[Moto X4 Questions & Answers] Neffy27:
Decided to do this write up to hopefully create a one stop shop for all. Thank you MODs for sticky!

DISCLAIMER - Modify your device is at your own risk. Check any command set you use to flash a rom to assure it does NOT have a command to relock the bootloader. DO NOT under any circumstances attempt to re-lock your bootloader!

Enjoy!

1. Who makes the Moto X4?

Manufactured by Motorola which is owned by Lenovo.

2. How many variants/models are there of the Moto X4?

Motorola Moto X4 XT1900-01 variant

3 Models: Retail, Android One, Amazon

Canada, USA

Motorola Moto X4 XT1900-02 variant

Australia, India, Indonesia, Japan, New Zealand

Motorola Moto X4 XT1900-04 variant

Latin America

Motorola Moto X4 XT1900-05 variant

Europe

Motorola Moto X4 XT1900-06 variant

Brazil

Motorola Moto X4 XT1900-07 variant

Italy, Ukraine,

Discussion thread here started by [MENTION=6502791]Jithin91[/MENTION].

3. Is there a difference between the models?

They have the exact same hardware other then certain non-US variants offer dual-sim, 4gb memory, and 64gb storage options. Their firmwares are different slightly. XT1900-01: Retail has more Motorola apps and features like the One-Button Nav exclusively. Android One is more of a pure Android experience and will have the least bloatware but has some Motorola features. Amazon has Alexa and some Motorola features.

4. Can the bootloader be unlocked and how?

The only way to know if your variant can be unlock is via Motorola's website, via their instructions. There is no alternative method. This is the definitive way to find out if yours can be unlock. Typically, users are reporting that the Amazon model cannot be unlocked.

Lenovo themselves has

not

released factory signed stock images. Once you unlock the bootloader,

THERE IS NO RETURN

. Orange bootloader msg will appear at boot, even when you perform #9. SafetyNet will pass if not rooting.

5. Can it be rooted, and how? Custom recovery (TWRP)?

Bootloader must be unlocked first.

[GUIDE][Video] How to Root Moto X4 & Install TWRP Recovery by [MENTION=921457]munchy_cool[/MENTION]

SafetyNet passes with latest Magisk

Don't forget to grab latest files from XDA Magisk Thread and TWRP. Have to install apk after flashing.

6. How do I remove the orange unlock bootloader warning at boot?

[GUIDE][Video/Text] How to Remove Unlocked Bootloader Warning on Moto X4 by [MENTION=921457]munchy_cool[/MENTION]

Also, if you flash stock firmware, the msg is there only on Oreo 8.1 and Pie. The msg isn't there if you flash Nougat or Oreo 8.0.

7. Are there any customs ROMs/Kernels yet?

First off, BIG thanks to [MENTION=6298645]erfanoabdi[/MENTION]! He didn't even own the device but did the work to make it possible.

[ROM][OFFICIAL]Lineage OS 15.1 by [MENTION=921457]munchy_cool[/MENTION]

[ROM][Unofficial][20180617]CarbonROM | cr-6.1 [payton] by [MENTION=921457]munchy_cool[/MENTION]

[ROM][Unofficial][20180630]Resurrection Remix v6.1 [payton] by [MENTION=3069475]filipepferraz[/MENTION]

[KERNEL][FEB 8] RyzenKernel -r3 (stock/oreo) by [MENTION=4825505]kraatus90[/MENTION]

[TREBLE][PORT] Android P DP5 for Moto X4 [20180801] by [MENTION=921457]munchy_cool[/MENTION]

Not an all inclusive list, head over to MOTO X4 ROMS, KERNELS, RECOVERIES, & OTHER DEVELOPMENT

8. Is Lineage going to be OFFICIAL?

It is in the works but no timeline so don't ask. One prerequisite for it, is the dev must own the device. That process was started, refer to this thread.

9. How do I go back to stock?

[Guide][Video/Text] How to Flash Official/Factory Firmware (Moto X4) by [MENTION=921457]munchy_cool[/MENTION]

10. Where do I download firmwares?

Beware that Motorola have not officially released signed stock images, can double check here. The urls below are by users.

[url]https://www.motox4custom.com/firmwares[/URL]

[url]https://androidfilehost.com/?w=files&flid=229118[/URL]

[url]https://firmware.center/firmware/Mot...tock/XT1900-1/[/URL]

[url]https://mirrors.lolinet.com/firmware/moto/payton/official/[/URL]

Full Firmware 2018 November Android One Oreo 8.1 here by [MENTION=4543295]Comby_sk[/MENTION]

Full Firmware 2018 November Android One Pie 9.0 posted here by [MENTION=4543295]Comby_sk[/MENTION]

Work in progress... Will edit/update as needed and conveniently able.