yashsingh1/xdaforums huggingface dataset:
[Moto G 2015 General] leo88sandy:
preflash validation failed

"preflash validation failed" ERROR coming after giving FLASH PARTITION command .. whats the reason? what can i do now ? Plz Help
[Moto G 2015 General] lost101:
You are attempting to downgrade. You cannot do this with a locked Bootloader.
[Moto G 2015 General] twistergear:
ooopppsss!
[Moto G 2015 General] leo88sandy:
bro, my boot loader is unlocked , status code : 3 , software status : modified
[Moto G 2015 General] lost101:
These are Factory Firmware Images. They are not supposed to be used for downgrading. They are only meant to be used to upgrade phones. There is no guarantee downgrading will work at all, and can destroy your phone in the process.

If your Bootloader is already unlocked, then there is nothing you can do to make your phone accept the Firmware Image.
[Moto G 2015 General] ASHLEY117:
This may answer my question as well then.

Unlocked bootloader and when I flash 6.0.1 xt1541 following you're guide it will not boot or flash bootloader. Sticks in a loop between stock recovery "erasing" and bootloader unlocked warning.

Would relocking bootloader help?
[Moto G 2015 General] lost101:
Are you doing a 'Factory data reset' in Stock Recovery prior to flashing? It would help to see a log of the flashing process. Copy and paste command prompt screen. Take screenshots if necessary.
[Moto G 2015 General] ASHLEY117:
I flash stock recovery and full wipe prior to flashing and only happens when flashing 6.0.1.

I'll post screenshots and logs when I get home later.
[Moto G 2015 General] russrn16:
i Have the same problem as you. I just realised that, on lost101's guide there was no line for:

system.img_sparsechunk.7

just flash that and everything will work.

and also there is a file called :

"slcf_rev_b_default_v1.0.nvm"

i dunno if i should flash it.
[Moto G 2015 General] lost101:
I've added two extra sparsechunk commands in OP to cover this in future.
[Moto G 2015 General] ASHLEY117:
I always check before flashing and flash all sparsechunks. Its only bootloader fail. Preflash check is OK and everything else flashes fine.
[Moto G 2015 General] evnee:
mhm... got a question.

i bought this phone, with boot loop.

i reflashed the stock rom successfully

still bootloop

i cant get into recovery (nothing happens)

i cant unlock bootloader(allow oem unlock option wasnt turned on and i cant get into system)

what should i do now? i have time to wednesday to get my money back
[Moto G 2015 General] ExaHamza:
Two questions

1.Why the bootloader is not relocked?

I have used this guide to flash firmwares on Windows, but on Ubuntu I'm facing a problem, when my smartphone is on is recognised, but on bootloader mode no.

On bootloader logs shows USB Connected, but no command is recognised.

Sorry for my bad English!:silly:
[Moto G 2015 General] Tel864:
Try '"fastboot devices" again after you get into bootloader. Sometimes that works or run fastboot as root/sudo
[Moto G 2015 General] acejavelin:
The bootloader cannot be relocked, there is no need to anyway.

Use 'sudo fastboot xxxx' for the commands or 'sudo su' prior to issuing fastboot commands.

Also, if you are using the Ubuntu repository package for fastboot, it's an older version... Try updating to the current one.
[Moto G 2015 General] lost101:
New FAQ entry added:

Fastboot in Linux is not working?

In Linux, root access is required for Fastboot and/or ADB to work.

sudo fastboot devices​
[Moto G 2015 General] ExaHamza:
Solved by running as root!

Now why we are not able to relock bootloader?

Is there anything wrong with bootloader?

A few months back, I'm no longer user root, I'm satisfied with Stock ROM, and I don't need any tricks more, that's why I want to relock, but I just can't do it!!
[Moto G 2015 General] Tel864:
That's just the way it is. Once you unlock a Moto, it sets that status and it can't be undone. You will always be unlocked.
[Moto G 2015 General] WarMiguel:
suban la version 6.0.1 para el xt1542 por favor
[Moto G 2015 General] Tel864:
If it's not listed in the firmware images thread then its not available. Also English only please.
[Moto G 2015 General] WarMiguel:
I am sorry jeje and thanks for information
[Moto G 2015 General] Gravemind2015:
Probably the screen is the culprit. Many have reported boot loop with these outsider-made-screens.You can try finding an original oem one,at least to boot into android to enable oem unlock and subsequently unlock it, then reflash everything. I can't guaranty it will work with present screen. Can the phone be returned back? If so, it would be a good idea if you are seriously investing in the phone.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] lost101:
[MENTION=7470457]qwertyiapine[/MENTION] - The replacement screen is the cause of the bootloop. It would boot correctly if Android 5.1.1 was still on the phone. As already suggested, the only way (now) out of this situation is to get an original Motorola screen.

Related: http://xdaforums.com/2015-moto-g/help/screen-digitizer-giving-bootloop-t3369386
[Moto G 2015 General] qwertyiapine:
Thank you Gravemind2015, and lost101 for your replies, I agree that the screen is most likely at fault here.

Is there anything specific to look for on a generic screen that differs from a genuine oem part to differentiate between the two?

I decided to go ahead and remove the screen, and plug the phone into the charger as I do not think it has much charge, my theory being that the screen will not light up when the phone wakes so the battery may get a chance to charge up.

I also wondered if the phone would start up without the screen.

After some rumbles from the buzzer at the same intervals as the phone did when the screen went on and off the phone went quiet, I pressed the power button, nothing happened, then I pressed it again and I heard the distinct 'click' sound phones make when you lock the screen.

I connected the screen ribbon but the phone buzzed and reset, but the logo began to animate and the phone booted up and presented me with the language selection page on initial setup.

I could not keep the screen steady and the ribbon in the connector to lock the cable in place and it went off.

I was back with the boot loop, and several attempts to successfully repeat what I did has resulted in a screen that will no longer come on.

I don't know if the screen has had it, or the phone.

I saw the tiny ribbon that connects onto the flexi at the top of the screen had come out so I put it back, but nothing from the screen.

The phone will buzz when connected ton a charger.

I either caught the phone just at the right time, or the screen does work with the phone and something else is causing the loop.

I was dubious about buying a scrfeen in case the phone was account locked. At least I know it is not.

The issue now is that the only oem screen I can find for sale is from a seller in the US on ebay. total including shipping is £52.90p and I do not even know if it will work.

It is a lot to gamble, and the phones can be had new with warranty for £129.

As was already suggested is the phone needs a screen to get the bootloader unlocked, then it can be downgraded with a cheaper screen fitted. I think mine has fried.

I don't mind buying the oem screen, it is the £24 shipping I don't like!

I am surprised that there is a real lack of genuine parts when doing a search online.

Do any of you know a UK retailer?

Thanks for your help.
[Moto G 2015 General] lost101:
[MENTION=7470457]qwertyiapine[/MENTION] - Expect the price of Osprey handsets to be discounted substantially by retailers in the very near future. Moto G (4th Gen) launch event is tomorrow. It makes no sense spending that much to repair the handset at this time.
[Moto G 2015 General] qwertyiapine:
Yes, it is not worth spending that much.

Another lemon.......:(

If anybody knows a retailer of oem screens I would like to hear from you.
[Moto G 2015 General] Cottand:
Stuck on bootloop after flashing 6.0

Ok, right thread this time: I was trying to flash 6.0.1 in my XT1541 1GB and I entered a bootloop, so I tried 6.0, same result, and then finally flashed 5.1.1 retail ES, and this time it worked. After that I tried to update to 6.0 OTA and I got a bootloop again. So I looked through the fastboot output and noticed this error:

C:\Users\Cottand\5.1.1 ES>fastboot flash partition gpt.bin
(bootloader) has-slot:partition: not found
target reported max download size of 268435456 bytes
sending 'partition' (32 KB)...
OKAY [ 0.005s]
writing 'partition'...
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.357s

What is gpt.bin? I get this error when flashing 5.1.1 too and no bootloop there, so is it really caused by this? I'd appreciate any help, thanks in advance.

EDIT: Ok, it must be because I have a different screen since mine got shattered:

http://xdaforums.com/2015-moto-g/help/screen-digitizer-giving-bootloop-t3369386/page2
[Moto G 2015 General] samirza692:
why my moto is rebooting while connecting to wifi or when i sign in with my id after flashing android 6.0.1 i have moto g xt 1550 2gb ram plz help me. i flash rom on 5.1.1 with skipping gpt.bin and bootloader.img
[Moto G 2015 General] himadridas1992:
how to relock bootloader when flashing stock rom??

how to relock bootloader when flashing stock rom?? -moto g3 xt1550
[Moto G 2015 General] Gravemind2015:
You can't relock it, at least for now, fastboot oem lock doesn't work. But even if it works, you won't get back warranty because motorola knows you have requested and got your bootloader unlock key.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] ivekkia:
Do i need to have root access or unlocked bootloader to perform this operation ?
[Moto G 2015 General] Acetyloaceton:
If you want to update to next version then no :)
[Moto G 2015 General] lost101:
[MENTION=5928453]pcorrea[/MENTION] - Flash the latest available firmware image.

No. Instructions are in first post.
[Moto G 2015 General] Kamaltyson:
:confused::confused::confused::confused:iam unlocked my boot loader in my moto g3 running 6.0.1...after i try to flash twrp to root ..but it is no worked ..so i use king root app to root my phone root installed successfully ...but my sims signels are not showing ...so i do hard reset ...after phone is on and stucks at language selection what should i do
[Moto G 2015 General] Tel864:
Didn't you also ask this in the Help forum?
[Moto G 2015 General] nandofer:
never use kingroot. :/
[Moto G 2015 General] ExaHamza:
Follow the instructions on this thread to flash the stock again, but if you want to continue using twrp skip <fastboot flash recovery recovery.img> command!
[Moto G 2015 General] piruzinho:
After successfully doing this, is there a way to actually get root back?

I tried flashing SuperSU and i was stuck on the booting screen.

Or is this ROM not able to be rooted?
[Moto G 2015 General] ExaHamza:
Look in the proper thread! Or post on Troubleshooting to get more help
[Moto G 2015 General] nandakis4:
HELP please :

http://xdaforums.com/2015-moto-g/help/stuck-screen-erasing-t3395223

i used Moto utility, where he used similar commands to flash a Stock firmware, but thing i was into is I DIDNT RESET MY DEVICE before flashing new STOCK ROM , i think it might be reason i am left at ERASING.. , so please can anyone say me what to do ?? after seeing my post .. please
[Moto G 2015 General] nandakis4:
problem solved bro, in that moto utility there is no code for sparsechunk.7 .. i have seen it just now.. when i compared the code to yours :D

thankyou very much for this post :) finally got my phone back :D
[Moto G 2015 General] dimischiavone:
Hi folks, i wish to know if there is a way to lock moto g 2015 bootloader without flashing stock signed rom. I am really concerned about security and would like to have frp protection enabled if someone steals my device. Obviously that protection is useless with an unlocked bootloader. I would like to be able to have a locked bootloader while running cm 13 if possible.

Inviato dal mio MotoG3 utilizzando Tapatalk
[Moto G 2015 General] Gravemind2015:
You can't lock it even if you revert to stock one.;).

Broadcasted from Zeta Reticuli
[Moto G 2015 General] dimischiavone:
Yes you can lock it with fastboot oem lock begin flash signed rom and after that with fastboot oem lock i already did that. I want to know if you can run custom roms with locked bootloader on this device. On other devices you can do it, the only downside would be unlocking it again every major update (unlocking wipes data) but i can live with that.

Inviato dal mio MotoG3 utilizzando Tapatalk
[Moto G 2015 General] lost101:
You are mistaken. Bootloader unlock is permanent. Fastboot oem lock does not change that. FRP protection no longer exists for you. Anyone can steal your phone, and wipe it for re-use.

If you want FRP protection, do not unlock Bootloader on your next phone.
[Moto G 2015 General] dimischiavone:
The permanent part of this process is that Motorola knows you have unlocked your bootloader and warranty is void. Do you even understand my question? I am not interested in restoring locked bootloader status but to prevent unauthorized people from flashing new recovery. I am 100% sure of what i am saying because i tested this. I locked bootloader and reflashed stock rom and recovery. Then i wiped my device from recovery and not from android(frp is triggered if you wipe from recovery) and at boot i was asked my previous account.

Inviato dal mio MotoG3 utilizzando Tapatalk
[Moto G 2015 General] lost101:
[MENTION=7525252]dimischiavone[/MENTION] - You are off-topic as your question has nothing to do with flashing factory firmware images. I have already provided an answer, if you wish for another opinion - start a thread in Q & A.
[Moto G 2015 General] Chandresh204:
deleted
[Moto G 2015 General] crispyginn78:
Just Checking...

This thread looks pretty straightforward, but I've made mistakes with Moto phones before (flashed wrong SBF to a Defy a few years ago), and have generally stuck with HTC.

Background: I purchased a phone off eBay that seems to have had wrong firmware/recovery/boot.img flashed (splash screen is different to my wife's phone), so at the moment nothing works apart from fastboot.

Does it matter if I don't flash the same android version as was previously installed (that's where I screwed up with the SBF)?

I've matched the CID and model type (2GB ram) and downloaded the 6.0.1 firmware image (XT1541_OSPREY_RETEU_2GB_6.0.1_MPI24.107-55_cid7_subsidy-DEFAULT_CFC). I'm assuming that as everything is being wiped and re-flashed from scratch with a factory image, the previous firmware is irrelevant.

Thanks to anyone that can confirm.
[Moto G 2015 General] ExaHamza:
Sorry bro, but are you sure?

Because I unlocked my phone and I have resected so many times via recovery (official and TWRP) and during the setup process FRP was there.
[Moto G 2015 General] lost101:
[MENTION=4570132]crispyginn78[/MENTION] - You must be sure beyond doubt which model Moto G you have. Flashing the wrong Bootloader will probably destroy the phone beyond repair. Otherwise, simply flash the latest available firmware image.

What is FRP? What is not FRP? Your handset does not have full FRP. Anyone can steal your handset, access every partition on your phone via TWRP and erase the FRP partition. You do not have the feature known as 'FRP' as the phone is completely open to exploitation. A handset that has never been bootloader unlocked is not vulnerable in this way and has full and complete Factory Reset Protection.
[Moto G 2015 General] ExaHamza:
How they will install or boot TWRP if my device's bootloader is locked?
[Moto G 2015 General] lost101:
You have unlocked your Bootloader. You can never undo that. Anyone can pick up your phone, 'fastboot oem unlock' and flash TWRP.

Your phone is completely insecure and there is nothing you can do to change that. 'fastboot oem lock' is purely superficial and ultimately meaningless. It does not suddenly make your phone impossible to compromise.
[Moto G 2015 General] ExaHamza:
Please check here http://xdaforums.com/2015-moto-g/general/guide-relocking-bootloader-t3398470
[Moto G 2015 General] acejavelin:
It is best to flash the same version, or go newer... it is highly recommended, and not supported, to do down in versions. I am not sure why flashing the same version on your old HTC would cause a problem, I have had many HTC devices in the past and in a stock locked/S-ON device flashing the same as was installed version was never an issue.

Due to the state of the phone I would flash the latest XT1541 EU version, remembering to follow every step including factory resetting. If you can't access recovery, I would use the fastboot commands "fastboot erase cache" and "fastboot erase userdata" before starting the process...

Remember that some of the erase commands take some time, in some cases 10 minutes or more... Also remember that he first boot takes an excruciating long time, sometimes over 15 minutes where it appears to be doing nothing at all, just be patient (OK, maybe it's not really 15 minutes, but it seems like forever).
[Moto G 2015 General] Ass kicker:
moto g3 xt1550 india dual sim my IMEI-oo not showing IMEI. network not working and e

moto g3 xt1550 india dual sim my IMEI-oo not showing IMEI. network not working and everything working well
[Moto G 2015 General] Facebooook:
I have moto g turbo xt1557.

I flash full 6.0.1 stock rom via fastboot and lock the bootloader. And phone booted well and working fine.but when i want to go recovery mode it show no command.I tried two times flas whole rom via fastboot.

Please any one help me.
[Moto G 2015 General] Ass kicker:
i need help here

moto g3 XT1550 India Dual Sim. No IMEI in my mobile emergency Network,can anyone know that how to fix. I AM GOING TO BE CRAZY whole day, week. i am searching solution maybe i will going to donate this mobile any 8 or 9 year old child no sim working child can play games in my mobile. -------IF ANYONE HAVE FRP LOCK PROBLEM AND HE CAN'T ENABLE DEVELOPER OPTION OR REMOVE FRP LOCK I HAVE SOLUTION

---------- Post added at 03:03 PM ---------- Previous post was at 02:57 PM ----------

IN NO COMMAND MODE -PRESS POWER+VOLUME UP 4 OR 5 TIMES (I MEAN PRESS POWER+VOLUME UP WAIT MINIMUM 1 SECOND THEN PRESS THEN continually 4 OR 5 TIMES
[Moto G 2015 General] Gravemind2015:
Have you tried (re)flashing modem.bin? I know a person had his imei not shown and he fixed with this. Also, U can try to restore imei using an imei changer app(root required) and typing the imei located on back of the phone (or in the box)< I am not sure about this but still, you can try.>

And threatening based posts along with showing any support to groups labeled as terrorists (By international,national and/or local law) are strictly not allowed on XDA. It also hampers the sanity of the thread. Hope you understand.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] FalKoopa:
So I followed the instructions and my phone is stuck in a bootloop with the Bootloader Unlocked Screen and the Erasing.... Screen.

Please help.
[Moto G 2015 General] Mimisf:
Try booting on recovery and make a factory reset. Then reflash.
[Moto G 2015 General] Ass kicker:
Yeah

---------- Post added at 10:03 AM ---------- Previous post was at 10:01 AM ----------

I have tried not working but thanks for suggestion
[Moto G 2015 General] lost101:
[MENTION=7540555]Ass kicker[/MENTION] - Flash Radio Firmware via Fastboot:

fastboot flash modem NON-HLOS.bin

fastboot erase modemst1

fastboot erase modemst2

fastboot flash fsg fsg.mbn​
[Moto G 2015 General] Ass kicker:
thanks

---------- Post added at 10:30 AM ---------- Previous post was at 10:14 AM ----------

Yes man you can relock bootloader.but you have to flash official stock ROM.very firt command 1-(fastboot oem lock begin) then flash your stock ROM in the last when you type fastboot reboot type before- fastboot OEM lock. Then type fastboot reboot
[Moto G 2015 General] Tel864:
LOL
[Moto G 2015 General] Ass kicker:
Fastboot oem lock begien working 100000000%
[Moto G 2015 General] dadnammit:
How to make my own backup without root?

I hope this is not an inappropriate place to post this question, but I just got a Moto G3. I'm wondering how the "Firmware Team" obtained these images, as I would like to make a full backup of my phone before flashing TWRP and rooting. I have already unlocked the bootloader and can boot from TWRP, where I ran a backup of all partitions successfully. Will that backup work for restore to current state even though I haven't rooted yet? Or is there something corrupt/missing inside it?
[Moto G 2015 General] Mimisf:
From my knowledge, it doesnt matter if you root it or not. If the backup was made successffully, then you can restore without problems.
[Moto G 2015 General] Tel864:
It's been asked many times before but you won't get an answer to where they come from. Just know they're official.
[Moto G 2015 General] gnmishra95:
Locked Bootloader

Will it work on the Locked Bootloader device? since i bricked my phone i can't "enable oem unlock" in developer mode which is required for unlocking bootloader
[Moto G 2015 General] Gravemind2015:
Yes. Just read the FAQ.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] gnmishra95:
Not Working

Failed (remote failure)

All the command Failed, some of them says failed to erase partition
[Moto G 2015 General] Gravemind2015:
No idea then; sorry. Its weird since I have personally flashed the firmware on some of users and they indeed had locked bootloader.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] lost101:
It would help to see a log of the flashing process. Copy and paste command prompt screen. Take screenshots if necessary.
[Moto G 2015 General] DIEGOLIN412:
hi! i changed the screen, beacause it was broken

then it justs stay on the logo, can not pass further

code status 0 , device is locked

cannot unlock bootloader, because did not allow oem developer options

I did flash with firmware osprey

but still shows device is locked and does not pass over the logo

PLEASE I BEG HELP

THANKS
[Moto G 2015 General] acejavelin:
This has been reported by several users who have replaced their screen with a 3rd party (non-Moto OEM) screen... Works with Lollipop, fails to boot with Marshmallow. Only recourse since your locked is get a OEM screen.
[Moto G 2015 General] DIEGOLIN412:
i try to flash it with last version , and lollipop version, but, after doing it from fastboot,

it just stays with the same, the logo appears, and dissapears....

any other solution?

thank you very much !
[Moto G 2015 General] j271735:
I have a moto g3 xt1548 from virgin mobile which is bricked, which rom should I flash?
[Moto G 2015 General] acejavelin:
There is no firmware image for VM available to my knowledge...

What do you mean bricked? Can you access fastboot or stock recovery?
[Moto G 2015 General] j271735:
well i can access both but if turn on the phone it gets stuck on the set up wizard

besides that, the phone's bootloader is locked
[Moto G 2015 General] Pritish1453:
unable to root the phone.. whenever I flash superuser through twrp, the phone stucks on the bootloader screen
[Moto G 2015 General] acejavelin:
Superuser doesn't work... Must use SuperSU and do a systemless install manually.

BTW, this isn't the thread for this question... There are rooting threads or start a new one in Q&A.
[Moto G 2015 General] megamejo:
And, what if I cant access to the recovery? I cant flash any firmware then?
[Moto G 2015 General] Gravemind2015:
You can continue but most likely it will result in a bootloop.

Broadcasted from Zeta Reticuli
[Moto G 2015 General] lost101:
Flash the Stock Recovery included in the firmware zip and try again. If you still have difficultly - flash the gpt.bin:

fastboot flash partition gpt.bin​

Report back.
[Moto G 2015 General] ExaHamza:
This is one of major frustration for those whom want to root, I don't what exactly happen, because a few months ago we were able to root 5.1 6.0 and 6.0.1 without any problems, but later on the problem began, what I recommend for is to install STOCK ROM OPTIMIZED AND ROOTED.