[X Style (Pure) Android Development] Motoven:
My MXPE stay in bootloader for 2 hours.

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash partition gpt.bin

target reported max download size of 536870912 bytes

sending 'partition' (32 KB)...

OKAY [ 0.003s]

writing 'partition'...

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.366s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash bootloader bootloader.img

target reported max download size of 536870912 bytes

sending 'bootloader' (2699 KB)...

OKAY [ 0.063s]

writing 'bootloader'...

(bootloader) flashing aboot ...

(bootloader) flashing sbl1 ...

(bootloader) flashing pmic ...

(bootloader) flashing rpm ...

(bootloader) flashing tz ...

(bootloader) flashing hyp ...

(bootloader) flashing sdi ...

OKAY [ 1.841s]

finished. total time: 1.905s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash logo logo.bin

target reported max download size of 536870912 bytes

sending 'logo' (3687 KB)...

OKAY [ 0.082s]

writing 'logo'...

OKAY [ 0.072s]

finished. total time: 0.158s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash boot boot.img

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 0.932s]

writing 'boot'...

OKAY [ 0.726s]

finished. total time: 1.660s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash recovery recovery.img

target reported max download size of 536870912 bytes

sending 'recovery' (41040 KB)...

OKAY [ 0.932s]

writing 'recovery'...

OKAY [ 0.684s]

finished. total time: 1.617s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.0

target reported max download size of 536870912 bytes

sending 'system' (260639 KB)...

OKAY [ 5.613s]

writing 'system'...

OKAY [ 4.729s]

finished. total time: 10.347s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.1

target reported max download size of 536870912 bytes

sending 'system' (248976 KB)...

OKAY [ 5.406s]

writing 'system'...

OKAY [ 4.750s]

finished. total time: 10.159s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.2

target reported max download size of 536870912 bytes

sending 'system' (256346 KB)...

OKAY [ 5.810s]

writing 'system'...

OKAY [ 4.338s]

finished. total time: 10.152s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.3

target reported max download size of 536870912 bytes

sending 'system' (254876 KB)...

OKAY [ 5.498s]

writing 'system'...

OKAY [ 4.547s]

finished. total time: 10.048s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.4

target reported max download size of 536870912 bytes

sending 'system' (255753 KB)...

OKAY [ 5.550s]

writing 'system'...

OKAY [ 4.557s]

finished. total time: 10.109s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.5

target reported max download size of 536870912 bytes

sending 'system' (254398 KB)...

OKAY [ 5.499s]

writing 'system'...

OKAY [ 4.357s]

finished. total time: 9.867s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.6

target reported max download size of 536870912 bytes

sending 'system' (230572 KB)...

OKAY [ 5.024s]

writing 'system'...

OKAY [ 3.790s]

finished. total time: 8.817s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.7

target reported max download size of 536870912 bytes

sending 'system' (255198 KB)...

OKAY [ 5.559s]

writing 'system'...

OKAY [ 4.425s]

finished. total time: 9.986s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.8

target reported max download size of 536870912 bytes

sending 'system' (63484 KB)...

OKAY [ 1.365s]

writing 'system'...

OKAY [ 1.083s]

finished. total time: 2.452s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash modem NON-HLOS.bin

target reported max download size of 536870912 bytes

sending 'modem' (41686 KB)...

OKAY [ 0.896s]

writing 'modem'...

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.922s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot erase modemst1

erasing 'modemst1'...

OKAY [ 0.006s]

finished. total time: 0.007s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot erase modemst2

erasing 'modemst2'...

OKAY [ 0.006s]

finished. total time: 0.008s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash fsg fsg.mbn

target reported max download size of 536870912 bytes

sending 'fsg' (1356 KB)...

OKAY [ 0.032s]

writing 'fsg'...

OKAY [ 0.040s]

finished. total time: 0.074s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot flash bluetooth BTFM.bin

target reported max download size of 536870912 bytes

sending 'bluetooth' (1295 KB)...

OKAY [ 0.032s]

writing 'bluetooth'...

OKAY [ 0.046s]

finished. total time: 0.079s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot erase cache

erasing 'cache'...

OKAY [ 0.016s]

finished. total time: 0.016s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot erase userdata

erasing 'userdata'...

OKAY [ 0.088s]

finished. total time: 0.089s

C:\Users\Familia\Desktop\Carpetas\Zps\XT1575_CLARK_RETUS_6.0_MPHS24.49-18-4_cid9_subsidy-DEFAULT_CFC.xml>fastboot reboot

Pleaaaase help me.