Database Info

Unlocking bootloader zui device only!

I have found a way to unlock bootloader again! (if the normal fastboot command does not work for you!)
I had mine bootloader re-locked for some stupid reason. And my phone stayed at Lenovo logo, So no booting or flashing custom roms again. I had giving up the hope. But after searching on some Chinese website. I found a way and it WORKED! I have now again a unlocked bootloader.
The website is in Chinese but don't worry people you just need to fill in some small data.
1: go to the website : https://www.zui.com/iunlock
fill box 1 your IMEI 1
fill box 2 your SERIAL key (the key that you get when you connect to fastboot and use the command 'Fastboot Devices')
fill box 3 your email
fill box 4 the security code that you see to the right of it ( Four numbers )
check the last box, as accepting the rules for warranty blabla. And click the BLUE BIG button
Now wait and have patience! After a while you will get a email with a file in it. Download that file and put it in your adb folder.
now check your device first if its connected and that you see the serial.
- > Fastboot devices <-
If YES than continue...
Use the command :
Fastboot flash unlock (name_of_the_file).img
after that use command:
fastboot oem unlock-go
And your bootloader is UNLOCKED AGAIN !!! :highfive::good::laugh:
Phone is back to life
Disclaimer: sharing your imei is not safe, other people can easily duplicate it on other phones. Google: ''why you shouldn't share your imei''.
Use this as your last resort if your phone doesn't boot or is bricked. Use a fake imei, follow the process and once or phone is unlocked, update the imei using the link @sth0r created on xda to fix imei for the lenovo z5

xperia_bird said:
I have found a way to unlock bootloader again! (if the normal fastboot command does not work for you!)
I had mine bootloader re-locked for some stupid reason. And my phone stayed at Lenovo logo, So no booting or flashing custom roms again. I had giving up the hope. But after searching on some Chinese website. I found a way and it WORKED! I have now again a unlocked bootloader.
The website is in Chinese but don't worry people you just need to fill in some small data.
1: go to the website : https://www.zui.com/iunlock
fill box 1 your IMEI 1
fill box 2 your SERIAL key (the key that you get when you connect to fastboot and use the command 'Fastboot Devices')
fill box 3 your email
fill box 4 the security code that you see to the right of it ( Four numbers )
check the last box, as accepting the rules for warranty blabla. And click the BLUE BIG button
Now wait and have patience! After a while you will get a email with a file in it. Download that file and put it in your adb folder.
now check your device first if its connected and that you see the serial.
- > Fastboot devices <-
If YES than continue...
Use the command :
Fastboot flash unlock (name_of_the_file).img
after that use command:
fastboot oem unlock-go
And your bootloader is UNLOCKED AGAIN !!! :highfive::good::laugh:
Phone is back to life
Disclaimer: sharing your imei is not safe, other people can easily duplicate it on other phones. Google: ''why you shouldn't share your imei''.
Use this as your last resort if your phone doesn't boot or is bricked. Use a fake imei, follow the process and once or phone is unlocked, update the imei using the link @sth0r created on xda to fix imei for the lenovo z5
Click to expand...
Click to collapse
hi i tried to follow this guide to unlock bootloader but on the lenovo website it is asking for an 8 digit serial number but my lenovo z5 only has 7 digit serial number can you please help

karanzxhao said:
hi i tried to follow this guide to unlock bootloader but on the lenovo website it is asking for an 8 digits but my lenovo z5 only has 7 digits
Click to expand...
Click to collapse
In this case the fastboot command is wrong.
You want to boot the phone up to the landing screen and enter ADB devices in your command prompt. Enter That.
You can also get the correct serial by opening the dialer app and entering *#06# in your touch phone pop-up keypad
Hope that helps!

This was helpful, It worked for me. Thanks.

Guide outdated - this worked for me now
Phone: ZUK Z2 Plus (Z2131)
After having tried many times following this tutorial and never receiving any E-Mail, I found a rather simple solution that worked:
I didn't really expect it to work, so this is from memory, wordings may differ a bit.
First: make backup of your data!
Make sure you have updated ZUI to the latest available version.
Enable developer options ( From your device go to " About -> ZUI version" , scroll down and click " build number " continuously until you see "You are now a developer")
Go to developer Options and look for the toggle "Allow OEM Unlock" (or similar) and set it to enable. Confirm.
Reboot.
The phone automatically performs a factory reset (All Data lost!).
Now you can continue with flashing custom recovery (TWRP) and ROM.
For example use Lineage OS. Instructions: (Sorry, can't post the link)
Finally I can enjoy the phone with custom ROM and up-to-date Android 10.

Is this why I can't see my device when it is in fast boot mode or boot loader mode?

a9REhdDp5V said:
Guide outdated - this worked for me now
Phone: ZUK Z2 Plus (Z2131)
After having tried many times following this tutorial and never receiving any E-Mail, I found a rather simple solution that worked:
I didn't really expect it to work, so this is from memory, wordings may differ a bit.
First: make backup of your data!
Make sure you have updated ZUI to the latest available version.
Enable developer options ( From your device go to " About -> ZUI version" , scroll down and click " build number " continuously until you see "You are now a developer")
Go to developer Options and look for the toggle "Allow OEM Unlock" (or similar) and set it to enable. Confirm.
Reboot.
The phone automatically performs a factory reset (All Data lost!).
Now you can continue with flashing custom recovery (TWRP) and ROM.
For example use Lineage OS. Instructions: (Sorry, can't post the link)
Finally I can enjoy the phone with custom ROM and up-to-date Android 10.
Click to expand...
Click to collapse
You are liar.
This solution will not work, because bootloader still will be locked at this state

Is there a way as of 2020 to unlock the bootloader?

Yes, I have searched the whole forum and after finding mixed answers I decided to post a question myself. I have used the Huawei Bootloader Unlock app from the Play Store in a P10 Lite and it worked fine but it says P20 is not supported. I have read on methods like disassembling the device but that's out of my range. So the question here is: Is there ANY way (apart from the disassembling one) to unlock the bootloader?
Thanks.

TotallyNotInUse said:
Yes, I have searched the whole forum and after finding mixed answers I decided to post a question myself. I have used the Huawei Bootloader Unlock app from the Play Store in a P10 Lite and it worked fine but it says P20 is not supported. I have read on methods like disassembling the device but that's out of my range. So the question here is: Is there ANY way (apart from the disassembling one) to unlock the bootloader?
Thanks.
Click to expand...
Click to collapse
I asked DC_Unlocker Support if they could Unlock my Bootloader on my P10Lite with android 8 ! And they told me after Android 8, and Emui 5+ the P10Lite Devices aren't Supported now.
If their would be a Way or if anyone has an other Idea... DLoad, Flashing Roms Rollback didn't worked for me.
But i would really like to try other Ways if their would be a Chance for a Working Way to Rollback on Android 7. Couse than DC-Unlocker would Work and could Unlock the Bootloader and Root the Phone, Flash TWRP and Doing much other things.
Sent from my [device_name] using XDA-Developers Legacy app

I'd love to know... I have my unlock code, but I have no idea how to use it. I got my code from Huawei before they stopped providing them.

ElChe said:
I'd love to know... I have my unlock code, but I have no idea how to use it. I got my code from Huawei before they stopped providing them.
Click to expand...
Click to collapse
First of all, enable the Developer Option
1. To Enable the Developer Option, Go to your Settings –> System -> About Phone -> Now Tap on the Build Number 7-8 Times until you see a toast message “Developer option enabled“
2. Now go to Developer optiosn in the settings and Enable OEM unlock
3. Download Minimal ADB and Fastboot
4. Turn off your phone and Press Volume Up and Power button simultaneously to open Fastboot mode or enter the command [to enter command, you need to connect your phone to PC using USB Cable]
Code:
adb reboot bootloader
5. now unlock your device’s bootloader with this command line.
Code:
fastboot oem unlock *****************
You need to replace the ****** with the unique unlock code.
Once it is done, you can reboot your phone. Now you can install TWRP Recovery, Custom Kernel, Root or even install Custom ROM. Enjoy!

TotallyNotInUse said:
First of all, enable the Developer Option
1. To Enable the Developer Option, Go to your Settings –> System -> About Phone -> Now Tap on the Build Number 7-8 Times until you see a toast message “Developer option enabled“
2. Now go to Developer optiosn in the settings and Enable OEM unlock
3. Download Minimal ADB and Fastboot
4. Turn off your phone and Press Volume Up and Power button simultaneously to open Fastboot mode or enter the command [to enter command, you need to connect your phone to PC using USB Cable]
Code:
adb reboot bootloader
5. now unlock your device’s bootloader with this command line.
Code:
fastboot oem unlock *****************
You need to replace the ****** with the unique unlock code.
Once it is done, you can reboot your phone. Now you can install TWRP Recovery, Custom Kernel, Root or even install Custom ROM. Enjoy!
Click to expand...
Click to collapse
Wow thanks! I'll get on that this weekend!

HELP!!! Custom Binary (BOOT) Blocked By OEM Lock

Hi there, I've been having trouble rooting my Samsung Galaxy A20 - SM-A205GN for awhile now. I'm officially on Android Version 10 with One UI Version 2.0, I've followed the provided guide to root my device but it fails on Odin "all versions" when I flash the recovery.tar file. After it fails it gives me a prompt on my phone on recovery mode saying Custom Binary (BOOT) Blocked By OEM Lock. I have enabled OEM Unlocking and USB debugging but it seems like it doesn't enable is there a way that your carrier can block these options to not enabled because that's what my starting to think why I can't seem to root my device. Can anyone suggest any workaround or fixes for this problem.

While your phone is turned off hold down both volume buttons and connect the usb cable, it will give you 2 options just hold down the volume up button and your bootloader will be unlocked

mody00 said:
While your phone is turned off hold down both volume buttons and connect the usb cable, it will give you 2 options just hold down the volume up button and your bootloader will be unlocked
Click to expand...
Click to collapse
That will go to download mode but wont unlock bootloader

2triple0 said:
Hi there, I've been having trouble rooting my Samsung Galaxy A20 - SM-A205GN for awhile now. I'm officially on Android Version 10 with One UI Version 2.0, I've followed the provided guide to root my device but it fails on Odin "all versions" when I flash the recovery.tar file. After it fails it gives me a prompt on my phone on recovery mode saying Custom Binary (BOOT) Blocked By OEM Lock. I have enabled OEM Unlocking and USB debugging but it seems like it doesn't enable is there a way that your carrier can block these options to not enabled because that's what my starting to think why I can't seem to root my device. Can anyone suggest any workaround or fixes for this problem.
Click to expand...
Click to collapse
This happens to the a207f because it has Snapdragon instead of Exynos

You have to flash Stock Firmware

Boot back to download mode and long Press Volume up button.
then you will be oem unlocked

....except not that I unlocked and relocked bootloader on s10e it won't show up again in developer options

I want to brick my motorola android smartphone please ^^

Hello, as shared with the specific page https://forum.xda-developers.com/z2...d-xt1789-06-cheap-t4036047/page3#post83118467
my story is COMPLEX and now i have
-no usb debug mode (no adb)
-oem blocked blootloader
-cannot open unlock oem bootloader (because no usb debug mode)
-i have the LATEST ROM available (latest android 9)
-when i flash OFFICIAL LATEST ROM it takes it as "rollback" and refuse it (locked bootloader)
-i cannot flash NOTHING
- i only have bootloader
The motorola official tool cannot "match" / "recognize the type or whatnot and it wont help.
Motorola support refuse to help they told me its my fault ! (I did not do nothing to get to bootloop/bootloader).
Now i think i can solve it : by flashing any rom and opening bootloader without USB debug mode on.
How ? I want to BRICK IT !!! and in qualcomm mode 9008 i will flash the BLANKFLASH file (available).
Then OEM is unblocked, i will have ADB and flash WHATEVER rom i want in my xt1789-06 RETAIL (z2 force France).
My question here for this forum (general Q&A) : how do we BRICK a locked bootloader only access android smartphone? is there a magic command or process?
I tried unpluging in a middle of a flash rom but since flashing even latest official rom is blocked by bootloader => i cannot brick it.
Please tell me HOW to brick it, i take the risk ... i love this smartphone.
Thx.

you need an mtk tool like
https://droidbull.com/Android-multi-tools/
good luck
also
https://www.99mediasector.com/enable-usb-debugging-locked-phone-without-access-setting/

lg k51

how do i unlock bootloader on my lg k51

How to Unlock Bootloader of LG Phones Official Method
This is the guide of LG Android Smartphones how to Unlock Bootloader of LG Phones Official Method To Unlock LG G6, LG G7, LG V30, LG V40
www.gizdev.com

I've got my hands on this phone. I've read through all of the replies and I see that @Warlockguitarman has come up with a universal mediaTek method I suppose. So far just going into what I know about LG I've been able to get into fastbootd mode very easily. After that it's a pain in the ass.
You need to download the Minimal Adb and Fastboot tools or just use the latest platform tools. For the people who didn't read the previous posts, the command to reboot to fastboot, is:
Code:
adb reboot fastboot
You'll be rebooted to fastbootd, which is fastboot but moved to the userspace to allow for "flawless" system tweaks.
In fastbootd you can't do much until you've already updated you're drivers from the Device manager. You'll wanna update the LG K500 device I believe. This is the weird part because I can't seem to get consistent results.
Originally I tried using Android Bootloader Interface driver to talk to the device and I noticed that I was getting a HAL issue. Which meant that my cable or driver was messed up. So naturally I tried the LG Adb drivers next. And this time I kept getting (No Link). I then tried searching for some OEM commands. In our devices case, they're hidden by our carriers. So there's not much we can do about that.
On LG's official developer website for unlocking the bootloader, the command to get the OEM unlock code is "fastboot oem device-id". So I tried this as well, and I get a combo of the 2 errors from above. I need more tests from others. If you need help with getting to fastbootd or getting your device to showup in fastboot just ask. We'll help(or at least I will)
On top of everything else, I believe that in order to unlock the bootloader we have to put the device in emergency download mode so that we can dump the full rom of our devices using some low level mediatek interface perhaps. If we can dumb the bootloader, we can extract the hidden OEM commands to see exactly what we need to see. And as @Warlockguitarman says, one of the main issues in getting root is disabling dm-verity. Or boot verification in vbmeta.img.

You can get root without disabling avb, you use patched magisk boot.img and flash in fastbootd, I have my bootrom and preloader dumped and fully understand how the unlock is done, but the correct signature needs to be done to the modified seccfg to be able to flash it to correctly unlock the bootloader and so far only paid tools can do this for the time being... and on the HAL error, that is because fastbootd removes oem commands, so no oem unlock command will work, the seccfg holds the bootloader lock and unlock info an 01 needs to be changed to an 03 and then flashed back. So far only bootrom allows the seccfg.img to be flashed and it requires the correct signature. Check out the mtkclient tool.
GitHub - bkerler/mtkclient: MTK reverse engineering and flash tool
MTK reverse engineering and flash tool. Contribute to bkerler/mtkclient development by creating an account on GitHub.
github.com

The tool works for the k51! Go unlock your bootloaders

greetings again mr.warlockwizardguitarman...if you could spare the time..and possible,list the steps for the mtk bootloader unlock for the k51,???couple paragraphs or such,in which you did this...ill be able to figure everything out from there,just a lil garbled r.now..learning to much to quickly,and no experience...lol phew..like i said b4,just started doing the phones from computers,,but,i know py.c,java so,just tryn to put it all together...if you woud be so kind t.y.

How to unlock bootloader and root the LG Stylo 6 and K51 K61 and other K model LG devices
STYLO 6 MTKCLIENT INSTRUCTIONS FOR FLASHING, BACKING UP, UNLOCKING THE BOOTLOADER, AND ROOTING ON WINDOWS 10/11: !!!WARNING!!! ATTEMPT THIS AT YOUR OWN RISK, READ THE FULL TUTORIAL BEFORE YOU START!!! I AM NOT RESPONSIBLE FOR ANY BRICKED...
forum.xda-developers.com

..
I have a Lg k41s
with root with and bootloader unlocked, in
android 9, I could get into the recovery stock,
aply update-from adb, but what the adb said; drive does not load into the directory.
but on android 10 all the stars disappeared, and the powers of heaven were shaken ,, the recovery disappeared does not enter, if you can give me a light, as I enter the fastboot, please