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Motorola Moto G - Flashing stock failing with fastboot

Hello everyone
I am new here.
I need some assistance with my moto g.
I previously unlocked my Moto G's bootloader but realised that I just wanted it on stock and locked so I didn't damage it, so I managed to relock my
phone's bootloader and got it back to a stock rom.
After installing a system update a few days ago, my phone came back with the
"Warning - bootloader unlocked!" logo after installing a system update.
So I decided to try and reflash the stock firmware and original logo.bin from the XDA Site.
However, my flashes are failing and my moto g is stuck in a bootloop with no rom to boot up to, I have adb minimal fastboot and motorola drivers
/ adb drivers installed.
What happens: I power on the phone into bootloader mode, then I try to flash the ROM I got from droid-developers site, but whenever I try to relock
my bootloader it shows the following:
...
Ready to flash signed images!
OK: (time)
I do fastboot flash partition gpt.bin and I get:
Preflash validation failed!
SST lock failure!
Also trying to issue the command to relock the bootloader gives me
SST lock failure!
I get other errors too when flashing the sparsechunk images, it gives: Invalid PIV signed image! and for motoboot and boot images it gives: Preflash validation failed!
version downgraded for boot.
etc
I cannot recover my stock rom due to these errors, I've searched everywhere (on google) and here and I am desperate to flash the stock rom back and relock bootloader again so I can use the phone.
I am really stuck and my phone will not get out of a bootloop
Any help is really much appreciated as I need to get my phone working so I can use it

You don't need to relock the bootloader. Just follow this tutorial:
http://forum.xda-developers.com/showthread.php?t=2542219​

lost101 said:
You don't need to relock the bootloader. Just follow this tutorial:
http://forum.xda-developers.com/showthread.php?t=2542219​
Click to expand...
Click to collapse
I followed the tutorial, but when I get to the flashing stage, I get:
Preflash validation failed,
SST lock failure!
And version downraded for gpt.bin
it seems to be failing to flash these files.
What do I need to do?

You need to provide more information for people to help you. Have you upgraded to 4.4.4?

I had a similar issue when rooting my phone, and all I had to do was unplug the phone from the computer, restart the phone and computer, and then try again.

GrammarNazi said:
I had a similar issue when rooting my phone, and all I had to do was unplug the phone from the computer, restart the phone and computer, and then try again.
Click to expand...
Click to collapse
But did you downgrade from 4.4.4 to 4.4.2?
What model do you have?
Can you explain us all the steps?
Thanks

First unlock your bootloader again. You have to downgrade from 4.4.4 to 4.4.3 then to 4.4.2. During the downgrades you have to follow the same kind of firmware (example: 4.4.4 retail EU -> 4.4.3 retail EU -> 4.4.2 retail EU). When you're done if you want you can relock the bootloader.

[Q] Flashing stock rom error - Moto g

Please help, i tried to install cyanogenmod 12 in my moto g, but because of and error with the ui stopping working i tried to back up, to find that i couldn't because of this error:
(bootloader) Preflash validation failed
FAILED (remote failure)
This happend when trying to flash gpt.bin and motoboot.bin, everything else flashed fine.
If someone out there could help me fix this problem i will be very thankfull.
Thanks.
(sorry for my bad inglish, im not an inglish speaker)

Which moto g do you have? What is your bootloader version?
The motoboot file probably isn't flashing because you're trying to load an older bootloader.

[Q] Stuck on Bootloader Locked Screen

Hey guys
First of all: I think, I ****ed up.
So I was on a custom 5.0.2 Rom and it was really buggy (forceclose, lowmemory, etc.) and so I decided,
that it would be a good idea to go back to stock and flash Slimrom. As far, as I remember, I did the following:
1. Go into my custom recovery and delete everything (I know, I'm an idiot :crying: )
2. Go into fastboot and flash 4.4.4 via a script on my PC
3. Get problems, which I somehow resolve (pls don't ask me, how. I was pretty drunk last night.)
4. 4.4.4 is up and running. I download the stock 5.0.2 OTA files form XDA and try to flash them with TWM.
5. Everything is super buggy under 5.0.2, so I decide to flash back 4.4.4 and use the stock recovery.
6. 5.0.2 runs just fine and I begin to prepare for the custom Slimrom.
7. Install custom recovery, download Slimrom and GApps.
8. Flash Slimrom and get some weird error, that /system and /date can't be mounted. Everything ****ed up from there on...
9. Try to flash the stock 4.4.4 from before (using the script). Doesn't work, gets stuck on bootloader unlocked messege.
10. Try random **** (literally everything, I can find on the web.)
11. Write this post.
Some information, you could need:
XT1032
Fastboot version: 41.18
Unlocked (Status Code: 3)
Boots into recovery
Recovery is TWM 2.8.6.0
Things, I've tried: Flash the stock 4.4.4 system and then flash a custom rom, using TWM Didn't work
Reflash the stock "Kernel Module", found under /showthread.php?t=2649763 Didn't work
Flash an alternate "bootloader unlocked" Screen Didn't work
Please help me, guys :fingers-crossed:

Did you try manually flashing each partition for the 4.4.4 stock ROM? Since you are on a 41.18 bootloader, you should be able to flash every file except motoboot.

audit13 said:
Did you try manually flashing each partition for the 4.4.4 stock ROM? Since you are on a 41.18 bootloader, you should be able to flash every file except motoboot.
Click to expand...
Click to collapse
First of all, thank you for your quick response!
I was able to flash everything without any errors, but unfortunately, it is still stuck on the Warning screen.

Did you erase cache and userdata in fastboot?

audit13 said:
Did you erase cache and userdata in fastboot?
Click to expand...
Click to collapse
Yes, but it did not help
Edit: it gives me an error, when flashing gpt.bin.
it says:
(bootloader) Preflash validation failed
FAILED (remote failure)

So all files flahed except motoboot and gpt? The motoboot file from the stock 4.4.4 flash won't install becuase the 4.4.4 bootloader is older than the bootloader currently installed on your phone.
Even if the gpt.bin file doesn't flash, it doesn't always prevent the phone from booting a stock ROM.
Was the 5.02 ROM the GPE?

audit13 said:
So all files flahed except motoboot and gpt? The motoboot file from the stock 4.4.4 flash won't install becuase the 4.4.4 bootloader is older than the bootloader currently installed on your phone.
Even if the gpt.bin file doesn't flash, it doesn't always prevent the phone from booting a stock ROM.
Was the 5.02 ROM the GPE?
Click to expand...
Click to collapse
When trying to flash the motoboot.img, it says "permission denied" and when trying to flash the gpt.bin, it says "(bootloader) Preflash validation failed FAILED (remote failure)".
The 5.0.2 ROM was the OTA update, which in my case, is the normal motorola one. I did convert my device to a GPE, when Lollipop for the moto G GPE became availible (arround december),
but went back to the normal ROM to get the 5.0.2 OTA.
Thank you for your help :laugh:
Ok, I have used this: http://forum.xda-developers.com/moto-g/development/rom-4-4-4-stock-eu-1-click-easy-flash-t2879757 and i'm back in Stock 4.4.4. I have got no idea, how that worked but it's done

That's great that it worked.
If you want to get 5.02 OTA update, be sure to update Motorola Update Services app in the Play store before checking for updates.

Please Help me Guys.....I've Moto G XT1033 (Indian model Dual Sim)

Guys I've Moto G XT1033 and i've been trying to flash it's stock firmware because it was bricked 3 days ago.....I tried different Firmwares...4.4.4,5.0.2 and 5.1.0 but it doesn't work.....at the starting when I use command "mfastboot.exe flash partition gpt.bin" I'm getting few error like "Version downgraded for primary_gpt" and while using this command "mfastboot.exe flash motoboot motoboot.img" i'm getting this error "version downgraded for tz".......Plz help me
How to add attachments??

resurrecting your device depends on how badly you've bricked it.
how did you brick it in the first place?

just ignore the bootloader and gpt image, its due to the Downgrade you can follow this instructions
https://forum.xda-developers.com/showthread.php?t=2700502&page=64
which work fine on your falcon.

I unbricked my moto G xt1033 asian version but unable to flash.

I unbricked my moto G xt1033 asian version but unable to flash. Stuck on the fastboot mode. When i tried to flash it throws error "preflash validation failed" and "remote failure". I tried all versons of asian firmware and still same. Unable to open recovery as it throws "failed to validate recovery image"..... I need your help guys....