Cannot Downgrade from 11 to 10

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K-BOX2022

Senior Member
Dec 31, 2021
131
11
Smart Watches
Samsung Galaxy Tab S2
Hi. I have a problem flashing my Moto g8 power XT2041-3. The problem occurs when flashing the bootloader.
Writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) Preflash validation failed
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote failure)

And with another one this appears:

Sending 'bootloader' (14204 KB) OKAY [ 0.352s].
Writing 'bootloader' (bootloader) Validating 'bootloader.default.xml'
(bootloader) Preflash validation failed
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote: '')

I tried the repair methods I found on XDA (Reverting to Stock, How to downgrade Android 11 to 10) but none of them helped. I have tried almost all Firmware with all the versions there are but without success. That's why I'm asking a lot for help because I don't know what to do next.
 

sd_shadow

Recognized Contributor / XDA Welcome Team
Sep 21, 2011
18,592
2
9,176
South Dakota
goo.gl
Motorola Droid X
Amazon Fire
Hi. I have a problem flashing my Moto g8 power XT2041-3. The problem occurs when flashing the bootloader.
Writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) Preflash validation failed
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote failure)

And with another one this appears:

Sending 'bootloader' (14204 KB) OKAY [ 0.352s].
Writing 'bootloader' (bootloader) Validating 'bootloader.default.xml'
(bootloader) Preflash validation failed
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote: '')

I tried the repair methods I found on XDA (Reverting to Stock, How to downgrade Android 11 to 10) but none of them helped. I have tried almost all Firmware with all the versions there are but without success. That's why I'm asking a lot for help because I don't know what to do next.
What does Getvar all say? Remove imei before posting.
Code:
fastboot getvar all