Stuck at fastboot mode after trying downgrade xt1028 - Moto G Q&A, Help & Troubleshooting

So i found some firmwares of my moto g xt1028 and tried to flash downgrade it to 4.4.2 but not successfully. After that, i tried to back to 4.4.4 and now stuck at this message:
- "failed to validate system image"
- Fastboot reason: "Fall-through from normal boot mode"
Any idea how to let me back as it is? :crying: Please help
P/s: I tried to flash 4.4.4 firmware again and many times, seem like all commands are proceeded properly but still cant boot , i wonder if 4.4.2 version do anything with it :crying:
Update1: Fixed! <-- I found there's 1 more file named "system.img_sparsechunk4" and decided to flash it ---> Fixed the device. Thanks god :highfive:

Downgrading via fastboot is very dangerous as you are also flashing the Bootloader. Is your Bootloader unlocked? I haven't followed if that's possible with XT1028.

lost101 said:
Downgrading via fastboot is very dangerous as you are also flashing the Bootloader. Is your Bootloader unlocked? I haven't followed if that's possible with XT1028.
Click to expand...
Click to collapse
As this moment, no. Still locked. Im glad that i fixed this problems after 4 hours finding and trying

Related

Moto g stuck in bootloop!

Hi, My moto g is stuck in bootloop (Kood/Telus version). I tried flashing stock firmware (telus) and it gave me no errors so its all good but other version firmwares like us version did give me errors! I manage to relock my phone using fastboot oem lock however, it is still stuck in bootloop. I'm not sure what else to do.
I've found a stock firmware that works for me without any errors now what would be the next step to fix my bootloop. As flashing to stock did not help. It shows warning bootloader unlocked then goes to a lighted blackscreen and repeats. I am able to get into fastboot menu. but neither factory or recovery work.
The Firmware that works without error is :
Code:
TELUS-CA_FALCON_KXB20.9-1.10-1.39_cid14_CFC_1FF.xml
Thanks!
Are you following this tutorial?
http://forum.xda-developers.com/showthread.php?t=2542219​
Are you entering the commands manually? Are you using fastboot or mfastboot?

[HELP] Unbrick (downgraded for boot)

Yesterday I tried to install the BR 5.0 OTA on my RETAIL AR xt1032, it failed so I converted it to the stock XT1033 br firmware, tried to install the ota, failed again, apparently only for unlocked bootloaders.
My bootloaders is locked.
So then I wanted to go back to my original rom, so I downloaded fastboot_falcon_retar_user_4.4.2_KXB20.9-1.10-1.9_7_release-keys-cid12-Latam_AR.tar.gz with the intentions of installing the OTA afterwards.
Can't boot, tried tons of gpt.bin's.
Right now I get remote failure when flashing gpt.bin and I think also boot.img
tried fastboot, mfastboot, flashall.bat /eu
When trying to boot I get
fastboot reason: fall-through from normal boot mode
version downgraded for boot
failed to validate boot image.
help will be appreciated
You can boot the phone? I mean, it works? Or stuck somewhere
aybarchu said:
You can boot the phone? I mean, it works? Or stuck somewhere
Click to expand...
Click to collapse
It doesn't boot, when trying to boot normally it flashes the logo and goes straight to fastboot with the fall-through normal boot reason.
And I can't flash gpt.bin and other files, I get preflash errors or remote failures. I think it's because the bootloader is locked, but I don't wanna unlock it Plus I don't know If I can even get the IMEI from this point.
Try unlocking the bootloader. But im with the same problem. I were on 5.0 and then tried to downgrade to KK. My phone doesnt boot anymore.. it seems we have to wait for an official 5.0 firm
aybarchu said:
Try unlocking the bootloader. But im with the same problem. I were on 5.0 and then tried to downgrade to KK. My phone doesnt boot anymore.. it seems we have to wait for an official 5.0 firm
Click to expand...
Click to collapse
info request replies "imei: " on fastboot
EDIT: I thought I needed IMEI for unlocking bootloader .. I unlocked it and booted right away, flashed 4.4.4 br retail again, applied ota through recovery, enjoying Lollipop.

need help on my moto g xt1031

Im stuck on warning bootloader unlocked screen now. i tried using this method to see if it fixes my problem http://forum.xda-developers.com/showthread.php?t=2542219 but didnt. Tried updateing thru recovery on adb but keep getting error /system/vendor/lib/libril-qc-qmi-1.so has unknown componets . Any ideas to fix this
Flash stock firmware.
motofirmware.center
Sent from my XT1031™

My phone got bricked after trying to downgrade from MM to LP Help!

Hello, yesterday I was trying to downgrade from MM to LP using Fastboot and by mystake I flashed "fastboot flash partition gpt.bin" and it failed, the others commands failed as well, after that I was unable to turn on my device, it only let me access to Bootloader Mode and also shows the battery charging, cannot access to recovery, and it shows black screen when I try to turn it on.
My phone is completely stock, It has neve been rooted, stock recovery. Its a Moto G XT1540. the Bootloader is locked.
Is there a way to bring my phone back to life? What can I do?
I also tried to downgrade my software n i got the same problem as you do but i have a rooted n unlocked bootloader device so i first installed cm12.1 so after that i got the 5.1.1 then i flashed the stock firmware 5.1.1 n i got the stock 5.1.1 system running very nicely
Provide a fastboot log (copy and paste command prompt screen) of what happens when doing all the fastboot commands mentioned in the tutorial. Take screenshots if necessary.
Fastboot Tutorial: http://forum.xda-developers.com/2015-moto-g/general/guide-fastboot-flashing-factory-t3187750
Factory Firmware Images: http://forum.xda-developers.com/2015-moto-g/general/index-moto-g-factory-firmware-images-t3169639

XT1225 Bricked out from downgrade from 6.0.1 to 5.0.2 Locked Bootloader locked HELP

Hi all,
Please help me with this, i have a Moto Maxx with locked bootloader, it was into 6.0.1 brasil and it was downgraded to 5.0.2 Chile without being bootloader unlocked. now it is looping into fastboot mode with the following log:
Version downgraded fot boot
Failed to validate boot image: ret=-4
Fastboot reason: Fall-through from normal boot mode
Version downgraded for boot
failed to validate boot image: ret=-4
Boot up failed.
It is not recognized by fastboot devices, it stays into waiting for device.
In Devices manager it comes out as Fastboot quark S
if i put the qualcom drivers it happens the same.
i been trying with different tutorials but as it is not recognized by fastboot or ADB i only go to a dead end., if anybody has a way to fix this will be apriciate.
Please help me with this to recover this phone.
Sorry about my english.
Regards
JnKhD said:
Hi all,
Please help me with this, i have a Moto Maxx with locked bootloader, it was into 6.0.1 brasil and it was downgraded to 5.0.2 Chile without being bootloader unlocked. now it is looping into fastboot mode
Click to expand...
Click to collapse
1) You can not downgrade firmware on these Quarks with a locked bootloader. On the XT1225 and XT1250 Moto Maxx, bootloader unlock is FREE through request to Motorola website.
The first thing you do on these phones is unlock the bootloader! Unlocked bootloader is "god" mode.
I explain how to do it here:
UPDATED GUIDE: How to unlock your MOTO MAXX/MOTO TURBO bootloader/install TWRP/root
https://forum.xda-developers.com/moto-maxx/general/guide-how-to-unlock-moto-maxx-moto-t3455341
Even with an UNlocked bootloader, to downgrade firmware you have to omit the gpt.bin flash command. So, you probably still would have temporarily bricked your phone, since you don't seem to know anything about this phone -- but you could have easily recovered by re-flashing again. Unlocked bootloader is very forgiving!
I hate to sound this way, but you really, really should have even done basic research on this phone before trying to do what you did.
So, how can you fix this?
2) Your only way to recover your phone is to re-flash same firrmware you were on or newer. In this case, it would be the Brazil 6.0.1 firmware, and it would be good to make sure you flash the very newest -- because it needs to be the same bootloader version or newer.
This is the most recent Brazil 6.0.1 stock firmware:
XT1225_QUARK_RETBR_6.0.1_MPGS24.107-70.2-2_cid12_subsidy-DEFAULT_CFC.xml.zip
https://www.androidfilehost.com/?fid=385035244224403573
3) You will need to use RSDLite or ADB. You said it will not recognize the device in ADB, so try RSDLite -- or try them both on another PC. Make sure you have the latest Motorola drivers for PC.
https://mobilesupport.lenovo.com/us/en/solution/MS88481
4) if you can't get any computer to recognize the device to flash in RSD or ADB, there are a couple of other unbrick methods for Quark, but I have no experience with them:
https://forum.xda-developers.com/droid-turbo/general/turbo-unbrick-t3139811
https://forum.xda-developers.com/moto-maxx/general/tuto-unbrick-xt1225-100-t3483623
Yes, one is in the Droid Turbo forum but Quark is Quark.
Good luck.

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