yashsingh1/xdaforums huggingface dataset:
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] mattrav05:
PS C:\Users\mattr\Downloads\platform-tools_r30.0.4-windows\platform-tools> fastboot flash recovery twrp.img

target reported max download size of 536870912 bytes

sending 'recovery' (33144 KB)...

OKAY [ 1.006s]

writing 'recovery'...

FAILED (remote: No such file or directory)

I flashed it once, it didn't reboot into twrp and now when i try again i get this...

Fixed it, the directory to flash to was "boot_b"

ugh that wasn't right either, it was "recovery_b"

makes sense now.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] ninjakira:
Well finally got it going so thank you [MENTION=5503871]Beetle84[/MENTION] and [MENTION=7718083]Spaceminer[/MENTION], sorry for sounding annoyed, just more or less pissed at myself for not understanding it ?, I will say trying to use a root uninstall app doesn't remove anything that came with the phone, gonna see if I can in shell

---------- Post added at 07:29 PM ---------- Previous post was at 07:16 PM ----------

And as I said I would, 20 dollars (or technically 25 because the euro exchange rate so 25 usd to make 20 euro) has been sent to the dev [MENTION=1829889]vache[/MENTION]
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Spaceminer:
The system, oem, and vendor partitions are in the super partition, which is dynamic, and not writeable by the Linux kernel. Lineage OS recovery has a method for doing it though, so I'm working on making a way to do this with root. It's possible, but for the moment, improbable.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] ryanfraser38:
Hi guys, new to Motorola. Looking to get a relative the G8 power (I believe is the Sofiar model in the UK) will this work with this recovery and the other ROMs that are compatible with the normal Sofia model? Sorry I've only ever rooted OnePlus phones ?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Spaceminer:
This is where you want to be.

https://xdaforums.com/moto-g-power/development/sofiapr-twrp-3-4-0-0-t4128353
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] vache:
New TWRP Build :

Updated to TWRP 3.5 sources

Fix slot switching

Fix sideload

Fix touchscreen issues on some devices

twrp-3.5.0-0-rav-sofia.img

drive.google.com
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Neelark:
Hi

I've probably missed something obvious here, but where can I find the copy partitions zip?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Thiiaguiinho:
Esse TWRP é para o aparelho MOTO G8 Normal ?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Spaceminer:
You only need it if you've never had an OTA. It prevents you from bricking if you switch slots. Here's a copy.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Neelark:
Thanks very much. Can't be sure if my phone's had an OTA as it's second hand, so that's much appreciated!
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] DerSammler:
I have the Motorola Moto G8 normal with Android 10, Build Id: QPJS30.63-35-1-17. can I use the tutorial for my G8 normal?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Spaceminer:
Yes. The Moto G8 and Moto G Fast are essentially the exact same device.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] de_hammer:
Has anyone tried this on a variant other than the sofia or rav yet? I have the retus variant and if this would work for it that would be great.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Beetle84:
It works for all variants as far as i know, i use it for g8 and g8 power
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] KalenJr:
hello guys. This TWRP works on a device with Android 11?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Neelark:
I'd also like to know if TWRP will play well with Android 11 on this device, please, if anyone's tried the upgrade?

It's my main phone and don't want to risk anything at this stage!
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] DerSammler:
Is there a TWRP for Android 11? Unfortunately, the TWRP Sofia freezes when flashing.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Magnetox:
I'm on Android 11, the newest update. The twrp does not ask me for my pin when it starts up, and nothing works (access denied, not permitted, etc.).

I've tried:

twrp decrypt "my pin"

And this doesn't work either in TWRP terminal. It tells me my pin is wrong.

Any ideas?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] darko454:
Hi

Is this TWRP compatible with moto G Power XT2041-4

Is the method the same?

Thanks
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
So I managed to boot twrp 3.4.0 and root with magisk, I'm not sure about flashing it tho the file here boots to some purple theme recovery that I have never seen before I'd like to flash recovery and custom ROM to mine but till there is a developer that can help me through this then I cant risk experimenting on this phone I'm running the Feb release of oem 11 on mine
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
I wouldn't risk it
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
ive managed to get it flashed on stock ota 11 but it wont do anything it says i dont have permission to do anything
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Beetle84:
Its not compatible with stock 11 yet mate. Only stock 10, or android 11 custom roms
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
Any way I can go back to stock 10 from stock 11 I managed to get twrp to boot through fastboot command and use it to root with magisk but nothing else.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Beetle84:
Look in the ArrowOS thread. Theres a link to the Moto Flash Tool, also made by vache, the twrp dev. You can download and flash back to android 10 with that safely.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Beetle84:
@xxjonboyxx You can place downloaded firmware from lolinet, the moto firmware repository, in the firmware folder of the program once you have extracted it, or download through the program. Im just not sure if it will display only android 11 firmwares, thats why i mention lolinet.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
I have the newest 10 firmware from lolinet I had to use motorola rescue and flash tool to fix soft brick last night and it only allows for 11 I'll download vache tool tonight and I'll report back. For those on stock 11 I do have a simple method for root if anyone is interested lmk
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
Thank you so much for your help! You are a scholar and a gentleman.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] koyo:
@vache can you enable resizing system partition for people who might want to do things like flash gapps or nanodroid/microG in the future? Sometimes the system partition gets full and you are not able to flash them
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Jardel18ex:
downgrade thats work!? on the lenovo/motorola forum the admins said it was not possible to go back to 10.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] xxjonboyxx:
Read my previous post you have to get firmware from lolinet then use vache Moro flash tool not lolinetoem flash tool flash back to earliest 10
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] thatguy222:
Second this. Tough not being able to flash gapps.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] TestSample:
is there going to be a 3.5.1 update i really need android 11 support
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] jeremiah.wells:
hi jonboy --

Yes, so I am interested. I foolishly upgraded to Android 11 on my XT2045-3 (rav... yes?) and didn't understand that there is yet to be a TWRP image for that Android release (my BL is unlocked). I mananged to return my phone to build 10_QPJ30.131-61 and enabled dev options, etc. At the point where I am -- what's the simple method for root that you mentioned in this post?

Many, many thanks in advance.

- jeremiah
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Beetle84:
Boot or flash twrp if you are on a10, then flash the magisk zip mate, thats it.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] jeremiah.wells:
thank-you... I figured it out. The post I was referring to was a little mysterious and I wanted to make sure I had all my ducks in a row before committing to flashing software and all that. This phone is my first with A/B partitioning and I was feeling timid.

best... j
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] fakepepsilol:
So I need help, about a year ago I flashed and used TWRP and it worked excellent. So I kind of hard bricked the device that time but that isn't the point. I sent it to a repair shop where they reinstalled the system and now I can't get TWRP to work correctly. I unlocked the bootloader exactly the same as before, flashed TWRP right after the bootloader unlock and tried to flash magisk, but it asked me for a password/the data was encrypted even though the userdata partition was formatted during the unlock process. If I click cancel and try to wipe data trough TWRP, it just gives me an error "(operation not permitted)" does anyone know how I can fix it? (when I format the userdata partition as ext4 (was f2fe before) TWRP works but it won't boot.)

edit: I reformatted the data partition again using the stock recovery and now in TWRP it says that storage can't be mounted.

does all of this have something to do with the fact that I have android 11?

I also tried 'adb disable_verity' {saw that online) but it says that my phone has an USER build.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] fakepepsilol:
I'm getting some errors I can't seem to fix, about data decryption, is this twrp version working with Android 11?
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Kaliedra:
View attachment 5744015

Estou tendo problemas para identificar o nome da partição.

Não funciona: fastboot flash recovery, fastboot flash recovery_a e não funciona também fastboot flash recovery_b

me ajudem, preciso instalar este twrp
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] stipi30:
¿Hay alguna forma de rootear Android 11?

Tampoco se si saben quiero instalar lineageos 18.1 pero me dice que tengo que bajar a android 10 lo intenté de todos modos y no puedo, me podrían ayudar con esto? ya que con twrp android 11 no funciona para algunos de los frames a y b
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] stipi30:
Is there any way to root stock android 11?

I also don't know if you know I want to install lineageos 18.1 but it tells me that I have to downgrade to android 10 I tried anyway and I can't, could you help me with this? since with twrp android 11 does not work for some of the frames a and b
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] twrp:
I just wanted to thank all involved with this. I am retired now, and it's been some years since I've dabbled with altering my phone. I missed it but I have the time now. I had to read a great deal here on the forums to get back to a level of confidence that I understood the process. I'm now rooted and have TWRP installed on my Moto G Fast 2045-3. I am looking forward to trying out some roms and hopefully be able to delete some of the apps on my device.
[Moto G8 (Moto G Fast) ROMs, Kernels, Recoveries, &] Agusdom:
Hello, i have some problems with the official twrp, this twrp work on Moto Edge
[Realme 6 Questions & Answers] 82morrison:
the USB Default Config. in Development options is ignored by the System UI.

When connecting the device to PC, the phone asks for USB Behaviour (Charging only / File transfer / etc), even if the default USB behavior is set to File Transfer in Dev. Options.

tried with USB debugging "on" and "off".

- Model: RMX2001

- Build number: RMX2001_11_A.38

- realme UI version: v1.0

the idea is to add the possibility to transfer data (photos, videos, documents) to pc in case the screen gets broken...
[Realme 6 Questions & Answers] Aag64:
The system won't allow that due to security reasons because if that was possible then anyone would copy your phone's data
[Realme 6 Questions & Answers] 82morrison:
Understood, although I still have some questions about the whole thing:

- if the option was still available, one would require physical access to the device. What I believe most of us carry in the pocket or so.

- in case the display becomes unresponsive due to damage, how can the owner get to his data then?
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Sjll:
Lineage 15.1 for Xperia XZ [Stock based]​

#include <std_disclaimer.h>
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

About LineageOS

LineageOS is a free, community built, aftermarket firmware distribution of Android 9.x (Pie),

which is designed to increase performance and reliability over stock Android for your device.

All the source code for LineageOS is available in the LineageOS GitHub repo.

And if you would like to contribute to LineageOS, please visit our Gerrit Code Review.

Official LineageOS website : http://lineageos.org

About LineageOS Legal : http://lineageos.org/legal/

Important Information

1. This ROM has nothing related to ODM images! So you don't need to ask/install anything like that, just follow the instructions.

2. This ROM will never work with any versions of Google Camera (GCam)!

3. You need to flash Stock 41.3.A.2.157(Dual) or 192(Single) before flashing this ROM.

4. This ROM is suitable for dual and single model.

5. VoLTE is supported, but you need to enable it on stock firmware at first.

Downloads Links

LineageOS 15.1:

Unofficial: https://www.androidfilehost.com/?w=files&flid=316520

A special twrp recovery for this ROM:

https://www.androidfilehost.com/?fid=8889791610682924109

Google Applications (optional):

OpenGapps: http://opengapps.org/ (ARM64->Android 8.1->Pico, Nano or Micro)

Information: Flash the GApps before the first boot. If not, a clean flash is recommended.

Flashing and updating

LineageOS clean install:

Download the latest build of LineageOS ROM

Full wipe and factory reset (recommended / backup to make sure not to loose data)

Flash the LineageOS ROM zip from the Recovery

Flash the GApps to have the Google Applications (optional)

Every additional zip you want to flash (optional)

Reboot

LineageOS update/upgrade:

Download the latest build of LineageOS ROM

Wipe cache and dalvik cache

Flash the latest LineageOS ROM zip from the Recovery

Every additional zip you want to flash (optional)

Reboot

LineageOS addonsu for root access:

Download the addonsu for arm64: LineageOS Downloads / Extras

Flash the zip on a working Lineage installation (once)

Upon ROM updates, the addonsu is preserved

Reboot

About the builds:

Source: https://github.com/sony-msm8996

Issues and reports

Report issues only if you are using the ROM kernel

If an additional mod is installed, make sure it's unrelated, and mention it

Make sure the issue wasn't discussed earlier in the threads

Share a log of the error with CatLog for example

Also thanks to:

The LineageOS Team

The CyanogenMod Team

The SODP Team.

Chippa_a

Everyone involved in working and testing

Contributors

Sjll, Olivier

ROM OS Version: 8.1

ROM Kernel: Linux 3.18.x

Version Information

Status: Stable
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Sjll:
FEATURES AND ISSUES

- Boot: Ok
- Bluetooth: Ok
- WiFi: Ok
- WiFi Hotspot: Ok
- RIL - Phone - Data: Ok
- VoLTE: Ok
- GPS: Ok
- Camera: Ok
- Camcorder: Ok
- Lights: Ok
- MicroSD: Ok
- Accelerometer: Ok
- Compass: Ok
- Gyroscope: Ok
- QTI sensors: Ok
- Touchscreen: Ok
- FM Radio: NA
- Fingerprint: Ok
- Vibrator: Ok
- Microphone: Ok
- Audio & music: Ok
- Bluetooth audio: Ok
- NFC: Ok
- Kernel: Ok
- Graphics: Ok
- 3D Rendering: Ok
- Clock: Ok
- DRM: No test
- Offline Charging: No
- USB: Ok
- USB Tethering: Ok
- USB OTG: Ok
- Encryption: No
- SEPolicies: Permissive
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] jhon_bayu:
Next los16 based stock ?

I'm ready to test
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Kryshoft:
I think you should specify which version it is.

The post starts with android 9 thou its 8.1 ROM.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] elm_bacchus:
Also , it says that xperia xz dual rom! can we use for xperia xz single sim too!

Anyway, I use m-rom 2.3.1 on my xperia xz f8331 but rom is for dual sim.

I delete ads in m-rom 2.3.1 then flashed on my f8331. it works well.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] 2faraway2:
[MENTION=8321130]Sjll[/MENTION]:

Does this build support ExFat on External SDCards ? This was one of the main issues (for me) on your last build ... ;)
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] sohun:
Hello, is still necessary flash Stock 41.3.A.2.157 for F8331 before flashing this ROM ??

thanks for answer
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Sjll:
If I didn't write it is for dual or single, theni it is suitable for both.

Yup

Stock oreo FW is OK.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Kryshoft:
Hi, i just wanna report that after turning on the rom is really slow to detect the sim card and connect to the service, and sometimes light sensor just makes the screen dim for a second. Otherwise it is one of the best roms for the device.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] J.M.Siyath:
Bugs & lags

1. Second sim not detected (but los 16 detects both sim with same base rom).

2. Top speaker not working on loud speak call (very low sound on loudspeaker).

3. Cannot reduce volume while call (slider moving in UI but not functioning).

4. Better battery compare to other custom roms but not as stock (same apps consuming more than from stock).

5. Takes long time to goto TWRP.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Kryshoft:
Also on my device it randomly goes to lockscreen andturns off the screen.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Anty666:
Hi. For Dual-SIM model, need flash 157 or 192 ROM?
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] J.M.Siyath:
you can flash 157 or 192. it just need a stock oreo base rom.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] Anty666:
So both are good, as I understand it? Thank you.
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] makishart:
Hi! Thank you for this ROM. My phone is alive again... It works way more flawlessly so far than the latest stock ROM.

Not sure if I miss something from camera and screen quality. What I kind of miss is sony music and album apps witch I actually enjoyed using..

The only con is that I cannot encrypt my phone and use TWRP and do flashing without a format (is there a workaround for that?)

Also when I have fingerprint activated the power button scans all the time for fingerprints even if the phone is sleeping, without having to press it first.. So it scans every time there is a skin contact, leading on too many attempts or accidentally turned on..
[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] mirhl:
Best rom eva.

Though I had to use somewhat old gapps because when flashing the new ones the android/architecture version is reported mismatching.

Assuming the previous poster did try them and didn't have issues, I believe it was probably this to cause breakage (maybe it was a bad idea to ship the same custom recovery for both the Oreo and Pie roms?)

For the remainder this rom is rocking better than anything other (*touch wood*, I said the same about the SODP 15.1 version and it turned out crashy shortly after).

Fingerprint and also android auto works! This is a first ever, not just with AOSP roms but in general for the entire phone.

The only small defects are the the internal call speaker is pretty quiet and calls have to be answered from the notifications.

Sim detection could also be somewhat improved I guess (I get OP has a dual sim model, but there are no excuses not to ship the incredible universal patcher)
[P3300, MDA Compact III General] illundir:
Hello,

First of all I want to apologize for my bad English.

I'm from Germany ...

This forum since to be my last hope.

Few days ago I purchased the xda orbit on ebay.

But this was the case changed and the vibration motor not rebuilt.

So I have no Vibrationsfunktion, as the motor missing.

Can you tell me where to buy or order a replacement motor?

Thanks for your effort
[P3300, MDA Compact III General] illundir:
Hi @all,

ok the problem was solved.

I took an old Siemens M35 and put of the motor.

Then I put in the vibrationmotor in my xda orbit. All rigth it runns.http://xdaforums.com/images/smilies/smile.gif

bye
[Samsung Galaxy S10+ Themes, Apps, and Mods] m1606:
Hello there.

I am using a rooted OnePlus 7T and I really like the Samsung fingerprint scanner icon, so I was wondering if any one of you guys could extract it and put it here as a file?

This would be great since that would complete my OneUI setup.

I unfortunately don't know where the icon is located :(

Thanks in advance.
[Samsung Galaxy S10+ Themes, Apps, and Mods] therealroyston2:
I have found it
[Samsung Galaxy S10+ Themes, Apps, and Mods] therealroyston2:
I found the icon. What exactly do you need?
[Samsung Galaxy S10+ Themes, Apps, and Mods] mikishaaaa13:
Great! I just need the file, You can send it here.
[Samsung Galaxy S10+ Themes, Apps, and Mods] m1606:
Awesome! Could you send it here please?
[Samsung Galaxy S10+ Themes, Apps, and Mods] koxu516:
Hello, a bit off topic but how would you go about the reverse of this? I really like the fingerprint from OnePlus and would like to change mine
[Samsung Galaxy S10+ Themes, Apps, and Mods] m1606:
Here it is! I'm so sorry I am extremely late, but hopefully you still want it. 😅
[Samsung Galaxy S10+ Themes, Apps, and Mods] m1606:
I also have other colors of the same icon. I'll send them as well if you want a different color.
[Android Q&A, Help & Troubleshooting] go0:
Need advice. My goal is to flash GSI ROM onto this thing. The treble app says it is supported. (type A)

However, the usual commands for unlocking bootloader seem to indicate it is either already unlocked but not telling me or locked and not unlockable..?

This is a unisoc SC9863a

baseband: FM_BASE_18B_W19.08.1_P11 | SC9863a_modem | 04-26-2019 MARLIN2_17A_RLS1_W19.17.7 | sharkl3_cm4 | 04-28-2019

kernel: 4.4.147+ (20190703)

build number: PPR1 180610.011

android: 9 pie

WIKO/W-V800-EEA/W-V800

9/PPR1.180610.011/08018

unrooted > MTK-su and several oneroot options not working (although they might on oreo if I can find the factory rom)

OEM unlocking enabled in developer options

In fastboot you get:

fastboot flashing unlock > FAILED (remote: Not implemet.)

fastboot oem unlock > FAILED (remote: unknown cmd.)

fastboot oem get_unlock_data > FAILED (remote: unknown cmd.)

fastboot flashing unlock_critical > FAILED (remote: Not implement.)

I tried following this process: (from here (Mod Edit: Link removed)

./fastboot oem get_identifier_token

./signidentifier_unlockbootloader.sh XXXXXXXXXXXXXXX rsa4096_vbmeta.pem signature.bin

./fastboot flashing unlock_bootloader signature.bin

last command returns with: "downloading 'unlock_message'...

OKAY [ 0.001s]

unlocking bootloader...

FAILED (remote: Unlock bootloader fail.)

finished. total time: 0.104s"

additional questions:

Can I just flash a certain recovery somehow?

Do I have to try something complicated like this: (Mod Edit: Link removed)
[Android Q&A, Help & Troubleshooting] anonym6x6:
Have you got root on your view 3 lite?
[Android Q&A, Help & Troubleshooting] Deleted member 1890170:
Indicates the FastBoot implemented in device's bootloader doesn't support these subcommands. Obviously OEM/Carrier doesn't want that device's bootloader gets unlocked.
[Android Q&A, Help & Troubleshooting] go0:
If oreo exists for this and you know where to get it, let me know and I'll try.

If I can get root, what would you recommend trying to unlock bootloader?

OK...