[Moto G Q&A, Help & Troubleshooting] angelgzg:
He shows me an error installing the gpt.bin and motoboot.img fastboot and the phone shows the version downgrade for tz

Here the log (And do not pass the warning)

C:\Minimal ADB and Fastboot>mfastboot flash partition gpt.bin

target max-sparse-size: 256MB

sending 'partition' (32 KB)...

OKAY [ 0.019s]

writing 'partition'...

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.354s

C:\Minimal ADB and Fastboot>mfastboot flash motoboot motoboot.img

target max-sparse-size: 256MB

sending 'motoboot' (1940 KB)...

OKAY [ 0.097s]

writing 'motoboot'...

(bootloader) Motoboot: Preflash validation for tz

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.391s

C:\Minimal ADB and Fastboot>mfastboot flash logo logo.bin

target max-sparse-size: 256MB

sending 'logo' (1060 KB)...

OKAY [ 0.085s]

writing 'logo'...

OKAY [ 0.064s]

finished. total time: 0.152s

C:\Minimal ADB and Fastboot>mfastboot flash boot boot.img

target max-sparse-size: 256MB

sending 'boot' (10240 KB)...

OKAY [ 0.396s]

writing 'boot'...

OKAY [ 0.638s]

finished. total time: 1.036s

C:\Minimal ADB and Fastboot>mfastboot flash recovery recovery.img

target max-sparse-size: 256MB

sending 'recovery' (10240 KB)...

OKAY [ 0.408s]

writing 'recovery'...

OKAY [ 0.644s]

finished. total time: 1.055s

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk.0

target max-sparse-size: 256MB

error: cannot load 'system.img_sparsechunk.0': No error

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk.1

target max-sparse-size: 256MB

error: cannot load 'system.img_sparsechunk.1': No error

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk.2

target max-sparse-size: 256MB

error: cannot load 'system.img_sparsechunk.2': No error

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk1

target max-sparse-size: 256MB

sending 'system' (260693 KB)...

OKAY [ 8.708s]

writing 'system'...

OKAY [ 8.639s]

finished. total time: 17.356s

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk2

target max-sparse-size: 256MB

sending 'system' (261168 KB)...

OKAY [ 8.702s]

writing 'system'...

OKAY [ 7.434s]

finished. total time: 16.138s

C:\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk3

target max-sparse-size: 256MB

sending 'system' (219321 KB)...

OKAY [ 7.304s]

writing 'system'...

OKAY [ 15.153s]

finished. total time: 22.460s

C:\Minimal ADB and Fastboot>mfastboot flash modem NON-HLOS.bin

target max-sparse-size: 256MB

sending 'modem' (47152 KB)...

OKAY [ 1.626s]

writing 'modem'...

OKAY [ 0.764s]

finished. total time: 2.392s

C:\Minimal ADB and Fastboot>mfastboot erase modemst1

erasing 'modemst1'...

OKAY [ 0.012s]

finished. total time: 0.013s

C:\Minimal ADB and Fastboot>mfastboot erase modemst2

erasing 'modemst2'...

OKAY [ 0.029s]

finished. total time: 0.030s

C:\Minimal ADB and Fastboot>mfastboot flash fsg fsg.mbn

target max-sparse-size: 256MB

sending 'fsg' (717 KB)...

OKAY [ 0.108s]

writing 'fsg'...

OKAY [ 3.190s]

finished. total time: 3.299s

C:\Minimal ADB and Fastboot>mfastboot erase cache

erasing 'cache'...

OKAY [ 0.016s]

finished. total time: 0.017s

C:\Minimal ADB and Fastboot>mfastboot erase userdata

erasing 'userdata'...

OKAY [ 0.040s]

finished. total time: 0.041s

C:\Minimal ADB and Fastboot>mfastboot reboot

rebooting...

finished. total time: 0.002s

C:\Minimal ADB and Fastboot>