Database Users

XT1575 stuck in bootloop, bootloader is locked, how do I fix my phone?

This phone has not been rooted or unlocked, I was running official MM OTA when suddenly last night it stopped booting. The Moto logo appears and then it goes to black and stays there for eternity while draining battery. I tried going into recovery mode and wiping cache + factory reset, but it didn't help. The "restore-to-stock" tool floating around the internet fails as well:
Test
error: device not found
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.003s]
writing 'partition'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.366s
target reported max download size of 536870912 bytes
sending 'bootloader' (2699 KB)...
OKAY [ 0.061s]
writing 'bootloader'...
(bootloader) flashing aboot ...
(bootloader) flashing sbl1 ...
(bootloader) flashing pmic ...
(bootloader) flashing rpm ...
(bootloader) flashing tz ...
(bootloader) flashing hyp ...
(bootloader) flashing sdi ...
OKAY [ 2.715s]
finished. total time: 2.778s
target reported max download size of 536870912 bytes
sending 'logo' (2001 KB)...
OKAY [ 0.046s]
writing 'logo'...
OKAY [ 0.040s]
finished. total time: 0.090s
target reported max download size of 536870912 bytes
sending 'boot' (40960 KB)...
OKAY [ 0.922s]
writing 'boot'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 1.617s
target reported max download size of 536870912 bytes
sending 'recovery' (41040 KB)...
OKAY [ 0.916s]
writing 'recovery'...
OKAY [ 1.370s]
finished. total time: 2.288s
target reported max download size of 536870912 bytes
sending 'system' (260220 KB)...
OKAY [ 5.515s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
Click to expand...
Click to collapse
If I attempt to unlock the bootloader I get '(bootloader) Check 'Allow OEM Unlock' in Developer Options.' - which I can't do since the phone is bricked.
What can I do?

DrGamut said:
This phone has not been rooted or unlocked, I was running official MM OTA when suddenly last night it stopped booting. The Moto logo appears and then it goes to black and stays there for eternity while draining battery. I tried going into recovery mode and wiping cache + factory reset, but it didn't help. The "restore-to-stock" tool floating around the internet fails as well:
If I attempt to unlock the bootloader I get '(bootloader) Check 'Allow OEM Unlock' in Developer Options.' - which I can't do since the phone is bricked.
What can I do?
Click to expand...
Click to collapse
If you are not rooted or unlocked, time to take it to Motorola... Call em!

Naddict said:
If you are not rooted or unlocked, time to take it to Motorola... Call em!
Click to expand...
Click to collapse
This is my only option then? I was hoping for something faster, but if that's the only option I'll take it.

Problem was solved by flashing the 6.0 stock firmware found here!!!

DrGamut said:
Problem was solved by flashing the 6.0 stock firmware found here!!!
Click to expand...
Click to collapse
I'm in the same exact boat as you. I tried flashing everything under Android 6.0 on that page but no luck. Mine still bootloops. Exactly how did you do it? Thanks

iflyimpilot said:
I'm in the same exact boat as you. I tried flashing everything under Android 6.0 on that page but no luck. Mine still bootloops. Exactly how did you do it? Thanks
Click to expand...
Click to collapse
Another XT1575 user in the same boat. What procedures did you follow?

Moto Downgrade Utility

** View the making of moto downgrade tool at https://youtu.be/xaJKx9Vqdjc ***
Please like and subscribe to my youtube channel to encourage me to create more tools for the members of xda ! I really really appreciate it
Moto Downgrade Tool is a tool that I have quickly created to SAFELY downgrade android marshmallow to android lollipop on the XT1541 model.
You need Python 3.5 installed to run this program !!
make sure your phone is plugged into your pc and in fastboot mode when you start the tool.
INSTALL MOTO DRIVERS BEFORE USING THE TOOL !!!!
ADB and Fastboot is included in the downgrade tool.
Please comment if you have any issues ! This tool has been tested a few times by myself on my phone. , so it is guaranteed to be able to function correctly !
XDA:DevDB Information
Moto Downgrade Utility, Tool/Utility for the Moto G 2015
Contributors
therealduff1
Version Information
Status: Stable
Current Stable Version: 1.0
Created 2016-03-02
Last Updated 2016-03-02

Keep going on Master!
Sorry for the off topic questions
I'm searching a Rom with multi window feature + floating windows apps like last Sammy's roms for XT1541 do you know any?
Currently using last Resurrection Remix from Vatsal that have multi window but not floating windows
One off topic more:
I have XT1541 European version obtained in Spain but I'm using it in Argentina and my mobile connection (4g) its very slow
I have to change the modem or something else?
Thanks a lot mate!
Enviado desde mi XT1541 mediante Tapatalk

fedez said:
Keep going on Master!
Sorry for the off topic questions
I'm searching a Rom with multi window feature + floating windows apps like last Sammy's roms for XT1541 do you know any?
Currently using last Resurrection Remix from Vatsal that have multi window but not floating windows
One off topic more:
I have XT1541 European version obtained in Spain but I'm using it in Argentina and my mobile connection (4g) its very slow
I have to change the modem or something else?
Thanks a lot mate!
Enviado desde mi XT1541 mediante Tapatalk
Click to expand...
Click to collapse
No need to be sorry for off topic questions !
About the rom , i am not to sure about finding a rom with floating windows , but i would like that aswell !
Also , about using a european device in a different location, this is probably due to different network bands. I would NOT reccomend you flash another models modem, as this could hard brick your phone .
I foyu have any other questions, dont hesitate to ask !

I want to downgrade from stock mm(not rooted) to LP, possible?

arun356y said:
I want to downgrade from stock mm(not rooted) to LP, possible?
Click to expand...
Click to collapse
Using my tool , yes ! . Remember not to accept ota tho

How are you doing the downgrade without having the bootloader unlocked???
Also, is this flashing EVERYTHING, including the bootloader and partition table, or is this just a tool to perform the "normal" downgrade of flashing a factory firmware image and skipping gpt.bin and bootloader.img?

therealduff1 said:
Using my tool , yes ! . Remember not to accept ota tho
Click to expand...
Click to collapse
not to accept ota, why? if in future I want to update then?

acejavelin said:
How are you doing the downgrade without having the bootloader unlocked???
Also, is this flashing EVERYTHING, including the bootloader and partition table, or is this just a tool to perform the "normal" downgrade of flashing a factory firmware image and skipping gpt.bin and bootloader.img?
Click to expand...
Click to collapse
This tool flashes SIGNED images, which means it does not need bootloader unlock. Also , it skips gpt.bin and bootloader.img . It is a normal downgrade, but i made this tool for people who dont want to risk bricking their phones typing the wrong command or accidentally flashing gpt.bin or bootloader.img

therealduff1 said:
This tool flashes SIGNED images, which means it does not need bootloader unlock. Also , it skips gpt.bin and bootloader.img . It is a normal downgrade, but i made this tool for people who dont want to risk bricking their phones typing the wrong command or accidentally flashing gpt.bin or bootloader.img
Click to expand...
Click to collapse
So if I use fastboot and flash a lp I just need to skip those 2 files right?

Downgrading from Rooted Stock MM
I have the XT1541 rooted on stock MM, can i downgrade to stock lollipop without bricking the phone ?
I also flashed the squid kernel r15b (latest)

BurningKoala said:
So if I use fastboot and flash a lp I just need to skip those 2 files right?
Click to expand...
Click to collapse
No need to use fastboot if you trust my programming . but yes , skip gpt.bin and bootloader.IMG and you will be fine my program automatically does that

Hello does my xt1541 need to be unlocked and rooted for this tool to work and downgrade from mm to lollipop?

Agiofws said:
Hello does my xt1541 need to be unlocked and rooted for this tool to work and downgrade from mm to lollipop?
Click to expand...
Click to collapse
No root needed !

Luigi_Manga said:
Ok then, I'll try tonight, does this work whit every rom despite the different number of sparsechunks?
Sent from my MotoG3 using Tapatalk
Click to expand...
Click to collapse
Yes it should work perfectly

Didn't work, still on the crappy 6.0
Partition table has been skipped!
Bootloader has been skipped!
target reported max download size of 268435456 bytes
sending 'logo' (917 KB)...
OKAY [ 0.040s]
writing 'logo'...
OKAY [ 0.071s]
finished. total time: 0.114s
boot logo has been flashed
target reported max download size of 268435456 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.649s]
writing 'boot'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 1.183s
boot.img has been flashed
target reported max download size of 268435456 bytes
sending 'recovery' (16484 KB)...
OKAY [ 0.651s]
writing 'recovery'...
OKAY [ 0.961s]
finished. total time: 1.616s
Stock lollipop recovery has now been flashed
target reported max download size of 268435456 bytes
sending 'system' (262140 KB)...
OKAY [ 10.071s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.515s
System part 1 has been flashed
target reported max download size of 268435456 bytes
sending 'system' (262143 KB)...
OKAY [ 10.079s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 10.124s
System part 2 has been flashed
target reported max download size of 268435456 bytes
sending 'system' (232632 KB)...
OKAY [ 8.988s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 9.060s
System part 3 has been flashed
target reported max download size of 268435456 bytes
sending 'system' (233355 KB)...
OKAY [ 8.971s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 9.014s
System part 4 has been flashed
target reported max download size of 268435456 bytes
sending 'system' (257122 KB)...
OKAY [ 9.884s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 9.927s
System part 5 has been flashed
target reported max download size of 268435456 bytes
sending 'system' (236089 KB)...
OKAY [ 9.090s]
writing 'system'...
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 9.124s
System part 7 has been flashed
system partitions successfully flashed
target reported max download size of 268435456 bytes
sending 'modem' (36940 KB)...
OKAY [ 1.423s]
writing 'modem'...
OKAY [ 0.994s]
finished. total time: 2.423s
Flashed Mobile Data Connection Chip Data
erasing 'modemst1'...
OKAY [ 0.019s]
finished. total time: 0.021s
erasing 'modemst2'...
OKAY [ 0.014s]
finished. total time: 0.015s
Old data erased
target reported max download size of 268435456 bytes
sending 'fsg' (2031 KB)...
OKAY [ 0.083s]
writing 'fsg'...
OKAY [ 0.083s]
finished. total time: 0.169s
Flashed FSG
erasing 'cache'...
OKAY [ 0.019s]
finished. total time: 0.021s
cache erased
erasing 'userdata'...
OKAY [ 0.199s]
finished. total time: 0.201s
userdata partition formatted
rebooting...
finished. total time: 0.006s
flash finished
***PLEASE READ BELOW***
YOU MUST NOT ACCEPT ANY OTA UPDATES ON YOUR PHONE WHILE IT IS RUNNING LOLLIPOP
OR YOU ARE RISKING A HARD BRICK DUE TO UPGRADING THE BOOTLOADER WHICH IS AT A DI
FFERENT VERSION
THAN EXPECTED
and thats all !
enjoy lollipop again!
Press any key to continue . . .
Click to expand...
Click to collapse

Sorry for the noob question but does the bootloader have to be unlocked?

BurningKoala said:
Didn't work, still on the crappy 6.0
Click to expand...
Click to collapse
Agiofws said:
Sorry for the noob question but does the bootloader have to be unlocked?
Click to expand...
Click to collapse
Downgrade using fastboot it's not possible without unlocked bootloader, that's why I think it didn't work.

coolizard said:
Downgrade using fastboot it's not possible without unlocked bootloader, that's why I think it didn't work.
Click to expand...
Click to collapse
I flashed mine using a locked bootloader

BurningKoala said:
Didn't work, still on the crappy 6.0
Click to expand...
Click to collapse
Ok right , this is a problem with the image, not my program . Are you flashing the correct image for your phone ?

therealduff1 said:
Ok right , this is a problem with the image, not my program . Are you flashing the correct image for your phone ?
Click to expand...
Click to collapse
Yes, I flashed the xt1541 vodafone EU that was on my phone (now I'm on vodafone 6.0), did you think that it's better I flash the no brand eu version?
edit: same errors with the retail eu

"(bootloader) Preflash validation failed" - Moto G4 Plus

My Moto G4 Plus has now no OS installed on it. I'm currently following a site (Stock Firmware of Moto G4 and Moto G4 Plus) to flash it back to stock. Right now i'm stuck at the last step (I skipped step 5 just to be sure of that each command is working). 1st command was working, but then 2nd command is got this:
Code:
C:\adb>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.000s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.053s
C:\adb>
Seems like this has been happening to older Moto G version (like Moto G 3 Gen, Moto E).
Can anybody help me, i'm really stuck and can't get anything to work. :crying:

http://www.filefactory.com/folder/c6cdedc45a775d27/?sort=created&order=DESC&show
Enviado desde mi Moto G (4) mediante Tapatalk

Aqryllic said:
My Moto G4 Plus has now no OS installed on it. I'm currently following a site (Stock Firmware of Moto G4 and Moto G4 Plus) to flash it back to stock. Right now i'm stuck at the last step (I skipped step 5 just to be sure of that each command is working). 1st command was working, but then 2nd command is got this:
Code:
C:\adb>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.000s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.053s
C:\adb>
Seems like this has been happening to older Moto G version (like Moto G 3 Gen, Moto E).
Can anybody help me, i'm really stuck and can't get anything to work. :crying:
Click to expand...
Click to collapse
Apparently you're trying to downgrade or install the wrong version of the firmware. The firmware has exactly to meet the version of your phone. So, for instance, for an XT1642 you flash software for an XT1642 and not for an XT1644. Read carefully and flash every file one by one in the exact order. And be sure your bootloader is unlocked.
Send with my Moto G4 Plus (XT1642) using Tapatalk!

rsd light 6.2.4 and fiemware
leave firmware zipped open rsd click browse and click firmware and then click unpack and start flashing ......works every time

Preflash validation failed error while flashing partition
I m also in trouble. Anybody please help.
I:\MOTO\ROMS\STOCK\G4_XT1641-XT1643_ATHENE_6.0.1_MPJ24.139-13.1_cid50_subsidy-DEFAULT_CFC.xml>fastboot flash partition gpt.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slotartition: not found
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.074s

vishnucr3000 said:
I m also in trouble. Anybody please help.
I:\MOTO\ROMS\STOCK\G4_XT1641-XT1643_ATHENE_6.0.1_MPJ24.139-13.1_cid50_subsidy-DEFAULT_CFC.xml>fastboot flash partition gpt.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slotartition: not found
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.074s
Click to expand...
Click to collapse
Your downloaded ROM is 6.0.1_MPJ24.139-13.1 , and its too old, which means you are downgrading firmware version.
Downgrading of gpt and bootloader is not possible, also it may cause problems to you.
Download latest firmware and flash it..

Hello. Edit your "flash.xml" from firmware and delete line related to "gpt.bin".
Reflash your firmware with rsdlight using flash.xml

moto g4 plus xt1643 stuck on fastboot mode
my moto g4 plus is bricked it was only showing
AP Fastboot Flash Mode (secure)
BL: B1.06(*) (sha-0edfb0d. 2017-06-01 12 : 10 : 43)
Baseband:
Product/Variant : athene_16mp 000000000000000 32gb P2A
Serial Number : 26da663
CPU : MSM8952
eMC : 32GB MICRON Q3J97V RV=08 PV=10 FV=00000000000000000A2
DRM : 3GB MICRON LP3 DIE=6GB M5=03 M6=00 M7=00 M8=7B
Console {NULL} : null
Tools Mode Config : DISABLED
Battery OK
oem_locked
Software Status : Modified
connect usb data cable
and i downloaded latest firmware of moto g4 plus xt1643 <Moto_G4_Plus_XT1643_ATHENE_MPJ24.139-63> it says that
(bootloader) Not in unlocked state
OKAY [ 0.028s]
finished. total time: 0.031s
C:\Users\shaikh\Downloads\mfastboot-v2>fastboot oem lock begin
...
(bootloader) Not in unlocked state
OKAY [ 0.860s]
finished. total time: 0.952s
C:\Users\shaikh\Downloads\mfastboot-v2>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.016s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 1.110s
i checked many times that i was flashing a correct rom of correct model number
and i also flash a latest versions and old versions roms of moto g4 plus
NOW WHAT I DO PLZZZZZZZZZZZ HELP PLZZZZZZZZZZZZZZZZZZZZZ

nawazsk611 said:
my moto g4 plus is bricked it was only showing
AP Fastboot Flash Mode (secure)
BL: B1.06(*) (sha-0edfb0d. 2017-06-01 12 : 10 : 43)
Baseband:
Product/Variant : athene_16mp 000000000000000 32gb P2A
Serial Number : 26da663
CPU : MSM8952
eMC : 32GB MICRON Q3J97V RV=08 PV=10 FV=00000000000000000A2
DRM : 3GB MICRON LP3 DIE=6GB M5=03 M6=00 M7=00 M8=7B
Console {NULL} : null
Tools Mode Config : DISABLED
Battery OK
oem_locked
Software Status : Modified
connect usb data cable
and i downloaded latest firmware of moto g4 plus xt1643 <Moto_G4_Plus_XT1643_ATHENE_MPJ24.139-63> it says that
...
<snip>
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 1.110s
i checked many times that i was flashing a correct rom of correct model number
and i also flash a latest versions and old versions roms of moto g4 plus
NOW WHAT I DO PLZZZZZZZZZZZ HELP PLZZZZZZZZZZZZZZZZZZZZZ
Click to expand...
Click to collapse
From the looks of it you used the blankflash for the B1:06 bootloader. The reason you're getting the pre-flash validation error is that the MPJ24.139-63 firmware is too old to flash onto your device (that's the Marshmallow 6.0 July 2016 patch, not the latest unless you're wanting Marshmallow), whereas you have at least the June 2017/Sept 2017 bootloader on your device.
I would strongly recommend you flash the latest stock ROM we have, which is here: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138 You can either flash the NPJS25.93-14-13 firmware as in the main post, or towards the end of the post, there are links for NPJS25.93-14-18 (April 2018 security patch): https://forum.xda-developers.com/showpost.php?p=76416801&postcount=785
If you really want to use Marshmallow, you could in theory flash without flashing GPT and bootloader, but you must not use OTA updates. If you want to update, you need to flash stock firmware.

If you want MM... YOU should 1st flash latest nougat... And then.. Boot into twrp don't flash it.. Just boot... And then wipe system, dalvik, data, cache.. And then flash MM.. without flashing gpt.bin and bootloader..
And as suggested by @echo92 you should not take any OTAs.. You'll brick your device..

flash was succesfully done by following your steps (BIG THANKS FOR THAT)
but phone is not turning on after reboot
it comes with motorola logo and then it will automatic turn of and now only led was blinking
and when i press power + volume up button at 1 minute then motorola logo was reappear and
then the same process was happening
and in device manager it was showing qualcomm loader 900 or something like this i didn't remember
what is the solution

nawazsk611 said:
flash was succesfully done by following your steps (BIG THANKS FOR THAT)
but phone is not turning on after reboot
it comes with motorola logo and then it will automatic turn of and now only led was blinking
and when i press power + volume up button at 1 minute then motorola logo was reappear and
then the same process was happening
and in device manager it was showing qualcomm loader 900 or something like this i didn't remember
what is the solution
Click to expand...
Click to collapse
Hmm, is this with a locked bootloader or unlocked bootloader?
What steps did you use, just for clarification? Did you flash the stock ROM with or without re-locking instructions?
Are you able to boot to the bootloader still (using power and volume down whilst your device is powered off)?

I am sending you a video after flashing my moto g4 plus xt1643
It was like bootloop happening
This is a link that i uploded on youtube after flashing
https://m.youtube.com/watch?v=v0sT45xXcuw

nawazsk611 said:
I am sending you a video after flashing my moto g4 plus xt1643
It was like bootloop happening
This is a link that i uploded on youtube after flashing
https://m.youtube.com/watch?v=v0sT45xXcuw
Click to expand...
Click to collapse
From the video I see no bootloader unlocked screen, which suggests your bootloader is locked.
Can you confirm if you performed all the flashing steps and they were reporting [okay]? A locked bootloader is quite strict and will not let you boot with custom firmware or stock firmware from other builds (must be the same build). I'd recommend booting to the bootloader and reflashing the stock ROM again. Please keep the log and look for any errors. At this stage I would forget marshmallow and focus on flashing the latest stock Nougat ROM.
If a reflash does not work, you may have a hardware error which only a service centre can fix. A boot loop with a locked bootloader suggests either a bad flash or bad hardware.

[FIX]Just restore from a twrp backup
Aqryllic said:
My Moto G4 Plus has now no OS installed on it. I'm currently following a site (Stock Firmware of Moto G4 and Moto G4 Plus) to flash it back to stock. Right now i'm stuck at the last step (I skipped step 5 just to be sure of that each command is working). 1st command was working, but then 2nd command is got this:
Code:
C:\adb>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.000s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.053s
C:\adb>
Seems like this has been happening to older Moto G version (like Moto G 3 Gen, Moto E).
Can anybody help me, i'm really stuck and can't get anything to work. :crying:
Click to expand...
Click to collapse
So i had the same problem with you, had tried to solve it for 12 hours straight and FINALLY I found a solution: search the internet for a TWRP backup and restore your phone to it. I managed to find one, but i have a z2 play. Hope you can find one as well.

i was downloaded latest firmware of moto g4 plus as you given a link of download now it was showing with this message
C:\Program Files\Minimal ADB and Fastboot>fastboot flash system system.img_sparsechunk.0
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:system: not found
target reported max download size of 536870912 bytes
sending 'system' (261013 KB)...
OKAY [ 11.739s]
writing 'system'...
(bootloader) Failed to flash sparse image
FAILED (remote failure)
finished. total time: 14.474s
WHAT IS THE SOLUTION !!!!!

Aqryllic said:
My Moto G4 Plus has now no OS installed on it. I'm currently following a site (Stock Firmware of Moto G4 and Moto G4 Plus) to flash it back to stock. Right now i'm stuck at the last step (I skipped step 5 just to be sure of that each command is working). 1st command was working, but then 2nd command is got this:
Code:
C:\adb>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.000s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.053s
C:\adb>
Seems like this has been happening to older Moto G version (like Moto G 3 Gen, Moto E).
Can anybody help me, i'm really stuck and can't get anything to work. :crying:
Click to expand...
Click to collapse
Bro try using the RSD-Lite . I had the same issue. I flashed the same ROM using RSD-Lite and it all worked fine.
Use this guide https://www.rootjunky.com/rsd-lite-mac-linux/

Please flash gtb.bin and bootloader.img of stock Rome npjs25.93.14.18. If you need these files please email me your mail I'd on [email protected]. I will mail these files.

Phpatel2003 said:
Please flash gtb.bin and bootloader.img of stock Rome npjs25.93.14.18. If you need these files please email me your mail I'd on edited. I will mail these files.
Click to expand...
Click to collapse
Please note these files are also available here: https://drive.google.com/drive/folders/0B-GUyOfb8OgzcUl1NUtHYWNIR2M or from the stock ROM provided here: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
I would also remove your email address to limit spammers and potential threats to your email security. If a member needs your contact details, I'm sure they can private message you.

Bro...my phone moto g4 plus .I install marshmallow 6.0 something it's showing nougat update then I did download and install after installing now it's time to reboot it's switched off its showing led blinking not switched on then I was searching for solution then I got the blankflash file and tried it's open fastboot mode but no OS installed then I did tried marshmallow but not install then I was tried latest updated nougat it's installed working perfectly.after one day I got security patch update its 40MB .I did download and install then after installing it's time to reboot phone switched off its led blinking not switched on.then I did tried all previous blankflash including latest updated blankflash 8.1.0 anthena file but not working for me it's says something errors.
Please please help me ..I haven't any another mobile only one phone that's now hardbricked ...please:crying:

cant flash my moto g4 plus

C:\adb>mfastboot flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.043s

gpav11 said:
C:\adb>mfastboot flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.043s
Click to expand...
Click to collapse
It seems you are trying to downgrade your bootloader , which is not possible for now with the normal flashing method. And another thing dont play with gpt and bootloader if you dont want your device in hard brick. !

Start reading from post no. #14
http://forum.xda-developers.com/mot...rce-thread-t3386584/post67076984#post67076984

i got these errors
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: 0.063s
C:\adb>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.513s]
writing 'boot'...
(bootloader) Image not signed or corrupt

C:\adb>fastboot oem lock
...
(bootloader) Still require signed boot.img
OKAY [ 0.000s]
finished. total time: 0.016s

gpav11 said:
i got these errors
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: 0.063s
C:\adb>fastboot flash boot boot.img
target reported max download size of 536870912 bytes
sending 'boot' (16384 KB)...
OKAY [ 0.513s]
writing 'boot'...
(bootloader) Image not signed or corrupt
Click to expand...
Click to collapse
Did you read the thread i posted link in above reply...?
It says you have wrong file, download the correct file....

gpav11 said:
C:\adb>mfastboot flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.043s
Click to expand...
Click to collapse
Idk what does @__Madddy wants to say, but here's the deal. You cannot downgrade gpt.bin. Also, if it says "signed image is corrupted" don't worry. It still got flashed. Seems like moto is trying to give us the impression that something is wrong but nothing like that. Just flash and boot up. But if your are trying to flash TWRP, don't boot up. Instead, go straight to the recovery by pressing volume down button 2 times and then pressing the power button the moment after it is flashed. When you flash TWRP and you normally bootup while in stock ROM , the stock ROM replaces your TWRP recovery with stock recovery.
Hope I have helped.

PseudoDev said:
Idk what does @__Madddy wants to say,
Click to expand...
Click to collapse
@__Madddy is trying to tell him that he cannot flash the gpt partitioning data over an older one.
gpav11 said:
flash partition gpt.bin
Click to expand...
Click to collapse
This doesn't mean he's flashing TWRP.
If he flashed TWRP and got the error, then what you're saying is correct.

zeomal said:
@__Madddy is trying to tell him that he cannot flash the gpt partitioning data over an older one.
This doesn't mean he's flashing TWRP.
If he flashed TWRP and got the error, then what you're saying is correct.
Click to expand...
Click to collapse
No, he just linked to another post asking him to read from post 14. If you see that, although this error is mentioned but the REASON for the bug is not mentioned. In that post, it's just a guy who flashed the wrong stock ROM and that's it.
I think
@gpav11 wants to know why he couldn't do it and so I explained the reason why he couldn't do it. Also, I mentioned about TWRP just in case. I clearly didn't mean he was going to flash it cause is added the word "but".

PseudoDev said:
Idk what does @__Madddy wants to say,
Click to expand...
Click to collapse
As i said start reading from post 14.. he had same problem and see next post what reply he got, and solved his problem, read 19th post...

Team,
I tried the rom given in the link also.
Still i get the issue of not able to lock the bootloader
Please help.
i used this G4_XT1641-XT1643_ATHENE_6.0.1_MPJ24.139-13.1_cid50_subsidy-DEFAULT_CFC.xml.zip which doesnt give an update after the flashing but gives me errors and cant lock the phone back.
i used this one also XT1626-XT1640-XT1641_ATHENE_6.0.1_MPJ24.139-23.1_cid50_subsidy-DEFAULT_CFC.xml.Zip , update after flashing but it also gives me the same errors and cant lock the phone back.

Can not flash Stock Image

I will flash the latest POTTER_NPN25.137-35_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip but i get every time a failed.
Code:
D:\Software_Tools\Multimedia\Handy-Taplet\Handy\Backup\Download\Rom\G5Plus\POTTER_NPN25.137-35_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml>mfastboot flash partition gpt.bin
target max-sparse-size: 256MB
sending 'partition' (45 KB)...
OKAY [ 0.000s]
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: 0.078s
D:\Software_Tools\Multimedia\Handy-Taplet\Handy\Backup\Download\Rom\G5Plus\POTTER_NPN25.137-35_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml>
D:\Software_Tools\Multimedia\Handy-Taplet\Handy\Backup\Download\Rom\G5Plus\POTTER_NPN25.137-35_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml>fastboot flash bootloader bootloader.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:bootloader: not found
target reported max download size of 536870912 bytes
sending 'bootloader' (5115 KB)...
OKAY [ 0.109s]
writing 'bootloader'...
(bootloader) Validating 'bootloader.default.xml'
(bootloader) Security version downgrade
(bootloader) Image aboot failed validation
(bootloader) Preflash validation failed
(bootloader) Cancelling 'bootloader.default.xml'
FAILED (remote failure)
finished. total time: 0.390s

I recently flash the stock rom using this method, is the easiest way.
https://youtu.be/qjbU72RH_Rk
Hope this helps you...

That video is over a year old and the AFH firmware listed for G5+ isn't as complete as the latest official list here, also you don't need to install certain utilities he mentions.
HOW TO UNBRICK MOTO G5 PLUS AND RESTORE TO STOCK
I'd recommend that 4-27-17 article meant just for our phone containing a link to a toolkit with everything you need including the POTTER_NPN25.137-35 firmware. Your variant's firmware may be different though. so check in settings and get the correct one at the above link I gave, if necessary. I've successfully restored to stock several times using this method.

I have a EU Version i think. Have buy in Austria. Have download .35 but its 7.0 and not 7.1. Security Patch show me January 2017? Befor i have unlock the Bootloader its have show me March 2017 i think.

hi will it work ?
will it work definitely ?