Unable to flash with fastboot - Nokia 6.2 Questions & Answers

Hello there,
I just got a Nokia 6.2 to use for my app reverse-engineering/development needs, but I would need to root it.
Recovery is just saying "no command" and fastboot does not want to flash recovery.
Code:
C:\Users\<user>\Downloads\platform-tools_r29.0.5-windows\platform-tools>fastboot flash recovery twrp-3.3.1-PL2.img
Sending 'recovery' (38736 KB) FAILED (remote: 'unknown command')
fastboot: error: Command failed
Apperently the device's flashing functionality appears to be encrypted.
per the how-to at https://www.androidweblog.com/nokia-6-2-ta-1198-root-install-twrp-recovery/:
Code:
C:\Users\<username>\Downloads\platform-tools_r29.0.5-windows\platform-tools>fastboot oem unlock-go
FAILED (remote: 'Failed to unlock, decrypt failed!')
fastboot: error: Command failed
Device state is listed as unlocked.

Try
HTML:
fastboot flashing unlock

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""//
C:\Users\ASUS\Desktop\platform-tools>fastboot boot C:\Users\ASUS\Desktop\MiUi-Wolf-DC.img
Sending 'boot.img' (43024 KB) FAILED (Write to device failed (Too many links))
fastboot: error: Command failed
//""
and
//
C:\Users\ASUS\Desktop\platform-tools>fastboot boot twrp.img
Sending 'boot.img' (38924 KB) FAILED (Write to device failed (Invalid argument))
fastboot: error: Command failed
//
this error occurs when ever I want to boot trrough twrp or any custom recovery

Unable to install twrp

getting FAILED (remote: unknown command) after using fastboot boot <recovery_filename>.img
Fixed it with msmdownloadtool

TWRP flash not allowed

I'm trying to flash TWRP on my Pixel 3. I have bootloader unlocked and made sure several times all my settings were correct. Any help on if this could be caused by missing drivers or something? i'm new to custom ROMs. Thanks
here is what i get:
.\fastboot flash recovery twrp.img
Sending 'recovery' (65536 KB) OKAY [ 1.645s]
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
Run
Code:
fastboot getvar all
and check for bootloader status: locked or unlocked?

FAILED (remote: 'Download is not allowed on locked devices')

i wnat to root https://www.xda-developers.com/root/
when i try
D:\platform-tools>fastboot flash boot D:\platform-tools/magisk_patched-25100_1VYTU.img
it show
Code:
Sending 'boot' (98304 KB) FAILED (remote: 'Download is not allowed on locked devices')
fastboot: error: Command failed
i also try
fastboot oem unlock
it show
Code:
FAILED (remote: 'Unable to open fastboot HAL')
fastboot: error: Command failed
what should i do ??
chatofking said:
i wnat to root https://www.xda-developers.com/root/
when i try
D:\platform-tools>fastboot flash boot D:\platform-tools/magisk_patched-25100_1VYTU.img
it show
Code:
Sending 'boot' (98304 KB) FAILED (remote: 'Download is not allowed on locked devices')
fastboot: error: Command failed
Click to expand...
Click to collapse
Rename the patched boot.img to "boot.img", then place the patched .img in your fastboot folder on PC then type:
fastboot flash boot boot.img
When you place the file in your fastboot folder, you don't need to include the path to the file in the command, it automatically looks for the file in the fastboot folder by default when you do not enter a path. Renaming the file to "boot.img" isn't necessarily required, but, it does simplify things for fastboot and makes the command easier to remember and type.
The same applies if you want to flash a system.img, recovery.img, etc.. Just change the name of the file to "system.img" or "recovery.img" and place it/them in your fastboot folder and it simplifies your commands to:
fastboot flash system system.img
And
fastboot flash recovery recovery.img
Also, try this for the failed command
FAILED (remote: Unable to open fastboot HAL): Unlock Bootloader Fix
In this tutorial, we will show you the steps to fix the FAILED (remote: Unable to open fastboot HAL) error when unlocking the bootloader.
www.droidwin.com
now i got same message
D:\platform-tools>fastboot flash boot boot.img
Code:
Sending 'boot' (98304 KB) FAILED (remote: 'Download is not allowed on locked devices')
fastboot: error: Command failed
Droidriven said:
Also, try this for the failed command
FAILED (remote: Unable to open fastboot HAL): Unlock Bootloader Fix
In this tutorial, we will show you the steps to fix the FAILED (remote: Unable to open fastboot HAL) error when unlocking the bootloader.
www.droidwin.com
Click to expand...
Click to collapse
im already try this verify cmd location, install fastboot driver & boot fastboot mode nothing change.
Code:
D:\platform-tools>fastboot oem unlock
FAILED (remote: 'Unable to open fastboot HAL')
fastboot: error: Command failed
what should i do ??
chatofking said:
i wnat to root https://www.xda-developers.com/root/
when i try
D:\platform-tools>fastboot flash boot D:\platform-tools/magisk_patched-25100_1VYTU.img
it show
Code:
Sending 'boot' (98304 KB) FAILED (remote: 'Download is not allowed on locked devices')
fastboot: error: Command failed
Click to expand...
Click to collapse
You've to unlock device's bootloader. Hence 1st of all if you want to manage the / operate on the bootloader you have to move device into fastboot mode and then run on device if it's launched 2015 or later
Code:
fastboot flashing unlock
[code]
instead of the outdated
[code]
fastboot oem-unlock
xXx yYy said:
You've to unlock device's bootloader. Hence 1st of all if you want to manage the / operate on the bootloader you have to move device into fastboot mode and then run on device if it's launched 2015 or later
Code:
fastboot flashing unlock
[code]
instead of the outdated
[code]
fastboot oem-unlock
Click to expand...
Click to collapse
when i try
D:\platform-tools>fastboot flashing unlock
it show
Code:
FAILED (remote: 'Unrecognized command flashing unlock')
fastboot: error: Command failed
i use https://developer.android.com/studio/releases/platform-tools
what should i do ??
The platform tools you actually use are meant to be used with Google devices only.
Use the Android USB-tools provided by your device's manufacturer.
xXx yYy said:
The platform tools you actually use are meant to be used with Google devices only.
Use the Android USB-tools provided by your device's manufacturer.
Click to expand...
Click to collapse
i use mtp driver
update Portable Devices to MTP USB Device
but when i enter fastboot mode
it become Android Device Android Bootloader Interface.
where is extracted the driver package folder ?? https://www.xda-developers.com/download-android-usb-drivers/
I'm having simular issue with my specter 8 tablet. I unlock the bootloader and give me the normal prompt. I go back do everything else and will execute reboot devices ect. However won't flash patch_boot.img brings up message
FAILED (remote: 'Download is not allowed on locked devices').

Huawei Mediapad T5 stuck in eRecovery

Hi everyone,
i have a Mediapad T5 that it's unable to boot into OS. if i try to turn it on the tablet goes directly into the huawei eRecovery, and trying all the factory solutions (download and update, factory reset or anything else), just won't help and the tablet just goes back to the recovery.
I tried to use the HiSuite from huawei but once i got it in fastboot&rescue mode i receive the messagge that the device it's not supported.
Also while i'm here i also tried to unlock the bootloader but both PHONE and FRP are locked, so i just get errors.
I tried
fastboot flashing unlock
(bootloader) Necessary to unlock FRP!
(bootloader) Navigate to Developer options, and enable "OEM unlock"!
FAILED (remote: 'Command not allowed')
fastboot: error: Command failed
fastboot oem frp-unlock
FAILED (remote: 'oem_frp_check_password failed! Error = -1')
fastboot: error: Command failed
fastboot oem frp-erase
FAILED (remote: 'Command not allowed!')
fastboot: error: Command failed
PS C:\platform-tools>
Obviously i can't get into the system and enable the OEM unlock since the tablet doesn't boot into it.
Is there anything else i can try?

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