Please Help - Moto g6 fastboot boot verification error - Moto G6 Questions & Answers

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.

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[Q] Im brick my AHD AT&T on JB flashing MB886_niimx-user-4.1.2-9.8.2Q-50_MB886

I made the mistake of flash this file MB886_niimx-user-4.1.2-9.8.2Q-50_MB886_NII_TA-2-16-release-keys-NII-AHD MX.xml.zip in my AHD AT&T on JB 4.1.1, now when I try to flash, I get this error:
RSDLite: Failed flashing process. 1/23 flash partion \ \ gpt_main0.bin - Phone returned FAIL.
ATRIX HD: security downgraded version
gpt_main version update failed
preflash validation failed for GPT.
any ideas to fix this?
PD. Excuse my english
How is there a Mexican firmware for this phone??? I haven't seen this phone available in Mexico...
3z3-8917 said:
I made the mistake of flash this file MB886_niimx-user-4.1.2-9.8.2Q-50_MB886_NII_TA-2-16-release-keys-NII-AHD MX.xml.zip in my AHD AT&T on JB 4.1.1, now when I try to flash, I get this error:
RSDLite: Failed flashing process. 1/23 flash partion \ \ gpt_main0.bin - Phone returned FAIL.
ATRIX HD: security downgraded version
gpt_main version update failed
preflash validation failed for GPT.
any ideas to fix this?
PD. Excuse my english
Click to expand...
Click to collapse
+1
joel_sinbad said:
How is there a Mexican firmware for this phone??? I haven't seen this phone available in Mexico...
Click to expand...
Click to collapse
Yes the mexican firmware is avaliable for dowload in sbf.droid-developers, but it's but it's no compatible with AHD AT&T.
I lost the signal constantly in my AHD AT&T 4.1.1 stock JB, for that reason I flashing mexican firmware for fix this, but I brick my phone, not is posible reflashing MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip, I get this error en RDS: Failed flashing process. 1/23 flash partion \ \ gpt_main0.bin - Phone returned FAIL
3z3-8917 said:
Yes the mexican firmware is avaliable for dowload in sbf.droid-developers, but it's but it's no compatible with AHD AT&T.
I lost the signal constantly in my AHD AT&T 4.1.1 stock JB, for that reason I flashing mexican firmware for fix this, but I brick my phone, not is posible reflashing MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip, I get this error en RDS: Failed flashing process. 1/23 flash partion \ \ gpt_main0.bin - Phone returned FAIL
Click to expand...
Click to collapse
I learned YEARS ago never to flash an sfb\fastboot\odin\whatever if its not made specifically for your device+OS+carrier until the super smarts have determined if the signatures\values are compatible (or wait until a post like this shows up ). Motorola's notorious for setting up sbf's in a way that will brick you, prevent you from ever going back to stock, and\or downgrading. Knowing that, I made a rom from MR instead of flashing the fastboot.
ATRIX HD: security downgraded version -- that line worries me the most, especially if that's what it says if you're trying to flash AT&T now -- It could mean that MR has a higher CG value than AT&T. You'll never be able to install the AT&T fastboot again if that ends up being the case -- you've blown an efuse.
I'm gonna need some more details: Did the MR flash fully finish the first time used? If it fully finished and didn't boot or loops, do a factory reset in the stock reocovery. You could also try to unlock the bootloader (worth a shot at any rate) -- seems like you still have fastboot access so its at least worth trying -- it would be great if MR is the secret fastboot that unlocks us (I mean, the rom itself has no entitlement checking whatsoever, maybe its bootloader doesn't either...)
.
Can you still access SS or does it boot directly into fastboot\stock recovery? . If fastboot only, try flashing just the boot.img from the fastboot (probably won't work if an efuse has been blown). If you still have SS then we can put the boot.img in a zip and flash that -- its how we safely tested Defy sbf's without blowing an efuse.
After trying all of the above and if none of them work you should attempt flashing the Bell JB fasboot as a last ditch effort.
loading into fastboot only with error "flash failure"
marshok said:
loading into fastboot only with error "flash failure"
Click to expand...
Click to collapse
I'm not really sure what to tell you. You could try flashing just AT&T boot.img and devtree....Maybe make a hybrid fastboot, replace what fails during the AT&T flash with files from the MR fastboot (and modify the xml accordingly). Since it seems you're using the MR fastboot menu it, trying the unlock command is worth a shot.
All my other suggestions involve trying to connect directly to the nand and manually dd in the mbr and such -- I've never even tried connecting to my phone like that, so you'll have to search for those methods on your own, sorry. You'll also be diving in to full on brick territory too. You're just semi bricked, so you can still get lucky if you don't change that.
There is still hope (maybe) -- Apparently 4.2 is in testing and a fastboot should pop up for it before or after it's released. If its like every other major sbf\fastboot release I've seen it should have higher signatures\cg values and could possibly be a fix for you. That's all an assumption, but its based on credible rumor (a Mattlgroff post) and Motorola's past actions. The point is -- You still have access to fastboot, don't do anything to screw that up because your needed fix might not be available yet.
Or you could send in your phone for warranty; check Motorola's website to see if your still covered under factory warranty -- I am and my phone is a 99 cent refurbished model -- I still have 11 months left You get 12-24 months coverage when you register (length depends on New or Refurb). I was truthful on my Purchase Date, but I suppose you could lie and say you just recently bought it and it quit working when you started to upgrade it.
Did the MR flash fully finish the first time used?
Click to expand...
Click to collapse
no the flashing not completed, I got the error just flash boot.img
You could also try to unlock the bootloader (worth a shot at any rate) -- seems like you still have fastboot access so its at least worth trying -- it would be great if MR is the secret fastboot that unlocks us (I mean, the rom itself has no entitlement checking whatsoever, maybe its bootloader doesn't either...)
Click to expand...
Click to collapse
how I can do this? when my AHD is briked
Can you still access SS or does it boot directly into fastboot\stock recovery? . If fastboot only, try flashing just the boot.img from the fastboot (probably won't work if an efuse has been blown). If you still have SS then we can put the boot.img in a zip and flash that -- its how we safely tested Defy sbf's without blowing an efuse.
Click to expand...
Click to collapse
if boot directly into fastboot and I have acces stock recovery
After trying all of the above and if none of them work you should attempt flashing the Bell JB fasboot as a last ditch effort.
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Click to collapse
I try flash Bell JB fasboot and I get the same error
thanks for your help skeevy420
PD. Excuse my english
del
3z3-8917
How do you help skeevy420?
you have restored your phone after flashing on MB886_niimx-user-4.1.2-9.8.2Q-50_MB886?
In the same boat
Hey guys I'm in the same boat. I rooted my Atrix HD and was happy until I installed busy box 9.2, which managed to overwrite /system/bin and I don't know what else I could no longer mount/remount, change w/r in root, use the ls or many other commands and wifi, mobile data, bluetooth, or OS factory reset all gone.
I should have made a copy of my system before doing anything else but I went ahead and used the boot menu recovery, which didn't do anything to help the problem.
I then flashed the MR rom with RSD Light in an attempt to recovery my phone, it was 4.1.2 and seemed like a good (hindsight horrible) idea at the time.
Now I can fastboot flash recovery images from att JB but it does no good because the boot partition fails. The RSD Light MR boot flash failed but somehow the security version stuck, and the Bell 4.1.2, Att 4.1.1, and 7.7.1Q-144, roms boot.img all return Partition (boot) Security Version Downgraded. If anyone knows a way around this please let me know.
It seems kind of tragic that Dan's bootloader unlocking came out, pretty much the day after I got stuck in this locked bootloader loop
You have to use a special xml, unzip your stock-rom replace the old xml with this one: for ICS and this one for JB.
Then try to flash it again with https://www.box.com/s/cmoz84iachug77tghdlo version of rsd lite. Make sure you have these latest drivers.
3z3-8917 said:
Yes the mexican firmware is avaliable for dowload in sbf.droid-developers, but it's but it's no compatible with AHD AT&T.
I lost the signal constantly in my AHD AT&T 4.1.1 stock JB, for that reason I flashing mexican firmware for fix this, but I brick my phone, not is posible reflashing MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip, I get this error en RDS: Failed flashing process. 1/23 flash partion \ \ gpt_main0.bin - Phone returned FAIL
Click to expand...
Click to collapse
it can fix?????? i did the same flash at my atrix hd
rorrito said:
it can fix?????? i did the same flash at my atrix hd
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Click to collapse
for the moment it's not possible, wait bootloader unlock tool for AHD briked....
Codex01 said:
You have to use a special xml, unzip your stock-rom replace the old xml with this one: for ICS and this one for
JB
Then try to flash it again with this version of rsd lite. Make sure you have these latest drivers.
Click to expand...
Click to collapse
Ok downloaded the JB you linked and upgraded from RSD Light 6.1.4 to 6.1.5, I edited the XML to remove getvar, and ran RSD Light but it still fails on step 1.
"Failed Flashing Process 1/23 "gpt_main0.bin -> Phone returned FAIL."
On the Phone "preflash validation failed for gpt_main0.bin"
The only stock rom that made it past step 1 has been the MR that bricked my phone, so I replaced the system.img, boot.img, and recovery.img of the MR with the JB 4.1.1 you linked but it still fails at step 15, flashing boot.img. Preflash validation falure
BRICK AHD
Exactly same situation here, Flashing Mexican Firmware.
Now i got Partition (Boot) Security Version Downgraded
Hope it can be fixed:crying:
fix fail on part 1 rsd
use the stickyboot fix from general got it from skeevydude it works, try using mythtools after!
ickysjazz said:
Exactly same situation here, Flashing Mexican Firmware.
Now i got Partition (Boot) Security Version Downgraded
Hope it can be fixed:crying:
Click to expand...
Click to collapse
Shame on me :S
Well, I just bricked an ATT AHD in the same manner, trying to flash the Mexican JB version (I bought 3 of this phones to sell here in Mexico and wanted them to look as the phones they sell here by replacing the broken digitizers with ones with no ATT logo and flashing local firmware) ...But yeah, I made a big mistake, I wasn't aware I had to unlock BL before flashing other carrier SBF's... :S At least I've learned from this and didn't made the same mistake with the other 2 AHD's I have (And I'm planning to go back to stock and deodex em' because Mex fw isnt working pretty well on this AHD's...)
Trying to repair this thing by reflashing ATT JB stock fw... RSD & Myth seem not to work;
-In RSD I can't even get past step 1/23 (flash partition "gtp_main0.bin" failed"); when trying to flash Mexican rom I got to step 15/23 till I got the error.
-In Myth It looks like some files get flashed (It even gets me to the "Load Recovery" option, I obviously choose Stock as I don't want to f'up the phone even more ) and then "finishes" but when rebooting, shows "Dual Core tech" bootscreen and sends me back to Fastboot (Reason: Sticky bit factory_fastboot), tried stickyboot solution on cmd and then reflash on myth, same result.
Also I get the messages "downgraded security version" and "Invalid PIV Image: System" in AHD Fastboot. I don't know what else to do now, I still haven't tried Bell rom as I think I'll mess things up even more so I've stayed away from it At this point I guess I'm pretty much f***ed...
@ickysjazz
@vananucho
You're using the wrong fastboot...I can tell that by the error code...use snapdragon fastboots...those are the only ones for us to use. Any other fastboot will result in errors.
So Download those
DL Mex Retail
Extract it
Open terminal to that extracted directory
Do the sticky_bit fix.
Do these commands in this order
Code:
fastboot flash partition gpt_main0.bin
fastboot flash sbl1 sbl1.mbn
fastboot flash sbl2 sbl2.mbn
fastboot flash sbl3 sbl3.mbn
fastboot flash rpm rpm.mbn
fastboot flash tz tz.mbn
fastboot flash aboot emmc_appsboot.mbn
fastboot flash modem NON-HLOS.bin
fastboot flash fsg fsg.mbn
fastboot erase modemst1
fastboot erase modemst2
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash devtree device_tree.bin
fastboot flash system system.img
fastboot flash cdrom cdrom
fastboot erase cache
fastboot erase userdata
And that's how you manually flash a fastboot. I've never used MythTools or RSD. That is how I do it, always have done it, always will do it -- with the same fastboot linked above with same commands posted. Those are for Mex Retail, but should work on any JB fastboot...ICS fastboots need a few minor tweaks.
Do the fastboot commands as root on Linux or as a Windows Admin (set the admin privileges for the app in the right click properties menu)
Replaced the fastboot with the one provided by Skeevydude and still get the same error but I guess it's due to the fact that I'm running out of battery (Started showing low bat advice after 3rd failed attempt, using regular cable), I'll try this again as soon as I make a flashing cable, I'll keep updated!

flashing bootloader -- preflash validation failed (after flash-all.bat)

I tried to upgrade from Android M preview 3 to 6.0 Marshmallow using the flash-all.bat.
There were error messages and the phone would not boot into recovery.
I went back to fastboot to flash files one at a time.
When I try to flash bootloader it fails with the "Preflash validation error" message.
Is this telling me that I can't flash the bootloader because it was already flashed during the (unsuccessful) flash-all.bat?
Can I flash the other files to get the phone back to working order?
Hi, I have the same issue. Were you able to flash the new bootloader?
I've read and heard from several people that the flash-all.bat doesn't work correctly. I'd recommend flashing the .img files separately.

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

Having trouble with restoring a soft-bricked XT1068

Hi there,
a friend asked me for help with restoring his german Moto G 2014 (XT1068). The last working software on the device was the Marshmallow update. He was having software issues and softbricked the device when trying to install a custom ROM.
Fastboot mode and stock recovery is accesible, the bootloader is unlocked and the device is stuck on the "WARNING: BOOTLOADER UNLOCKED" screen when trying to boot normally.
I have tried following this guide to revert the phone back to stock firmware with a matching system image. Both the XT1068_TITAN_RETDE_6.0_MPB24.65-34-3_cid7_CFC and XT1068_TITAN_RETAILDSDS_6.0_MPB24.65-34-3_cid7_CFC images will flash without any error messages. However, the device does not boot the new software. Also, when trying to relock the bootloader, the mfastboot oem lock command failes with the error message Not supported command in current status!. I tried to substitute mfastboot with fastboot, changed USB cables and downloaded new copies the images, with no success.
Digging deeper, I found out that I could not wipe cache or data using the stock recovery. This will fail with the error message blkdiscard on partition /dev/block/platform/msm_sdcc.1/by-name/cache failed. Further troubleshooting attempts lead me to try twrp custom recovery software (Version 3.1.1) which I could only start using the mfastboot boot twrp-3.1.1-0-titan.img command since flashing the image as custom recovery will not fail but the phone instantly and silently reverts to stock recovery - even when not rebooting inbetween. Consequently, any attempts to flash an image using the software will fail with E1001: Failed to update system image.
At this point, I have no idea what else I could try. That's why I turn to you, great community of XDA .
Any help would be greatly appreciated.

Need assistance - moto g6 - failed to validate boot image

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.
With a locked bootloader you are not able to flash anything, I believe. How about a factory reset in the recovery?

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