[Moto E5 Guides, News, & Discussion] daddyunlocker:
my phone is unlocked because after unlock with siga tool sim was working but phone was giving error like com.motorola.has.stopped etc so i try to flash but now it is giving error ( startup failed)

your device did't start successfully .

flash log

Microsoft Windows [Version 10.0.17134.407]

(c) 2018 Microsoft Corporation. All rights reserved.

C:\Users\Rose4u86>cd..

C:\Users>cd..

C:\>cd.. C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml

The filename, directory name, or volume label syntax is incorrect.

C:\>fastboot oem fb_mode_set

'fastboot' is not recognized as an internal or external command,

operable program or batch file.

C:\>cd C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot oem fb_mode_set

...

OKAY [ 0.004s]

finished. total time: 0.008s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash partition gpt.bin

target reported max download size of 245366784 bytes

sending 'partition' (45 KB)...

OKAY [ 0.012s]

writing 'partition'...

(bootloader) Validating 'gpt.default.xml'

(bootloader) Security version downgrade

(bootloader) Image primary_gpt failed validation

(bootloader) Preflash validation failed

(bootloader) Cancelling 'gpt.default.xml'

FAILED (remote failure)

finished. total time: 0.104s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash dsp adspso.bin

target reported max download size of 245366784 bytes

sending 'dsp' (16384 KB)...

OKAY [ 0.560s]

writing 'dsp'...

OKAY [ 0.472s]

finished. total time: 1.036s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash bootloader bootloader.img

target reported max download size of 245366784 bytes

sending 'bootloader' (7483 KB)...

OKAY [ 0.276s]

writing 'bootloader'...

(bootloader) Validating 'bootloader.default.xml'

(bootloader) Committing 'bootloader.default.xml'

(bootloader) - flashing 'emmc_appsboot.mbn' to 'aboot'

(bootloader) - flashing 'rpm.mbn' to 'rpm'

(bootloader) - flashing 'tz.mbn' to 'tz'

(bootloader) - flashing 'devcfg.mbn' to 'devcfg'

(bootloader) - flashing 'cmnlib.mbn' to 'cmnlib'

(bootloader) - flashing 'cmnlib64.mbn' to 'cmnlib64'

(bootloader) - flashing 'keymaster.mbn' to 'keymaster'

(bootloader) - flashing 'prov.mbn' to 'prov'

(bootloader) - flashing 'sbl1.mbn' to 'sbl1'

OKAY [ 0.904s]

finished. total time: 1.184s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash recovery recovery.img

target reported max download size of 245366784 bytes

sending 'recovery' (24576 KB)...

OKAY [ 1.280s]

writing 'recovery'...

(bootloader) Security version downgrade

(bootloader) Image recovery failed validation

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 1.526s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash logo logo.bin

target reported max download size of 245366784 bytes

sending 'logo' (721 KB)...

OKAY [ 0.028s]

writing 'logo'...

OKAY [ 0.128s]

finished. total time: 0.160s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash boot boot.img

target reported max download size of 245366784 bytes

sending 'boot' (16384 KB)...

OKAY [ 0.791s]

writing 'boot'...

(bootloader) Security version downgrade

(bootloader) Image boot failed validation

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 0.968s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash modem NON-HLOS.bin

target reported max download size of 245366784 bytes

sending 'modem' (68994 KB)...

OKAY [ 3.317s]

writing 'modem'...

OKAY [ 1.731s]

finished. total time: 5.047s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot erase modemst1

erasing 'modemst1'...

OKAY [ 0.060s]

finished. total time: 0.060s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot erase modemst2

erasing 'modemst2'...

OKAY [ 0.055s]

finished. total time: 0.055s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash fsg fsg.mbn

target reported max download size of 245366784 bytes

sending 'fsg' (5456 KB)...

OKAY [ 0.270s]

writing 'fsg'...

OKAY [ 0.236s]

finished. total time: 0.509s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.0

target reported max download size of 245366784 bytes

sending 'system' (239071 KB)...

OKAY [ 11.637s]

writing 'system'...

(bootloader) Security version downgrade

(bootloader) Image s failed validation

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 11.721s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>fastboot flash system system.img_sparsechunk.1

target reported max download size of 245366784 bytes

sending 'system' (239613 KB)...

OKAY [ 11.454s]

writing 'system'...

(bootloader) Invalid signed image

(bootloader) Preflash validation failed

FAILED (remote failure)

finished. total time: 11.466s

C:\Users\Rose4u86\Downloads\XT1920-15_PETTYL_TESCOGB_8.1.0_OPG28.54-19_cid50_subsidy-TESCOGB_regulatory-DEFAULT_CFC.xml>