[Moto G 2015 Q&A, Help & Troubleshooting] DariusDaro:
Unlock The Motorola G (Moto G) Bootloader! doesnt work. Flash doesnt work.

ok This is what I did.

Go Motorola Moto G 3rd Gen. Android 5.0.1, than I download the KingRoot App, to uninstall some bloadware apps. was fine. than few days ago, I updated Motorola to Android 6. Next day I watched some youtube videos and it went to hard reset mode. Since than I can do nothing. Cant unlock the boot loader even with the code from Motorola. Cant flash it just nothing. Im out of ideas. Would like to take a hammer and just smash it. Please someone help me. And I cant turn on the developer mode. take a look on the error which I get, over and over and over again.

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>adb reboot-bootloader

error: device '(null)' not found

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot devices

ZY2225JZ7Z fastboot

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>adb reboot-bootloader

error: device '(null)' not found

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot oem fb_mode_set

...

OKAY [ 0.130s]

finished. total time: 0.140s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash partition gp

t.bin

target reported max download size of 268435456 bytes

sending 'partition' (32 KB)...

OKAY [ 0.090s]

writing 'partition'...

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.600s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash bootloader b

ootloader.img

target reported max download size of 268435456 bytes

sending 'bootloader' (2546 KB)...

OKAY [ 0.270s]

writing 'bootloader'...

(bootloader) flashing sbl1 ...

(bootloader) flashing aboot ...

(bootloader) flashing tz ...

(bootloader) flashing hyp ...

(bootloader) flashing rpm ...

OKAY [ 1.850s]

finished. total time: 2.130s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash bootloader b

ootloader.img

target reported max download size of 268435456 bytes

sending 'bootloader' (2546 KB)...

OKAY [ 0.250s]

writing 'bootloader'...

(bootloader) flashing sbl1 ...

(bootloader) flashing aboot ...

(bootloader) flashing tz ...

(bootloader) flashing hyp ...

(bootloader) flashing rpm ...

OKAY [ 1.890s]

finished. total time: 2.150s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash logo logo.bi

n

target reported max download size of 268435456 bytes

sending 'logo' (917 KB)...

OKAY [ 0.220s]

writing 'logo'...

OKAY [ 0.180s]

finished. total time: 0.410s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash boot boot.im

g

target reported max download size of 268435456 bytes

sending 'boot' (16384 KB)...

OKAY [ 0.680s]

writing 'boot'...

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 1.350s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash recovery rec

overy.img

target reported max download size of 268435456 bytes

sending 'recovery' (16484 KB)...

OKAY [ 0.670s]

writing 'recovery'...

OKAY [ 1.410s]

finished. total time: 2.090s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.0

target reported max download size of 268435456 bytes

sending 'system' (261561 KB)...

OKAY [ 8.290s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 8.970s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.1

target reported max download size of 268435456 bytes

sending 'system' (262142 KB)...

OKAY [ 8.310s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 8.440s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.2

target reported max download size of 268435456 bytes

sending 'system' (262140 KB)...

OKAY [ 8.310s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 8.470s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.3

target reported max download size of 268435456 bytes

sending 'system' (240126 KB)...

OKAY [ 7.620s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 7.710s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.4

target reported max download size of 268435456 bytes

sending 'system' (242526 KB)...

OKAY [ 7.700s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 7.820s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash system syste

m.img_sparsechunk.5

target reported max download size of 268435456 bytes

sending 'system' (121656 KB)...

OKAY [ 3.910s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 4.030s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash modem NON-HL

OS.bin

< waiting for device >

target reported max download size of 268435456 bytes

sending 'modem' (36932 KB)...

OKAY [ 1.170s]

writing 'modem'...

OKAY [ 2.430s]

finished. total time: 3.620s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot erase modemst1

erasing 'modemst1'...

OKAY [ 0.060s]

finished. total time: 0.070s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot erase modemst2

erasing 'modemst2'...

OKAY [ 0.030s]

finished. total time: 0.030s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot flash fsg fsg.mbn

target reported max download size of 268435456 bytes

sending 'fsg' (1923 KB)...

OKAY [ 0.250s]

writing 'fsg'...

OKAY [ 0.170s]

finished. total time: 0.420s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot erase cache

erasing 'cache'...

OKAY [ 0.130s]

finished. total time: 0.140s

C:\Users\Nikon\Desktop\adb-fastboot-latest_win_linux>fastboot reboot

rebooting...

Please someone help :rolleyes: