Database Develop

[Q] Help! Screwed up a flash to 5.1

Hi,
I was trying to flash my phone to 5.1 and I think I screwed up and ran a command I wasn't supposed too.
Now I can't do anything because I keep getting rejection messages with: (bootloader) Preflash validation failed.
I think the command that screwed me over was the: fastboot flash partition gpt.bin
I'm willing to flash back down to 5.0.1. However I don't know how and looking around the sites I'm getting confused as nothing is working for me.
My model is XT1097.
Am I completely screwed? If not. How do I get out of this mess?

Locatus said:
Hi,
I was trying to flash my phone to 5.1 and I think I screwed up and ran a command I wasn't supposed too.
Now I can't do anything because I keep getting rejection messages with: (bootloader) Preflash validation failed.
I think the command that screwed me over was the: fastboot flash partition gpt.bin
I'm willing to flash back down to 5.0.1. However I don't know how and looking around the sites I'm getting confused as nothing is working for me.
My model is XT1097.
Am I completely screwed? If not. How do I get out of this mess?
Click to expand...
Click to collapse
Now when I reboot my phone it comes up with:
"Version downgraded for boot"
"Failed to validate boot image"
"Fastboot Reason: Fall-through from normal boot mode"
Edit:
It seems to be failing to flash in the system, boot, and recovery files

Moto G XT1079 - Bootloader Update- HELP

I have a Moto G 2014 LTE XT1079 ASIAN Model (purchased in India)
Okay so i have no OS installed as of now as i unlocked the bootloader and somehow the OS got deleted.
I have TWRP recovery installed though. Whenever i try to install a custom rom like CM or Resurrection Remix, it shows be an error that this package i compatible for bootloader 0x4886 and 2 or 3 other bootloaders. it says that i have bootloader 0x4226. I want to change my bootloader so that i could install custom ROMS.
Does anyone have any idea about how i could do this.
PLEASE PLEASE PLEASE HELP.

Try flashing this Stock Firmware. Just follow the instructions given..
https://forum.xda-developers.com/moto-g-lte/general/update-stock-6-0-marshmallow-firmware-t3535380

Preflash Validation Error
ERROR : Pre flash validation failed. On the phone screen its showing 'version downgraded for primary_gpt'
i used it in mfastboot also. but same error.
Please, i could use help real bad.
C:\Users\Nikhil\Desktop\AndroidSDKSlim\android-sdk-windows\platform-tools>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.032s]
writing 'partition'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.325s
RaviWL said:
Try flashing this Stock Firmware. Just follow the instructions given..
https://forum.xda-developers.com/moto-g-lte/general/update-stock-6-0-marshmallow-firmware-t3535380
Click to expand...
Click to collapse

Keep flashing the rest of the files..

System files : Preflash validation Error
Ravi bro, its giving the same error when i flash the system.img sparesechunk img...and on the fone it says that 'image is too large'
i think i have an old bootloader. thats why it wont let me flash CM through TWRP also. it says that CM firmware is for bootloader 4886 while mine is 4226
also i have seen people flash bootloader.img also...but there is no such file here.
I have only 2 options left-
1. Get rid of the preflash validation errors
2. Update my bootloader.
i would be lovely if you could provide me with an updated bootlader.img file.
Ravi bro i will be very grateful to you if you could help me through this problem
RaviWL said:
Keep flashing the rest of the files..
Click to expand...
Click to collapse

preflash validation errror
nklrwt said:
Ravi bro, its giving the same error when i flash the system.img sparesechunk img...and on the fone it says that 'image is too large'
i think i have an old bootloader. thats why it wont let me flash CM through TWRP also. it says that CM firmware is for bootloader 4886 while mine is 4226
also i have seen people flash bootloader.img also...but there is no such file here.
I have only 2 options left-
1. Get rid of the preflash validation errors
2. Update my bootloader.
i would be lovely if you could provide me with an updated bootlader.img file.
Ravi bro i will be very grateful to you if you could help me through this problem
Click to expand...
Click to collapse
same problem i am also having. tell mehow to fix it if possible

Try flashing a modern motoboot.img for thea (I have 0x4821) using:
mfastboot flash motoboot motoboot.img
Click to expand...
Click to collapse
You can take one from an OTA package for your phone. It's strange. My XT1072 came with a recent bootloader preinstalled, but try.
Note, it must be for thea, not titan or you will cripple or hardbrick your device.

MOTO XT1079-Preflash Validation Error

I have a Moto G 2014 LTE XT1079 (Asian Model-Bought in India).
I do not have any OS installed.
I have unlocked the bootloader as on Fastboot screen it shows as Unlocked.
So i have downloaded the Stock Rom for Asian Model XT1079 which is required.
Whenever I try to flash it through Fastboot,
it gives me an error in 'fastboot flash partition gpt.bin' and also 'flashboot flash system system.img_sparsechunk.1'
The error given is (bootloader) Preflash Validation and just below that FLASH (remote failure).
I have been working on this for a period of 13 hours straight and have lost all hopes. It would really help if anyone can help in this. I have attached a photo of the files in the Firmware Folder.
PLEASE PLEASE PLEASE HELP

Please Help - Moto g6 fastboot boot verification error

I accidentally flashed the wrong firmware on this device. Was meaning to flash stock firmware. But accidentally clicked the wrong "flash.bat" script. My reasoning was to fix an error with the ota update for the September patch. The bootloader is indeed locked and is not unlockable. and I can partly flash stock firmware but the boot.img and gpt.bin keep throwing a error "preflash validation failed". The bootloader logs show "failed to validate boot img". The firmware I tried to flash to fix it was the stock firmware. The variant of this device is ali. Carrier is tracfone. Someone please help. I would rather this device be of use instead of a close to $300 paper weight.

Question Unbrick bootloader and fix Bootloop on Edge 20 pro

My Edge 20 pro entered bootloop on M logo. Bootloader is locked and I can't enter Recovery. Tried to flash stock rom via fastboot but I get this error when flashing bootloader.img.
(bootloader) Preflash validation failed
(bootloader) Cancelling 'default.xml'
FAILED (remote failure)
Please help get this device unbricked. Either I should find way to unlock bootloader or way to flash Recovery. Any ideas ?

mobiles said:
My Edge 20 pro entered bootloop on M logo. Bootloader is locked and I can't enter Recovery. Tried to flash stock rom via fastboot but I get this error when flashing bootloader.img.
(bootloader) Preflash validation failed
(bootloader) Cancelling 'default.xml'
FAILED (remote failure)
Please help get this device unbricked. Either I should find way to unlock bootloader or way to flash Recovery. Any ideas ?
Click to expand...
Click to collapse
Rescue and Smart Assistant (LMSA)(Motorola/Lenovo Only)
Rescue and Smart Assistant LMSA: Lenovo's Motorola Smart Assistant (PC) For Lenovo and Motorola Devices Only Rescue and Smart Assistant (LMSA) is an official tool installs on PC. Can help to manage smart device (include all Lenovo android phone...
forum.xda-developers.com

Tried this tool LMSA 2 times and flashed successfully but phone is again bootlooping on M logo. Any other suggestions I could try ?

is there any way to unlock bootloader via fastboot without turning on OEM UNLOCK option in developer options as I can't boot device?

I can't enter Recovery mode from fastboot menu. Can i flash stock recovery.img via fastboot? Where can I download stock recovery.img?