trata-se de um moto g5S 1802 (sanders)
C:\Users\Sophia\Desktop\recuperação>fastboot flash partition gpt.bin
target reported max download size of 534773760 bytes
sending 'partition' (45 KB)...
OKAY [ 0.029s]
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: 0.121s
C:\Users\Sophia\Desktop\recuperação>fastboot flash bootloader bootloader.img
target reported max download size of 534773760 bytes
sending 'bootloader' (5115 KB)...
OKAY [ 0.168s]
writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) Committing 'bootloader.default.xml'
(bootloader) - flashing 'emmc_appsboot.mbn' to 'aboot'
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition aboot
FAILED (remote failure)
finished. total time: 0.405s
C:\Users\Sophia\Desktop\recuperação>fastboot flash logo logo.bin
target reported max download size of 534773760 bytes
sending 'logo' (2192 KB)...
OKAY [ 0.076s]
writing 'logo'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition logo
FAILED (remote failure)
finished. total time: 0.106s
C:\Users\Sophia\Desktop\recuperação>fastboot flash boot boot.img
target reported max download size of 534773760 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.520s]
writing 'boot'...
(bootloader) Image boot failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.720s
C:\Users\Sophia\Desktop\recuperação>fastboot flash recovery recovery.img
target reported max download size of 534773760 bytes
sending 'recovery' (20580 KB)...
OKAY [ 0.637s]
writing 'recovery'...
(bootloader) Image recovery failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.879s
C:\Users\Sophia\Desktop\recuperação>fastboot flash dsp adspso.bin
target reported max download size of 534773760 bytes
sending 'dsp' (16384 KB)...
OKAY [ 0.500s]
writing 'dsp'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition dsp
FAILED (remote failure)
finished. total time: 0.541s
C:\Users\Sophia\Desktop\recuperação>fastboot flash oem oem.img
target reported max download size of 534773760 bytes
sending 'oem' (335878 KB)...
OKAY [ 9.942s]
writing 'oem'...
(bootloader) Image o failed validation
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.008s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.0
< waiting for device >
target reported max download size of 534773760 bytes
sending 'system' (504257 KB)...
OKAY [ 14.936s]
writing 'system'...
(bootloader) Image s failed validation
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 15.031s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.1
< waiting for device >
target reported max download size of 534773760 bytes
sending 'system' (503874 KB)...
OKAY [ 14.902s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 14.944s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.2
target reported max download size of 534773760 bytes
sending 'system' (513245 KB)...
OKAY [ 15.238s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 15.293s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.3
target reported max download size of 534773760 bytes
sending sparse 'system' (512478 KB)...
OKAY [ 17.026s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 17.058s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.4
target reported max download size of 534773760 bytes
sending sparse 'system' (522197 KB)...
OKAY [ 17.880s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 17.931s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.5
target reported max download size of 534773760 bytes
sending 'system' (489238 KB)...
OKAY [ 14.690s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 14.727s
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.6
error: cannot load 'system.img_sparsechunk.6'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.7
error: cannot load 'system.img_sparsechunk.7'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.8
error: cannot load 'system.img_sparsechunk.8'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.9
error: cannot load 'system.img_sparsechunk.9'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.10
error: cannot load 'system.img_sparsechunk.10'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.11
< waiting for device >
error: cannot load 'system.img_sparsechunk.11'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.12
error: cannot load 'system.img_sparsechunk.12'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.13
< waiting for device >
error: cannot load 'system.img_sparsechunk.13'
C:\Users\Sophia\Desktop\recuperação>fastboot flash system system.img_sparsechunk.14
< waiting for device >
error: cannot load 'system.img_sparsechunk.14'
C:\Users\Sophia\Desktop\recuperação>fastboot flash modem NON-HLOS.bin
target reported max download size of 534773760 bytes
sending 'modem' (75364 KB)...
OKAY [ 2.235s]
writing 'modem'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 2.262s
C:\Users\Sophia\Desktop\recuperação>fastboot erase modemst1
erasing 'modemst1'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.033s
C:\Users\Sophia\Desktop\recuperação>fastboot erase modemst2
erasing 'modemst2'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.021s
C:\Users\Sophia\Desktop\recuperação>fastboot flash fsg fsg.mbn
target reported max download size of 534773760 bytes
sending 'fsg' (2552 KB)...
OKAY [ 0.082s]
writing 'fsg'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition fsg
FAILED (remote failure)
finished. total time: 0.110s
C:\Users\Sophia\Desktop\recuperação>fastboot erase cache
erasing 'cache'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.021s