Database Users

Stuck in fastboot mode after flashing firmware with locked bootloader

Hello everyone, this is my first post so i´ll try to be as clear as posible
I tried today to flash through fastboot a firmware that was corrupted into my Moto G4 XT1621 and i didn´t unlock my bootloader first so i got an error when trying to flash the firmware, after thar i tried to reboot my phone but every time it turns on it goes into fastboot mode whith a message saying:
Start up failed:
Your device didn´t start up successfully. Use the software repair assistant on computer to repair your device. (i don´t know of what software repair assistant it´s talking about)
Whenever i try to flash an stock rom i get the following errors:
C:\Users\Claudio Magallón\Downloads\por favor>fastboot oem fb_mode_set
...
OKAY [ 0.005s]
finished. total time: 0.005s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.022s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.073s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash bootloader bootloader.img
target reported max download size of 536870912 bytes
sending 'bootloader' (3651 KB)...
OKAY [ 0.151s]
writing 'bootloader'...
(bootloader) validating: bootloader.default.xml ...
(bootloader) will pass: flash:aboot
(bootloader) will pass: flash:rpm
(bootloader) will pass: flash:tz
(bootloader) will pass: flash:hyp
(bootloader) will pass: flash:cmnlib
(bootloader) will pass: flash:keymaster
(bootloader) will pass: flash:sbl1
(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 'hyp.mbn' to 'hyp'
(bootloader) - flashing 'cmnlib.mbn' to 'cmnlib'
(bootloader) - flashing 'keymaster.mbn' to 'keymaster'
(bootloader) - flashing 'sbl1.mbn' to 'sbl1'
OKAY [ 0.411s]
finished. total time: 0.563s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash logo logo.bin
target reported max download size of 536870912 bytes
sending 'logo' (1848 KB)...
OKAY [ 0.093s]
writing 'logo'...
OKAY [ 0.067s]
finished. total time: 0.159s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.534s]
writing 'boot'...
(bootloader) Security version downgrade
(bootloader) Image boot failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.713s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (16484 KB)...
OKAY [ 0.538s]
writing 'recovery'...
(bootloader) Security version downgrade
(bootloader) Image recovery failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.719s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash dsp adspso.bin
target reported max download size of 536870912 bytes
sending 'dsp' (16384 KB)...
OKAY [ 0.544s]
writing 'dsp'...
OKAY [ 0.274s]
finished. total time: 0.819s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash oem oem.img
target reported max download size of 536870912 bytes
sending 'oem' (124713 KB)...
OKAY [ 3.942s]
writing 'oem'...
(bootloader) Security version downgrade
(bootloader) Image o failed validation
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 4.027s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.0
target reported max download size of 536870912 bytes
sending 'system' (257282 KB)...
OKAY [ 8.110s]
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: 8.205s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.1
target reported max download size of 536870912 bytes
sending 'system' (258607 KB)...
OKAY [ 8.152s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 8.183s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.2
target reported max download size of 536870912 bytes
sending 'system' (260204 KB)...
OKAY [ 8.494s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 8.529s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.3
target reported max download size of 536870912 bytes
sending 'system' (250512 KB)...
OKAY [ 7.904s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 7.937s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.4
target reported max download size of 536870912 bytes
sending 'system' (254492 KB)...
OKAY [ 8.036s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 8.073s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.5
target reported max download size of 536870912 bytes
sending 'system' (257841 KB)...
OKAY [ 8.130s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 8.161s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.6
target reported max download size of 536870912 bytes
sending 'system' (256191 KB)...
OKAY [ 8.080s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 8.125s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash system system.img_sparsechunk.7
target reported max download size of 536870912 bytes
sending 'system' (150189 KB)...
OKAY [ 4.743s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 4.777s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash modem NON-HLOS.bin
target reported max download size of 536870912 bytes
sending 'modem' (76861 KB)...
OKAY [ 2.436s]
writing 'modem'...
OKAY [ 1.127s]
finished. total time: 3.564s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase modemst1
erasing 'modemst1'...
OKAY [ 0.038s]
finished. total time: 0.038s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase modemst2
erasing 'modemst2'...
OKAY [ 0.025s]
finished. total time: 0.025s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot flash fsg fsg.mbn
target reported max download size of 536870912 bytes
sending 'fsg' (1868 KB)...
OKAY [ 0.078s]
writing 'fsg'...
OKAY [ 0.060s]
finished. total time: 0.139s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase cache
erasing 'cache'...
OKAY [ 0.030s]
finished. total time: 0.030s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase userdata
erasing 'userdata'...
OKAY [ 0.052s]
finished. total time: 0.053s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase customize
erasing 'customize'...
OKAY [ 0.030s]
finished. total time: 0.030s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot erase clogo
erasing 'clogo'...
OKAY [ 0.054s]
finished. total time: 0.054s
C:\Users\Claudio Magallón\Downloads\por favor>fastboot oem fb_mode_clear
...
OKAY [ 0.005s]
finished. total time: 0.005s
I will appreciate all of your help, i only have 1 week with my phone and i dont want to be left with a brick.

Did you try this?
http://forum.xda-developers.com/moto-g4/development/unbrick-hard-bricked-moto-g4-amazon-t3486578

Try to unlock your bootloader on this link http://a df.ly/1fSnaw
And flash the stock rom o this link http://a df.ly/1fRBXU
Firmware pass: www.stockrom.net
mfastboot oem fb_mode_set
mfastboot flash partition gpt.bin
mfastboot flash bootloader bootloader.img
mfastboot flash logo logo.bin
mfastboot flash boot boot.img
mfastboot flash recovery recovery.img
mfastboot flash dsp adspso.bin
mfastboot flash oem oem.img
mfastboot flash system system.img_sparsechunk.0
mfastboot flash system system.img_sparsechunk.1
mfastboot flash system system.img_sparsechunk.2
mfastboot flash system system.img_sparsechunk.3
mfastboot flash system system.img_sparsechunk.4
mfastboot flash system system.img_sparsechunk.5
mfastboot flash system system.img_sparsechunk.6
mfastboot flash system system.img_sparsechunk.7
mfastboot flash modem NON-HLOS.bin
mfastboot erase modemst1
mfastboot erase modemst2
mfastboot flash fsg fsg.mbn
mfastboot erase cache
mfastboot erase userdata
mfastboot erase customize
mfastboot erase clogo
mfastboot oem fb_mode_clear
mfastboot reboot

Thanks to both of you, i have just tried both methods.
The first one where i have to flash an XT1025 Amazon Rom is giving me the same error i detailed on my first post.
The second one, when i try to unlock my boot loader is giving me the next message:
(bootloader) Check 'Allow OEM Unlock' in Android Settings > Developer
(bootloader) Options
OKAY [ 0.021s]
finished. total time: 0.021s
C:\Users\Claudio MagallÛn\Downloads\XT1621>
The problem is that i can't turn on my phone to check 'Allow OEM Unlock' option

Moto G4 XT1622 Bricked......

Hi There,
I hope someone can advise and possibly provide help resolving this problem.
The Moto G4 is not able to boot to OS, It only boots into bootloader, cannot go into recovery and cannot go into Factory Mode etc.
The error i get on the phone is....
"Start Up Failed"
Failed to verify hab image boot
Failed to verify boot image
ERROR: Failed to pass validation, backup to fastboot
Fastboot Reason: Fall-through from normal boot mode
I have tried to clear fb_mode and tried to unlock the bootloader without success.
I have tried various stock roms to get this fixed. The phone has never been unlocked and not been rooted.
C:\adb>fastboot oem fb_mode_set
...
OKAY [ -0.000s]
finished. total time: -0.000s
C:\adb>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.031s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.094s
C:\adb>fastboot flash bootloader bootloader.img
target reported max download size of 536870912 bytes
sending 'bootloader' (3651 KB)...
OKAY [ 0.172s]
writing 'bootloader'...
(bootloader) validating: bootloader.default.xml ...
(bootloader) Security version downgrade
(bootloader) Image aboot failed validation
(bootloader) Preflash validation failed
(bootloader) will fail: flash:aboot
FAILED (remote failure)
finished. total time: 0.319s
C:\adb>fastboot flash logo logo.bin
target reported max download size of 536870912 bytes
sending 'logo' (1848 KB)...
OKAY [ 0.094s]
writing 'logo'...
OKAY [ 0.078s]
finished. total time: 0.172s
C:\adb>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.687s]
writing 'boot'...
(bootloader) Image boot failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.891s
C:\adb>fastboot flash recovery recovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (16484 KB)...
OKAY [ 0.664s]
writing 'recovery'...
(bootloader) Image recovery failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.883s
C:\adb>fastboot flash system system.img_sparsechunk.0
target reported max download size of 536870912 bytes
sending 'system' (257278 KB)...
OKAY [ 9.982s]
writing 'system'...
(bootloader) Image s failed validation
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.097s
C:\adb>fastboot flash system system.img_sparsechunk.1
target reported max download size of 536870912 bytes
sending 'system' (258607 KB)...
OKAY [ 10.125s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.157s
C:\adb>fastboot flash system system.img_sparsechunk.2
target reported max download size of 536870912 bytes
sending 'system' (258384 KB)...
OKAY [ 10.076s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.107s
C:\adb>fastboot flash system system.img_sparsechunk.3
target reported max download size of 536870912 bytes
sending 'system' (252313 KB)...
OKAY [ 9.973s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.004s
C:\adb>fastboot flash system system.img_sparsechunk.4
target reported max download size of 536870912 bytes
sending 'system' (254404 KB)...
OKAY [ 10.017s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.064s
C:\adb>fastboot flash system system.img_sparsechunk.5
target reported max download size of 536870912 bytes
sending 'system' (258060 KB)...
OKAY [ 10.114s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.161s
C:\adb>fastboot flash modem NON-HLOS.bin
target reported max download size of 536870912 bytes
sending 'modem' (76857 KB)...
OKAY [ 3.038s]
writing 'modem'...
OKAY [ 2.036s]
finished. total time: 5.075s
C:\adb>fastboot erase modemst1
erasing 'modemst1'...
OKAY [ 0.047s]
finished. total time: 0.047s
C:\adb>fastboot erase modemst2
erasing 'modemst2'...
OKAY [ 0.062s]
finished. total time: 0.062s
C:\adb>fastboot flash fsg fsg.mbn
target reported max download size of 536870912 bytes
sending 'fsg' (1864 KB)...
OKAY [ 0.100s]
writing 'fsg'...
OKAY [ 0.109s]
finished. total time: 0.210s
C:\adb>fastboot erase cache
erasing 'cache'...
OKAY [ 0.016s]
finished. total time: 0.031s
C:\adb>fastboot erase userdata
erasing 'userdata'...
OKAY [ 0.078s]
finished. total time: 0.078s
C:\adb>fastboot erase customize
erasing 'customize'...
OKAY [ 0.031s]
finished. total time: 0.031s
C:\adb>fastboot erase clogo
erasing 'clogo'...
OKAY [ 0.047s]
finished. total time: 0.047s
C:\adb>fastboot oem fb_mode_clear
...
OKAY [ -0.000s]
finished. total time: -0.000s
C:\adb>fastboot reboot
rebooting...
finished. total time: 0.016s
Click to expand...
Click to collapse

what have you done to your phone at the first place when it was working? did you unlock bootloader? were you flashing some customised roms? have your try to root? ... or something else?

Hi,
Nothing like rooting flashing roms etc. I think an update installed and booted to the Start Up Failed error.
Thanks,
Phatzy

Twrp flashed but not opening...dtb not found error

My device is Asus Zenfone Max(sd615) 32gb varient.
With TWRP my device can't access to recovery when i type fastboot boot recovery.img after a flash, i don't know if the problem come from my fastboot. Somebody for help me, or fix this issue.
Here is the commands I have performed as instructed....
`C:\Android>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Charger screen enabled: true
(bootloader) Display panel:
(bootloader) console_enabled: 0
(bootloader) exec_console_unconsole: 0
OKAY [ 0.017s]
finished. total time: 0.019s
C:\Android>fastboot flash recovery recovery.img
target reported max download size of 1073741824 bytes
sending 'recovery' (15920 KB)...
OKAY [ 0.507s]
writing 'recovery'...
OKAY [ 0.303s]
finished. total time: 0.817s
C:\Android>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.516s]
booting...
FAILED (remote: dtb not found)
finished. total time: `0.556s``
Pls tell me how can I fix this dtb not found error

Device didn't start successfully. Bootloader issue?

So my moto G5 plus has had a problem. I was on stock oreo and it just crashed one day prompting "Your device didn't start up successfully". So I repaired it using the Lenovo software repair assistant and it worked quite perfectly. Now that I had a reset I thought of trying Pixel Experience [AOSP & CAF] ROM and flashed it.
It crashed again and now Lenovo software repair assistant is not able to repair it. Any particular reason? I had USB debugging on and OEM set to unlock when this ROM was working fine. I downloaded the stock ROM repair assistant suggested and tried fastboot way but it also didn't work. There was always remote failure.
Also, adb isn't detecting my device. fastboot is detecting though. here are some details:
Code:
C:\adb>adb devices
List of devices attached
*blank*
C:\adb>fastboot devices
ZY223XXJ9S fastboot
Code:
C:\adb\ROM>fastboot flash partition gpt.bin
target reported max download size of 534773760 bytes
sending 'partition' (45 KB)...
OKAY [ 0.004s]
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: 0.077s
C:\adb\ROM>fastboot flash bootloader bootloader.img
target reported max download size of 534773760 bytes
sending 'bootloader' (5115 KB)...
OKAY [ 0.117s]
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: 0.326s
C:\adb\ROM>fastboot flash logo logo.bin
target reported max download size of 534773760 bytes
sending 'logo' (2186 KB)...
OKAY [ 0.051s]
writing 'logo'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition logo
FAILED (remote failure)
finished. total time: 0.064s
C:\adb\ROM>fastboot flash boot boot.img
target reported max download size of 534773760 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.380s]
writing 'boot'...
(bootloader) Image signed with key bad key
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition boot
FAILED (remote failure)
finished. total time: 0.486s
C:\adb\ROM>fastboot flash recovery recovery.img
target reported max download size of 534773760 bytes
sending 'recovery' (20580 KB)...
OKAY [ 0.462s]
writing 'recovery'...
(bootloader) Image signed with key bad key
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition recovery
FAILED (remote failure)
finished. total time: 0.615s
C:\adb\ROM>fastboot flash dsp adspso.bin
target reported max download size of 534773760 bytes
sending 'dsp' (16384 KB)...
OKAY [ 0.356s]
writing 'dsp'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition dsp
FAILED (remote failure)
finished. total time: 0.369s
C:\adb\ROM>fastboot flash oem oem.img
target reported max download size of 534773760 bytes
sending 'oem' (104608 KB)...
OKAY [ 2.268s]
writing 'oem'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 2.279s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.0
target reported max download size of 534773760 bytes
sending 'system' (256557 KB)...
OKAY [ 5.592s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.621s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.1
target reported max download size of 534773760 bytes
sending 'system' (256617 KB)...
OKAY [ 5.602s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.726s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.2
target reported max download size of 534773760 bytes
sending 'system' (254213 KB)...
OKAY [ 5.576s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.636s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.3
target reported max download size of 534773760 bytes
sending 'system' (256710 KB)...
OKAY [ 5.672s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.735s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.4
target reported max download size of 534773760 bytes
sending 'system' (256912 KB)...
OKAY [ 5.649s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.811s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.5
target reported max download size of 534773760 bytes
sending 'system' (257861 KB)...
OKAY [ 5.629s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.764s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.6
target reported max download size of 534773760 bytes
sending 'system' (260027 KB)...
OKAY [ 5.705s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.869s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.7
target reported max download size of 534773760 bytes
sending 'system' (257557 KB)...
OKAY [ 5.623s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.793s
C:\adb\ROM>fastboot flash system system.img_sparsechunk.8
target reported max download size of 534773760 bytes
sending 'system' (257826 KB)...
OKAY [ 5.628s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 5.680s
C:\adb\ROM>fastboot flash modem NON-HLOS.bin
target reported max download size of 534773760 bytes
sending 'modem' (71925 KB)...
OKAY [ 1.580s]
writing 'modem'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 1.592s
C:\adb\ROM>fastboot erase modemst1
erasing 'modemst1'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.009s
C:\adb\ROM>fastboot erase modemst2
erasing 'modemst2'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.008s
C:\adb\ROM>fastboot flash fsg fsg.mbn
target reported max download size of 534773760 bytes
sending 'fsg' (3012 KB)...
OKAY [ 0.070s]
writing 'fsg'...
(bootloader) Failed to erase partition
(bootloader) Failed to flash partition fsg
FAILED (remote failure)
finished. total time: 0.083s
C:\adb\ROM>fastboot erase cache
erasing 'cache'...
OKAY [ 0.065s]
finished. total time: 0.068s
C:\adb\ROM>fastboot erase userdata
erasing 'userdata'...
(bootloader) Failed to erase partition
FAILED (remote failure)
finished. total time: 0.009s
C:\adb\ROM>fastboot erase customize
erasing 'customize'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.007s
C:\adb\ROM>fastboot erase clogo
erasing 'clogo'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.008s
C:\adb\ROM>fastboot oem fb_mode_clear
...
FAILED (remote failure)
finished. total time: 0.116s
C:\adb\ROM>fastboot reboot
rebooting...
finished. total time: 0.003s
My device is connected to pc as "fastboot potter S"
I also trying getting the unlock key through fastboot. While I got the key, I was not able to unlock it (remote failure). Is there a solution? Any other details required from my side?
Fair warning: I'm so not a pro at this (clearly). I already ordered a new phone but the feel that I'm not able to get a solution from hours and hours of browsing xda is just disheartening. I refuse to give up on this one. Too many good memories associated with it

Well if you were on pixel experience then your bootloader is already unlocked so no need to do that. The fb log shows security version downgrade which happens when you try to flash an older firmware. Try the getvar command and it should show some more details and then just download the correct firmware. Does your twrp work?

Exactly. Grab the latest firmware 8.1.0_OPS28.85-17-6-2 (February security patch) and flash it. There's no newer stock firmware so a downgrade isn't possible
Sent from my Moto G5 Plus using XDA Labs

debdeep98 said:
Well if you were on pixel experience then your bootloader is already unlocked so no need to do that. The fb log shows security version downgrade which happens when you try to flash an older firmware. Try the getvar command and it should show some more details and then just download the correct firmware. Does your twrp work?
Click to expand...
Click to collapse
I can't get pass the boot screen. It just says device didn't start successfully. I'll try the getvar and will post again. I can't even reboot the phone or the bootlocker using fastboot.

Unlocked bootloader Phone stuck in bootloop

I successfully unlocked my bootloader last night. I went through the process of patching the img file through magisk to root and flashed it via fastbooot. I have been stuck in a loop since. I can still get into fastboot. I have tried Smart Assistant and RSD but they wont detect my phone.
I tried a using different firmware as others have posted and i'm still stuck.
here is my process on powershell:
PS C:\Android> fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (45 KB)...
OKAY [ 0.002s]
writing 'partition'...
(bootloader) Validating 'gpt.default.xml'
(bootloader) Committing 'gpt.default.xml'
(bootloader) - flashing 'gpt_main0.bin' to 'partition:0'
(bootloader) Flashing primary GPT image...
(bootloader) Flashing backup GPT image...
OKAY [ 0.092s]
finished. total time: 0.095s
PS C:\Android> fastboot flash bootloader bootloader.img
target reported max download size of 536870912 bytes
sending 'bootloader' (7419 KB)...
OKAY [ 0.179s]
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_30.mbn' to 'cmnlib'
(bootloader) - flashing 'cmnlib64_30.mbn' to 'cmnlib64'
(bootloader) - flashing 'keymaster64.mbn' to 'keymaster'
(bootloader) - flashing 'prov.mbn' to 'prov'
(bootloader) - flashing 'sbl1.mbn' to 'sbl1'
OKAY [ 0.317s]
finished. total time: 0.497s
PS C:\Android> fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.001s]
finished. total time: 0.002s
PS C:\Android> fastboot flash modem NON-HLOS.bin
target reported max download size of 536870912 bytes
sending 'modem' (65900 KB)...
OKAY [ 1.527s]
writing 'modem'...
OKAY [ 0.512s]
finished. total time: 2.040s
PS C:\Android> fastboot flash fsg fsg.mbn
target reported max download size of 536870912 bytes
sending 'fsg' (11612 KB)...
OKAY [ 0.270s]
writing 'fsg'...
OKAY [ 0.089s]
finished. total time: 0.361s
PS C:\Android> fastboot erase modemst1
erasing 'modemst1'...
OKAY [ 0.015s]
finished. total time: 0.015s
PS C:\Android> fastboot erase modemst2
erasing 'modemst2'...
OKAY [ 0.015s]
finished. total time: 0.016s
PS C:\Android> fastboot flash bluetooth BTFM.bin
error: cannot load 'BTFM.bin'
PS C:\Android> fastboot flash dsp dspso.bin
error: cannot load 'dspso.bin'
PS C:\Android> fastboot flash dsp dspso.bin
error: cannot load 'dspso.bin'
PS C:\Android> fastboot flash dsp adspso.bin
target reported max download size of 536870912 bytes
sending 'dsp' (16384 KB)...
OKAY [ 0.380s]
writing 'dsp'...
OKAY [ 0.104s]
finished. total time: 0.486s
PS C:\Android> fastboot flash logo logo.bin
target reported max download size of 536870912 bytes
sending 'logo' (2633 KB)...
OKAY [ 0.062s]
writing 'logo'...
OKAY [ 0.044s]
finished. total time: 0.107s
PS C:\Android> fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (32768 KB)...
OKAY [ 0.789s]
writing 'boot'...
(bootloader) Image signed with key bad key
OKAY [ 0.641s]
finished. total time: 1.431s
PS C:\Android> fastboot flash system system.img_sparsechunk.0
target reported max download size of 536870912 bytes
sending 'system' (256852 KB)...
OKAY [ 5.933s]
writing 'system'...
OKAY [ 1.093s]
finished. total time: 7.028s
PS C:\Android> fastboot flash system system.img_sparsechunk.1
target reported max download size of 536870912 bytes
sending 'system' (262141 KB)...
OKAY [ 6.062s]
writing 'system'...
OKAY [ 1.102s]
finished. total time: 7.166s
PS C:\Android> fastboot flash system system.img_sparsechunk.2
target reported max download size of 536870912 bytes
sending 'system' (234600 KB)...
OKAY [ 5.424s]
writing 'system'...
OKAY [ 0.955s]
finished. total time: 6.379s
PS C:\Android> fastboot flash system system.img_sparsechunk.3 target reported max download size of 536870912 bytes
sending 'system' (259529 KB)...
OKAY [ 5.998s]
writing 'system'...
OKAY [ 1.075s]
finished. total time: 7.075s
PS C:\Android> fastboot flash system system.img_sparsechunk.4
target reported max download size of 536870912 bytes
sending 'system' (262141 KB)...
OKAY [ 6.061s]
writing 'system'...
OKAY [ 1.114s]
finished. total time: 7.177s
PS C:\Android> fastboot flash system system.img_sparsechunk.5
target reported max download size of 536870912 bytes
sending 'system' (252895 KB)...
OKAY [ 5.852s]
writing 'system'...
OKAY [ 1.144s]
finished. total time: 6.997s
PS C:\Android> fastboot flash system system.img_sparsechunk.6
target reported max download size of 536870912 bytes
sending 'system' (262140 KB)...
OKAY [ 6.070s]
writing 'system'...
OKAY [ 1.092s]
finished. total time: 7.163s
PS C:\Android> fastboot flash system system.img_sparsechunk.7
target reported max download size of 536870912 bytes
sending 'system' (260863 KB)...
OKAY [ 6.071s]
writing 'system'...
OKAY [ 1.883s]
finished. total time: 7.955s
PS C:\Android> fastboot flash system_b system_other.img
error: cannot load 'system_other.img'
PS C:\Android> fastboot flash oem oem_other.img
target reported max download size of 536870912 bytes
sending 'oem' (43696 KB)...
OKAY [ 1.012s]
writing 'oem'...
OKAY [ 0.219s]
finished. total time: 1.233s
PS C:\Android> fastboot flash oem oem.img
target reported max download size of 536870912 bytes
sending 'oem' (68308 KB)...
OKAY [ 1.584s]
writing 'oem'...
OKAY [ 0.300s]
finished. total time: 1.887s
PS C:\Android> fastboot erase carrier
erasing 'carrier'...
OKAY [ 0.032s]
finished. total time: 0.033s
PS C:\Android> fastboot erase userdata
erasing 'userdata'...
OKAY [ 0.082s]
finished. total time: 0.083s
PS C:\Android> fastboot erase ddr
erasing 'ddr'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.004s
PS C:\Android> fastboot erase ddr
erasing 'ddr'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.004s
PS C:\Android> fastboot reboot
rebooting...
finished. total time: 0.001s

You need to wipe everything with fastboot commands. Then flash stock again. Also there's no need to do any of that anymore to get root. Just flash the latest magisk in TWRP next time.

Phalanx7621 said:
You need to wipe everything with fastboot commands. Then flash stock again. Also there's no need to do any of that anymore to get root. Just flash the latest magisk in TWRP next time.
Click to expand...
Click to collapse
Thank you for the reply
Should "Fastboot erase" wipe it all out?
do you know where I can the correct stock room for XT1962-1?
Sent from my SM-N975U using Tapatalk

Extract all files from stock zip and run flashall.bat file at command prompt with phone connected in bootloader mode. This will flash and erase all to correct retail stock at Lolinet mirror
https://mirrors.lolinet.com/firmware/moto/river/official/RETAIL/

Flashall.bat file
Extract into adb folder (same as all files in stock zip file)

HueyT said:
Extract into adb folder (same as all files in stock zip file)
Click to expand...
Click to collapse
Thank you for your help!! I'll let you know how it goes
Sent from my SM-N975U using Tapatalk

HueyT said:
Extract into adb folder (same as all files in stock zip file)
Click to expand...
Click to collapse
Update: I'm back up and running! I really appreciate the help! my bootloader is still unlocked, what is the best way to root this device?

dnsource said:
Update: I'm back up and running! I really appreciate the help! my bootloader is still unlocked, what is the best way to root this device?
Click to expand...
Click to collapse
Install TWRP and then flash Magisk 20.2 and Magisk Manager APK

While patching the boot.img for your first installation, did you choose "Preserve force encryption" in "Advanced Settings"?