PLZ DOWNGRADE FRMWARE

Microsoft Windows [Version 10.0.18363.778]
(c) 2019 Microsoft Corporation. All rights reserved.


C:\Program Files\Minimal ADB and Fastboot>fastboot oem get-product-model
...
(bootloader) JSN-L42
OKAY [ 0.013s]
finished. total time: 0.014s


C:\Program Files\Minimal ADB and Fastboot>fastboot getvar vendorciountry
getvar:vendorciountry FAILED (remote: Command not allowed)
finished. total time: 0.016s


C:\Program Files\Minimal ADB and Fastboot>fastboot getvar vendorcountry
vendorcountry: hw/in
finished. total time: 0.013s


C:\Program Files\Minimal ADB and Fastboot>fastboot oem get-build-number
...
(bootloader) :JSN-L42 10.0.0.175(C675E14R1P1)
OKAY [ 0.015s]
finished. total time: 0.016s


C:\Program Files\Minimal ADB and Fastboot>fastbootgetvar rescue_enter_recovery
'fastbootgetvar' is not recognized as an internal or external command,
operable program or batch file.


C:\Program Files\Minimal ADB and Fastboot>fastboot getvar rescue_enter_recovery
getvar:rescue_enter_recovery FAILED (remote: FAIL:need all image flashed!)
finished. total time: 0.026s


C:\Program Files\Minimal ADB and Fastboot>fastboot oem oeminforead-SYSTEM_VERSION
...
(bootloader) :JSN-L42 9.0.1.172(C675E4)
OKAY [ 0.015s]
finished. total time: 0.017s


PLZ DOWNGRADE FRMWARE