How to Downgrade Nord N10 T-Mobile?

[MrT10001]

@messayisto Ah, I have /e/OS on my avicii. It works really well - no Google :beaming_face_with_smiling_eyes: :beaming_face_with_smiling_eyes:

[Josele13]

@MrT10001 is it necessary to have adb and fastboot installed to use MSM ?

[MrT10001]

@Josele13 Having ADB installed makes it easier to boot into EDL mode in order to flash the correct ROM. If you read back through the telegram chat I helped someone install with diagrams for clarity.

[wally]

@Bunchy are you still around the forum? Did you have success downgrading?
I've just bought an N10 that turned out to be from T-Mobile (didn't expect this, as it's not a carrier where I live), and am debating whether I need to return it.

The readme that @rubencarneiro mentions (and authored - many thanks!) says the T-Mobile firmware 10.5.8 version, BE88CB, is unsupported.
I presume the whole device is an issue, and that it's probably a bad idea to try to downgrade my T-Mobile phone to the Global BE88AA 10.5.7 firmware?

It may still be possible for me to return this phone and hope to find a Global version.

[rubencarneiro]

@wally you can install and it will work.

[Dunbrokin]

@wally I have the N10 also...the Tmobile version....and Tmobile is not in NZ....but I have just finished unlocking the bootloader and installing Liineage on it. See these two sites!

https://xdaforums.com/t/how-to-unlock-the-t-mobile-bootloader.4256319/

https://wiki.lineageos.org/devices/billie/install/#installing-add-ons

I have a second Tmobile N!0 (you can pick them up quite cheaply on Ebay now....and when I get the unlock code from Tmobile

https://service.oneplus.com/in/search/search-detail?id=op588

I will try putting UBTouch on it. Alos OnePlus support are really helpful!

[MrT10001]

@Dunbrokin I assume youare SIM unlocking first, before unlocking the bootloader?

[Dunbrokin]

@MrT10001 Twas already network unlocked when I got it!

[MrT10001]

@Dunbrokin That is a joy to behold when that happens. The number of devices I have got hold of that were "network unlocked" or "SIM free" but weren't is countless. I have about 10 pay as you go SIMs on the go to account for this (apart from UK O2 who are £$%$£)****)....

[wally]

@rubencarneiro Thanks for the tip! I had meanwhile procured a global version and have been daily driving it for a few weeks. Works great! Thanks sincerely for all your work.

I'll probably still convert the TMobile one.. even if I sell it, good to have more phones out there running UT.