i flashed update zip of android m and then want to downgrade so when trying to flash lollipop rom gives error signed verification failed in all "system.img_sparsechunk" also gpt.bin not installing and device not starting..what to do now please help bootloader is locked..
Please help:crying::crying::crying::crying::crying:
Thanks in advance
you need to open the bootloader, and once this is done push commands
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I have moto g4 plus. recently i rooted it and everything worked fine
but when i applied the nougat ota upgrade
i m unable to downgrade it to mm stock ROM or stock ROM
neither, able to lock bootloader even cant flash with recovery
every time i flash it it shows "preflash validation failed " and "piv sign not valid " for the boot and recovery image
my stock ROM is not corrupt
one more thing it also display's "security version downgrade"
pls guys help me
1. enable developer option
2. enable oem unlock
3. get unlock code from motorola website
4. unlock via fastboot
Sorry, misread. I think you want to unlock BL.
Did you read XDA rules...? Did you search...?
There is already a thread for ReLock issue..
As you will read,
You can't downgrade bootloader if once updated...
Don't Mess with bootloader unless want a brick....
According to my views, there are no benefits for ReLocking unless want to sell phone and make buyer fool... LoL...
Hi guys, I will appreciate if someone can help me. The things is:
I erase system.img from recovery and I backup from XT1706. After I found a site with stock XT1700 rom I downloaded last version which is the S503 I used SP Flash Tools and everything goes well. But when I tried to unlock Bootloader again adb windows said: This operation is not allowed. I tried everything but I wasn't able to unlock Bootloader again. So I downloaded the first version (S116) and surprisingly I could unlock Bootloader. But I get no notification of OTA updates it says that phone has the last version which is not true. Any ideas of what could be happening here? Thanks of hand for you help.
If you downloaded the ROMs from http://motorolastockrom.com/motorola-moto-e3-xt1700 then I suspect the problem is the ROMs have locked boot loaders. I tried installing the S503 version and the S302 version and had the same problem as you. In the end I ended up installing an XT1706 firmware and was able to unlock the bootloader, but sadly it is the same release date and adroid patch version as the XT1700 ROM I was on to begin with (S124)
Currently I have installed latest official nightly LineageOS 14.1 on my device. I want to return to stock ROM and lock bootloader. Previously, before bootloader unlocking, I had 6.0.1 stock, version with january security updates (probably).
I have downloaded latest stock 6.0.1 MPD24.107-52 ( https://github.com/motoxplay/stock ).
Unfortunately, I got an error when tried to flash it:
HTML:
$ fastboot flash partition gpt.bin
it returns:
HTML:
(bootloader) Preflash validation failed
same with recovery.img
To lock bootloader I have to flash all stock files.
Any ideas? Thanks
skip it. You cant flash same bootloader and same gpt.bin again.
https://forum.xda-developers.com/mo...de-return-to-stock-relock-bootloader-t3489110
NOTE: You must use a factory firmware image that is the same version as what you have installed or newer to successfully relock the bootloader, you cannot just grab the old (shipped) version from Moto's site. If you attempt to use a firmware image that is older than what you have installed currently, you will receive a Preflash Validation Error indicating such when you attempt to flash the partition table (gpt.bin). At this point you can either continue the flash and NOT lock the bootloader at the end, or stop until you can find the most current image. Moto used to be quite willing to hand these out when they were requested, so if you have a very new firmware installed you may not find one that you can use to relock with on the Internet. Part of the requirements to lock the bootloader is you must successfully flash the partition table (gpt.bin) in order to complete the lock process, if you can't then the bootloader lock process cannot be finished.
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so i have to wait for the official nougat flashable file.
bump
any workaround?
i try to flash stock rom on my moto g5 plus but fastboot flash partition gpt.bin got error so i skiped gpt.bin and flash other files via rsd lite now i want to lock the bootloader but when i tried it show still require signed img file.any one help me
You need a signed image to relock the bootloader, per the message...
I don't believe we have signed BL files, but I could be wrong.
To summarize, I have a Moto G5 Plus, with locked bootloader and I decided to update a ROM STOCK and made a simple mistake by forgetting the OEM unlock option in advance in the configuration menu. An error occurred on the way and tried to return to the stock. Now, when the phone boots up, it enters the boot loader (which is locked) and displays a startup error message that states that you must use the Software Repair Wizard.
trying to enter the recovery gives a code:
AP Fastboot Flash Mode [Secure]
Fastboot Reason: UTAG "bootmode" configured as fastboot
failed to validate boot image
ERROR: Failed to pass validation, backup to fastboot
Boot up failed
Is there a known solution or force a recovery to work?
Thanks to all
Hello;
I found the solution, download the latest firmware from your cell phone, download it just unzip the zip and look for the files: gpt.bin and bootloader.img, those 2 ctrl + c and files go to the folder where they downloaded ADB tools and paste the files there , then execute the steps to open command window here and execute the following:
fastboot flash partitiongpt.bin
fastboot bootloader bootloader.img
fastboot reboot-bootloader
and it is ready to install the downloaded rom.
Gracias a AndresBRS https://www.clangsm.com/forum/index.php?showtopic=466891
Same problem with moto g5s plus xt1804
After flashing it shows failed to start ..failed to boot recovery and when I am trying to unlock bootloader it shows unlock data unavailable
beyondsunshine92 said:
After flashing it shows failed to start ..failed to boot recovery and when I am trying to unlock bootloader it shows unlock data unavailable
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Install lenovo moto smart assistant in pc and go for rescue and flash the whole firmware.if your device is not supported then flash manually.
Moto smart assistant shows device not supported however I tried many fastboot stock roms but every time I get error invalid signed image. .ph stuck in fastboot
beyondsunshine92 said:
Moto smart assistant shows device not supported however I tried many fastboot stock roms but every time I get error invalid signed image. .ph stuck in fastboot
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Download the firmware from here and then flash.
https://mirrors.lolinet.com/firmware/moto/potter/official/
riyan65 said:
Download the firmware from here and then flash.
@beyondsunshine92: Did you tried this? Is it working? I am also having the same issue. Please help guys
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