even arguing with me about a device you don't have, and whereas I can actually test this stuff and find out exactly what makes the modem power on again?
Not arguing.

I keep saying this is genuinely the weirdest thing I have read about on XDA. I don't know how I have bee part of XDA since doing my own custom roms on Nexus phones and owning three OnePlus devices now, I have never heard of this before.

And I been with T Mobile this entire time too.

Learn something new. T Mobile OP device which is 99.99 identical, flash to rom that works perfect with T Mobile causes modem to crash. Fascinating.
 

craznazn

Senior Member
Nov 12, 2009
457
199
OnePlus 8T
OnePlus 9 Pro
Not arguing.

I keep saying this is genuinely the weirdest thing I have read about on XDA. I don't know how I have bee part of XDA since doing my own custom roms on Nexus phones and owning three OnePlus devices now, I have never heard of this before.

And I been with T Mobile this entire time too.
Well, the situation is that currently, a tmobile branded OP9P (I don't own or can test the 9), flashing a non T-Mobile modem.img will crash the modem. If anyone wants to do the conversion, they should be prepared to make a backup of the stock modem.
 

TheKnux

Senior Member
  • Sep 28, 2011
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    @craznazn Now that MSM tool has just been released, as soon as I get my unlock token from OP, I can test once I unlock the BL. I have both the OnePlus 9 and 9 Pro on T-Mobile. Waiting for unlock tokens for both devices. Might take a minute though, last OP phones I tinkered with were the 7 Pro and 8 (both on T-Mo). Didn't care to mess with 8T seeing how I was eagerly awaiting the 9 series. Gotta get all my tools/files prepped again. Feel free to send me a PM if you'd rather chat that way so we don't stir anything up lol.
     

    TheKnux

    Senior Member
  • Sep 28, 2011
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    It's doable. The Global/EU ROMs will break your modem, so you'll have to re-flash your TMO modem back in order to get connectivity. I will not be making a guide until MSM is available.
    MSM is available if you wanna make that guide. 🙂 I'm sure it's the same as the 7 Pro/8/8T with subtle changes, but I'm sure myself and fellow noobs here would find it handy lol.
     
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    craznazn

    Senior Member
    Nov 12, 2009
    457
    199
    OnePlus 8T
    OnePlus 9 Pro
    @craznazn Now that MSM tool has just been released, as soon as I get my unlock token from OP, I can test once I unlock the BL. I have both the OnePlus 9 and 9 Pro on T-Mobile. Waiting for unlock tokens for both devices. Might take a minute though, last OP phones I tinkered with were the 7 Pro and 8 (both on T-Mo). Didn't care to mess with 8T seeing how I was eagerly awaiting the 9 series. Gotta get all my tools/files prepped again. Feel free to send me a PM if you'd rather chat that way so we don't stir anything up lol.
    The only MSM I see right now is the 2125, not the T-Mobile branded 2127. I even reached out to OP themselves, and there does not appear to be a MSM For 2127 yet.
     

    TheKnux

    Senior Member
  • Sep 28, 2011
    2,566
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    The only MSM I see right now is the 2125, not the T-Mobile branded 2127. I even reached out to OP themselves, and there does not appear to be a MSM For 2127 yet.
    So there's no way that the one that was just posted here on XDA would work for the T-Mobile branded one? I thought it was possible before with the OP 8, unless that was specifically for the T-Mobile version.
     

    craznazn

    Senior Member
    Nov 12, 2009
    457
    199
    OnePlus 8T
    OnePlus 9 Pro
    So there's no way that the one that was just posted here on XDA would work for the T-Mobile branded one? I thought it was possible before with the OP 8, unless that was specifically for the T-Mobile version.
    Unfortunately, no.
     

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    nmccord30

    Member
    Mar 30, 2015
    18
    3
    OnePlus 9 Pro
    Nope.

    But I am still wondering why this would break if EU and Global work perfect with T Mobile. That is so weird. I have seen plenty of threads of T Mobile users unlocking and flashing Global without problems. This is first I have seen of this. This is so weird to me. Like doesn't make sense if EU and Global work with T Mobile so by switching it would stop working. That makes no sense to me.
    Would you be willing to share the process to flash my T-Mobile 9 pro to the global
     
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    BHermes21

    Senior Member
    Sep 30, 2011
    493
    525
    Chicago
    Google Pixel XL
    OnePlus 9 Pro
    I can almost guarantee you I'm one of the first LE2127 owner to unlock the bootloader and do this.

    Why are you even arguing with me about a device you don't have, and whereas I can actually test this stuff and find out exactly what makes the modem power on again?
    I know the frustrations with xda. Just know your efforts are much appreciated. I have a t mobile 9 pro unlocked (LE2127) . If there is anything I can do to help feel free to hit me up. I'm still waiting on my unlock token from oneplus. Shouldn't be more then a few days till I get it
     
    I know the frustrations with xda. Just know your efforts are much appreciated. I have a t mobile 9 pro unlocked (LE2127) . If there is anything I can do to help feel free to hit me up. I'm still waiting on my unlock token from oneplus. Shouldn't be more then a few days till I get it


    Same, just waiting on my unlock token as well, though I just submitted mine yesterday.
     

    nmccord30

    Member
    Mar 30, 2015
    18
    3
    OnePlus 9 Pro
    I know the frustrations with xda. Just know your efforts are much appreciated. I have a t mobile 9 pro unlocked (LE2127) . If there is anything I can do to help feel free to hit me up. I'm still waiting on my unlock token from oneplus. Shouldn't be more then a few days till I get it
    If you're already unlocked what are you waiting for the token for? I'm unlocked also that's why I'm asking
     

    amaroney55

    Senior Member
    Sorry I haven't read all the replies. But basically flashing to global is like same steps as 8t? Where u have to use payload dumper and then flash with fastbootd and replace the modem?? I think that's what I have gotten outta what I read?? Lol and he/she is right about the modem replacement with TMobile.
     

    craznazn

    Senior Member
    Nov 12, 2009
    457
    199
    OnePlus 8T
    OnePlus 9 Pro
    Sorry I haven't read all the replies. But basically flashing to global is like same steps as 8t? Where u have to use payload dumper and then flash with fastbootd and replace the modem?? I think that's what I have gotten outta what I read?? Lol and he/she is right about the modem replacement with TMobile.
    Same steps, yes. Once you do, you'll notice that you wont have any wireless connectivity. Restore that by flashing the original T-Mobile modem.img, so make sure to dump your original modem first
     
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