[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] ChazzMatt:
Because the XT1225 modem is not compatible with XT1254. They have different FCC ID.

There is one AOSP-based custom ROM. I have it listed below.

Also, even if you flashed XT1225 stock image, that's NOT really AOSP. It still has Motorola-proprietary stuff in it. Yes, Motorola ROMs have lighter overlays than Samsung Touchwiz crap, but it's still an overlay. :) However, if you remove the Verizon stuff from the Droid Turbo, you will be left with basically the same stock ROM that's on the XT1225. Keep reading...

There are people in Europe who are using the Droid Turbo XT1254 there (although they really should have gotten the XT1225 as it has more LTE bands), so you should be able use the Droid Turbo in Brazil. It DOES have LTE bands 3 & 7. All you should have to do is put in an LTE SIM card. But, you may have to use pre-paid SIM card. (When I took my Galaxy Nexus phone to Brazil it wouldn't work on one carrier on a contract SIM card. I had to use pre-paid. That carrier wanted you to only buy their phones. But pre-paid worked.)

However, the XT1254 Droid Turbo only has four UMTS/HSPA (3G) bands vs the six UMTS/HSPA (3G) bands the XT1225 Moto Maxx/Moto Turbo has, but hopefully it has what his carrier needs when he's not on LTE. ;)

First, unlock the bootloader. Next, install TWRP and SuperSu. Then, make a backup! VERY important.

After that, uninstall all the Verizon bloatware which he can't use anyway. Once you uninstall the Verizon bloatware, you will be at the same point as flashing Motorola stock image. You will already be at Motorola stock image, when the Verizon stuff is uninstalled.

Test that for a day or so and see if he can live with it.

If not, there's 3 or 4 custom 5.1.1 ROMs over in the Quark/Moto Maxx section which will work with the XT1254:

* [ROM][5.1.1][OFFICIAL][QUARK] MoKee OpenSource Project

MoKee OpenSource is based on the Google AOSP. [MENTION=5747496]baybutcher27[/MENTION] is the dev. He's Brazilian.

http://xdaforums.com/moto-maxx/development/rom-mokee-opensource-project-t3188936

* [ROM][All Quark][5.1.1]Resurrection Remix 5.5.9 [Optimized / O3 / GRAPHITE / KRAIT]

Resurrection Remix has tons of options. [MENTION=6324546]BayB[/MENTION]utcher is the also the dev for this ROM, which is very popular.

http://xdaforums.com/moto-maxx/development/rom-resurrection-remix-5-5-5-t3197643

* [Moto MAXX XT1225 / Droid Turbo XT1254][OFFICIAL] CyanogenMod 12.1

CM12.1 was our first custom ROM and without it there would be no others, because all the Quark (Droid Turbo/Moto Maxx/Moto Turbo) custom ROMs use [MENTION=2228410]Skrilax_CZ[/MENTION] CM kernel in their ROMs. Even [MENTION=5747496]baybutcher27[/MENTION] kernel uses [MENTION=2228410]Skrilax_CZ[/MENTION] CM kernel as a base.

http://xdaforums.com/moto-maxx/orig-development/moto-maxx-xt1225-cm12-0-pre-release-t3060089

IF you need any more help, feel free to reach out to [MENTION=5747496]baybutcher27[/MENTION]. He is in Brazil and although he has an XT1225 Moto Maxx, he is making a custom kernel and a custom ROM that works with both Droid Turbo XT1254 and Moto Maxx/Moto Turbo XT1225. He can help you trouble shoot any issues, and also write/speak to you in Portuguese, if necessary.

* [Kernel][All Quark]BHB27-Kernel[5.1.1][CM base ROM's][V-1.2.3]

Custom kernel for our Quarks, using CM kernel as base but with lots more options. [MENTION=5747496]baybutcher27[/MENTION] is the dev.

http://xdaforums.com/moto-maxx/development/kernel-bhb27-kernel-t3207526