[Moto G Q&A, Help & Troubleshooting] Zeffi:
After I did all the steps the phone reboots into the same broken system.

I dont if it'll help, but here is the log:

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

target max-sparse-size: 256MB

sending 'motoboot' (1953 KB)...

OKAY [ 0.105s]

writing 'motoboot'...

(bootloader) flashing tz ...

(bootloader) flashing rpm ...

(bootloader) flashing sdi ...

(bootloader) flashing aboot ...

(bootloader) flashing sbl1 ...

OKAY [ 1.095s]

finished. total time: 1.200s

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

target max-sparse-size: 256MB

sending 'partition' (32 KB)...

OKAY [ 0.033s]

writing 'partition'...

(bootloader) This may take a few seconds, if a

(bootloader) different partition table is being

(bootloader) flashed since we need to backup

(bootloader) and restore a few partitions

(bootloader) Flashing primary GPT image...

(bootloader) Flashing backup GPT image...

OKAY [ 0.365s]

finished. total time: 0.400s

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

target max-sparse-size: 256MB

sending 'logo' (295 KB)...

OKAY [ 0.048s]

writing 'logo'...

OKAY [ 0.047s]

finished. total time: 0.095s

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

target max-sparse-size: 256MB

sending 'boot' (10240 KB)...

OKAY [ 0.469s]

writing 'boot'...

OKAY [ 0.639s]

finished. total time: 1.111s

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

target max-sparse-size: 256MB

sending 'recovery' (10240 KB)...

OKAY [ 0.484s]

writing 'recovery'...

OKAY [ 0.642s]

finished. total time: 1.142s

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

target max-sparse-size: 256MB

sending 'system' (257535 KB)...

OKAY [ 10.490s]

writing 'system'...

OKAY [ 8.213s]

finished. total time: 18.718s

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

target max-sparse-size: 256MB

sending 'system' (256925 KB)...

OKAY [ 10.088s]

writing 'system'...

OKAY [ 8.055s]

finished. total time: 18.159s

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

target max-sparse-size: 256MB

sending 'system' (256980 KB)...

OKAY [ 10.040s]

writing 'system'...

OKAY [ 7.986s]

finished. total time: 18.026s

C:\Users\Rafael\Desktop\Minimal ADB and Fastboot>mfastboot flash system system.img_sparsechunk.3

target max-sparse-size: 256MB

sending 'system' (175936 KB)...

OKAY [ 7.080s]

writing 'system'...

OKAY [ 6.316s]

finished. total time: 13.412s

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

target max-sparse-size: 256MB

sending 'modem' (49376 KB)...

OKAY [ 2.008s]

writing 'modem'...

OKAY [ 0.828s]

finished. total time: 2.852s

C:\Users\Rafael\Desktop\Minimal ADB and Fastboot>mfastboot erase modemst1

erasing 'modemst1'...

OKAY [ 0.015s]

finished. total time: 0.017s

C:\Users\Rafael\Desktop\Minimal ADB and Fastboot>mfastboot erase modemst2

erasing 'modemst2'...

OKAY [ 0.008s]

finished. total time: 0.008s

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

target max-sparse-size: 256MB

sending 'fsg' (103 KB)...

OKAY [ 0.079s]

writing 'fsg'...

OKAY [ 3.174s]

finished. total time: 3.272s

C:\Users\Rafael\Desktop\Minimal ADB and Fastboot>mfastboot erase cache

erasing 'cache'...

OKAY [ 0.031s]

finished. total time: 0.031s

C:\Users\Rafael\Desktop\Minimal ADB and Fastboot>pause

Press any key to continue . . .