Urgent Help Required please!!! - Redmi K20 / Xiaomi Mi 9T Questions & Answers

1: my k20 phone got hard bricked as its boot loader was unlocked and i gave fast boot command : fast boot oem lock and my system got destroyed and boot loader got locked
2: now my phone gets boot into fast boot mode my laptop detects it , but i am unable to flash any recovery or any other image as its in locked boot loader status
3: mi flash tool unable to flash stock rom it says unable to erase in lock state
4: mi unlock tool inst unlocking as it says go to developer option and add account for unlocking but phone is bricked
5: i read many threads on how to flash with lock bootloader Qualcomm 9008 port by making deep flash cable at home but any other solution how to get into EDL mode without disassembling the device?
please help me urgent

please help

zubin1594 said:
2: now my phone gets boot into fast boot mode my laptop detects it , but i am unable to flash any recovery or any other image as its in locked boot loader status
please help me urgent
Click to expand...
Click to collapse
Since you can entr the fastboot mode, then pls download the latest fastboot rom for your phone and flash it as per this guide: https://c.mi.com/oc/miuidownload/detail?guide=2.

Unable to flash any image since bootloader is in lock state
Not able to flash any image since boot loader is in locked state

zubin1594 said:
Not able to flash any image since boot loader is in locked state
Click to expand...
Click to collapse
That's the point, you can flash the original firmware (the same one that is currently in your smartphone) even with locked bootloader. Try it before you say it can't be done.

Nope buddy boot loader is locked and system is already installed therefore mi flash tool ia unable to erase it cuz it shows me error cannot erase in lock state i tried flashing stock global rom through mi flash tool

exactly - flash stock rom for fastboot - I've done it multiple times

zubin1594 said:
Nope buddy boot loader is locked and system is already installed therefore mi flash tool ia unable to erase it cuz it shows me error cannot erase in lock state i tried flashing stock global rom through mi flash tool
Click to expand...
Click to collapse
Try using some older flashing tool and if that doesn't work try using some older Chinese flashing tool and of course the fastboot firmware file in the format *.tgz*.

Ok so i found a mi unlock tool which is a modded verion of original tool what it does is bypass server authentication and unlocks bootloader of device thanks it wont connect to xiaomi for checking device unlocking permission and will unlock it

Related

[HELP] How Do I Unlock Bootloader without a Firmware

Hello.
Long story short:
I have a OnePlus2, I can boot in Fastboot mode and my PC does recignize the fastboot device.
fastboot oem device-info says that Bootloader is locked and when I try to unlock (fastboot oem unlock) it states "okay" but cannot boot into system because there is none installed. -> Bootloop
I cannot boot into recovery nor install a recovery due to the locked bootloader.
My Question:
Is there a way to unlock the bootloader in fastboot and/or install a boot.img?
I am happy for any help that I get.
Have a good day/night
SoulSnatcher
No, but why you don't have system?
You have stock recovery download official signed full zip and flash it. Recovery.
Also unbrick guide using the one you need Qualcomm drivers
Sent from my ONE A2005 using Tapatalk

Zenfone Selfie bootloop / unlock bootloader

Hi everybody
My Zenfone Selfie after a normal update (never modified) is in bootloop.
So I installed adb and fastboot and I flashed the twrp.
Then I tried in every way to flash a rom. I've tried both with official firmware and with various versions of cyanogenmod. Through fastboot and via adb sideload.
Even if seems to work, when I reboot I get the bootloop problem again.
As far as I can understand the problem it’s that I have the bootloader still locked. The official apk solution I guees it’s not applicable in my case. By fastboot oem unlock i get an error message (probably why i can not enable usb debug).
Do you know of other ways to unlock the bootloader or in general to flick my phone?
Thanks to everyone for the help
Here is a link for selfie's boot, recovery and system images for fastboot flashing
https://mega.nz/#F!Ao1RjT7D!hQ5x60r02WveB9-Hl32B4g!810z0DoQ
You can't unlocked bootloader on fastboot. I hope you can restore your device.
24imelqui said:
Here is a link for selfie's boot, recovery and system images for fastboot flashing
https://mega.nz/#F!Ao1RjT7D!hQ5x60r02WveB9-Hl32B4g!810z0DoQ
You can't unlocked bootloader on fastboot. I hope you can restore your device.
Click to expand...
Click to collapse
i tried evrything from flashing stock image , recovery partition , boot image . but nothing works. same i dont have unlocked bootloader. i am stuck at just rebooting phone. please help

(Solved) Please!!! XT1680 Bootloader locked: BOOT UP FAILED

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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse

A2017G How to relock bootloader on Nougat B10

I came back from LOS 16.0. Flashed A2017G_B10_NOUGAT_FULL_EDL in EDL but there's a warning that my bootloader is locked. I wanted to relock it but the warning prevents me from entering bootloader or fastboot (or maybe they are not even present....). Next I flashed A2017U_FASTBOOT_UNLOCK_EDL in MiFlash but it did not do anything. It flashed OK but I still cannot access fastboot. Should I flash some marshmallow rom? Thanks in advance.
I have the same problem. Cannot enter fastboot mode on Nougat ROM.
Ok I found the way usin Axon 7 Toolkit
1. Set the Android version to 7 using option 13
2. Perform unlock bootloader
Following instruction Axon & Tookit gives you EDL image of the proper fastboot partition giving the possibility to enter fastboot mode
then fasboot oem lock
I wanted to say thanks that works, but apparently my phone is bricked now - it hangs on green ZTE logo. PC recognizes it as DFU. Cannot enter EDL either. I guess I look for some guide how to recover from this situation
Managed to fix that. Somehow I was able to enter fastboot. It said my bootloader was locked so i flashed TWRP and from TWRP using ADB installed stock Nougat rom
ma_ko said:
I wanted to say thanks that works, but apparently my phone is bricked now - it hangs on green ZTE logo. PC recognizes it as DFU. Cannot enter EDL either. I guess I look for some guide how to recover from this situation
Managed to fix that. Somehow I was able to enter fastboot. It said my bootloader was locked so i flashed TWRP and from TWRP using ADB installed stock Nougat rom
Click to expand...
Click to collapse
If you was able flash twrp mens your boolaeder was unlocked?
No there's a TWRP that works on locked bootloader.
ma_ko said:
No there's a TWRP that works on locked bootloader.
Click to expand...
Click to collapse
Seems that TWRP was inatlled before the bootloder was locked again.

relocking bootloader

Hi,
I am having a problem trying to relock my bootloader.
i am selling my g4, so needed to remove my custom rom, flash stock and relock my bootloader.
I downloaded and flashed via twrp the stock 8.1 ROM on the g4 plus page. ( stock rom in twrp format)
That went fine.
Then I booted into fastboot , and entered fastboot lock command fastboot oem lock
It said the android image was not valid?
So I then entered fastboot flashing lock
it rebooted fine to the stock android , but now the bootloader warning says ''your device has loaded a different operating system'', and thens boots 8.1.
DO you think I should go back anf flash stock rom ( not a twrp flashable version), using fastboot commands, ending with 'fastboot oem lock' ?
Just dont want to brick it, as it is now sold!
Many Thanks for any help
pootler
P.S. the TWRP I am using is a custom one ( i think )
pootler said:
Hi,
I am having a problem trying to relock my bootloader.
i am selling my g4, so needed to remove my custom rom, flash stock and relock my bootloader.
I downloaded and flashed via twrp the stock 8.1 ROM on the g4 plus page. ( stock rom in twrp format)
That went fine.
Then I booted into fastboot , and entered fastboot lock command fastboot oem lock
It said the android image was not valid?
So I then entered fastboot flashing lock
it rebooted fine to the stock android , but now the bootloader warning says ''your device has loaded a different operating system'', and thens boots 8.1.
DO you think I should go back anf flash stock rom ( not a twrp flashable version), using fastboot commands, ending with 'fastboot oem lock' ?
Just dont want to brick it, as it is now sold!
Many Thanks for any help
pootler
P.S. the TWRP I am using is a custom one ( i think )
Click to expand...
Click to collapse
Use LMSA flash rescue option if you have a Windows machine
(Lenovo) MOTO Smart Assistant (PC)
then see
Relocking the bootloader
sd_shadow said:
Use LMSA flash rescue option if you have a Windows machine
(Lenovo) MOTO Smart Assistant (PC)
then see
Relocking the bootloader
Click to expand...
Click to collapse
THanks for the reply.
Strange, thought I had already updated this
I went back to stock firmware and decided to flash with fastboot all individual files.
At some point, I got the same ''verification failed' but the command line suggested flashing system, boot, and ( something else, cant remember) again.
i did this this, and this time, no errors occured, and I had a complete install, with a locked bootloader, and no bootloader warning screen.!
Yay - result
Thanks again for your advice - I will remember it for the future.

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