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[Resolved] HOW TO Unlock Bootloader LAVA A3 MT6750

[Warning] im not responsible for any brick
Requires
1 PC
2 ADB driver link https://mega.nz/#!Q7YnCQTb!W0baXOu5VxYLTfPBClumkSR_pCAK-Mntiz7HnKCx7yw
3 usb cable
step 1 install adb driver on pc
step 2 backup anything you want to keep [Example] photos and videos
step 3 in LAVA A3 you go to settings > about phone > more > click 7 time Build number now back to settings go to more Now you will see developer options there ON that
step 4 Enable OEM unlocking
Enable USB debugging
like screenshot
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step 5 USB cable connected through PC
then open cmd command
Type the first comment then you will see a popup ON mobile screen Allow USB debugging like this screenshot
HERE THE commands
1) adb devices
2) adb reboot bootloader
3) fastboot devices
4) fastboot oem unlock
5) fastboot reboot
All done
4) (select volume up for confirming unlock bootloader and select volume down for not unlock bootloader) like this screenshot
After you unlock bootloader you will see this message like this screenshot
If you try these comments than you Device storang data and all others data will be erage so you need to make a backup first
Donation linkhttps://www.paypal.me/AnvarMc
HOW TO FLASH RECOVERY LINK https://forum.xda-developers.com/general/help/lava-3-lava-z25-twrp-philz-touch-t3807436

while doing that my phone suck on fastboot mode, any help ??

You need to contact their customer service department and they will help you.

problem solved.
while i was stuck on fastboot. just press volume up+volume down+power button at the same time 30+ sec. and it's normaly on. and again follow the steps. now i'm sucess. thanks

OEM unlocking
How? How are you expecting me to turn on OEM unlocking when there is no option for doing that in devloper option. I tried rsetting my device as it was new. without any update nothing but still i couldn't found OEM unlocking option in devloper option. then i used there OTA Update and even then i wasn't unable to locate OEM unlocking. without that this post doesn't work. I use lava a3 (not mini) still didn't work . Tired googling , Some forams but didn't worked . Help :crying::crying::crying::crying:

abirbd said:
How? How are you expecting me to turn on OEM unlocking when there is no option for doing that in devloper option. I tried rsetting my device as it was new. without any update nothing but still i couldn't found OEM unlocking option in devloper option. then i used there OTA Update and even then i wasn't unable to locate OEM unlocking. without that this post doesn't work. I use lava a3 (not mini) still didn't work . Tired googling , Some forams but didn't worked . Help :crying::crying::crying::crying:
Click to expand...
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Basic knowledge must have this process
Otherwise you will break your phone

mranwarmc said:
Basic knowledge must have this process
Otherwise you will break your phone
Click to expand...
Click to collapse
I explained my problem bro! i don't might have that knowledge! help me out bro

[GUIDE] How To Install MIUI 10 BETA via fastboot [No TWRP]

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Here's Complete Guide To Install MIUI 10 Beta via Fastboot Mode
Things you will need :
UNLOCKED BOOTLOADER
Enabled USB Debugging [About Phone>Tap MIUI version few times until you will see dialog that you are developer.Then Go To Additional Settings>Developer Options and enable USB Debugging]
XiaoMI Flasher Tool Beta (Stable release has bug) Download
MIUI 10 Beta Version by @madsponge26 : XDA Link [Download MIUI BETA 10 8.19.13 Fastboot] (That's latest version for now. 19/09/18)
Installation:
1.Drag and Drop folder inside ROM tgz file anywhere you want.
2.Reboot your device in Fastboot Mode
3.Open MiFlash
4.Click Select button and locate your ROM folder . It should be beryllium_global_images_8.9.13_20180913.0000.00_8.1_global for now.
5.Click Refresh button and your device should appear in empty box area
6.Press Flash button and wait until it's done
7.When flashing is done device will disconnect itself and shut down. Boot Up device and complete setup
Advice : Before flashing i would strongly recommend selecting "clean all" from bottom right radio buttons or try keeping your data
If This Thread Was Helpful , Please Press Thanks Button :highfive:

Will this step wipe away all my apps and games??
Thanks..

santiagoruel13 said:
Will this step wipe away all my apps and games??
Thanks..
Click to expand...
Click to collapse
You can select it in flasher software. Bottom right corner

santiagoruel13 said:
Will this step wipe away all my apps and games??
Thanks..
Click to expand...
Click to collapse
Yes, it'll wipe everything if you follow the mentioned advice at the end of main post. It'll be as a new device. But remember to save your mi account well. or sign out before the flashing process.

Smartlock
Is somebody can say me if smartlock with bluetooth device is ok in miui 10 bêta. Because like for my redmi on my poco impossible to connect the phone with à Bluetooth device and have smartlock functional

mogamycool said:
Yes, it'll wipe everything if you follow the mentioned advice at the end of main post. It'll be as a new device. But remember to save your mi account well. or sign out before the flashing process.
Click to expand...
Click to collapse
It's okay to do it without signing out your mi account if you remember your password :b
EDIT: oh wait, you already said that lol sorry

Guys, I actually just downloaded the MIUI 10 .zip file (full rom) and used the System updater app to install it, 3 dots in top right corner, choose update package and then selected the MIUI 10 ROM.
I DIDN'T unlock my bootloader but I did enable developer options as I tend to do this religiously on all phones...
I have been getting OTA updates but funnily enough it hasn't changed the version past 810.11 though I am on Sept. 2018 security patch...
I'll note that yesterday it updated, I got the "Android has successfully updated" message in notifications but it is STILL showing 8.10.11...
A bit easier than unlocking bootloader, then using fastboot, took literally the time to download the ROM and put it on my phone.
Up to you how you wish to do this BUT, please note, I can't go back to MIUI 9 Global Stable ROM now unless I unlock my bootloader.
Oh, and this WILL format your data partition so backup...

I tried this method and gave me an error, when I tried to reboot my phone it just went to the fastboot screen and not to the device. Can anyone help me?

Can I flash miui 10 beta on a locked bootloader with stock recovery?

[Question] Unlock Bootloader

Hi guys,
Following the steps listed in this video, How to unlock your Poco X3 NFC Bootloader (English).
Is it possible to remove the SIM card after starting the unlock to use it on another phone while waiting for this phone to be unlocked in 168 hours?
I wonder if the hours is counted by:
the time spent (on mobile data) regardless of the phone the SIM card is connected to
the time spent (on mobile data) specifically on POCO X3 NFC
the time POCO X3 NFC is idle with WiFi connection
Any thoughts on the following?

The answer is yes.
Note when the countdown will end.
Keep device logged into your Mi account.
Shutdown PX3.
Remove SIM card and use freely on any other device.
Patiently wait until after the end of the countdown.
Re-insert SIM card on the PX3 before booting it.
Proceed to unlock...
At least, that's how I did it (from surya V12.0.4.0.QJGEUXM).

pnin said:
The answer is yes.
Note when the countdown will end.
Keep device logged into your Mi account.
Shutdown PX3.
Remove SIM card and use freely on any other device.
Patiently wait until after the end of the countdown.
Re-insert SIM card on the PX3 before booting it.
Proceed to unlock...
At least, that's how I did it (from surya V12.0.4.0.QJGEUXM).
Click to expand...
Click to collapse
Thank you for the swift response, much appreciated! Interesting that one can turn off the POCO X3 NFC too!
My MIUI version is 12.0.7.0(QJGMIXM) if it means something for this unlocking.
I have just unlocked via tool and exit fastboot mode by holding down on the power button which caused the phone to reboot. Will take your advice and remove the SIM card for my own use until the countdown is completed.
The wait begins, will try an update after the 168 hours.
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pnin said:
The answer is yes.
Note when the countdown will end.
Keep device logged into your Mi account.
Shutdown PX3.
Remove SIM card and use freely on any other device.
Patiently wait until after the end of the countdown.
Re-insert SIM card on the PX3 before booting it.
Proceed to unlock...
At least, that's how I did it (from surya V12.0.4.0.QJGEUXM).
Click to expand...
Click to collapse
Hi @pnin, just to clarify,
Do we make sure the WiFi is OFF and Mobile Data is ON before re-inserting SIM card and then put it into fastboot to proceed to unlock?

players02 said:
Do we make sure the WiFi is OFF and Mobile Data is ON before re-inserting SIM card and then put it into fastboot to proceed to unlock?
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Just take care to insert the SIM before booting the device. I left everything else on defaults.

pnin said:
Just take care to insert the SIM before booting the device. I left everything else on defaults.
Click to expand...
Click to collapse
OK, thank you for sharing.
Time's almost up but I'll wait till tomorrow just to be safe.

Success!
Thank you for everything.

Mi Unlock Tool mod bypass OTP SMS

Hi everybody
Today I introduce a mod of Mi Unlock tool which is a patch to remove bypassing SMS OTP when logging in
At this point, the original Xiaomi unlocking tool requires SMS OTP verification after logging in. So if you can't access the phone number associated with Mi account, you can't use that account to unlock the bootloader.
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So this tool removes SMS OTP verification when you sign in.
This tool is not working for bypass otp anymore. If your account have to otp verify. It will show a white page
Download link: https://mifirm.net/downloadfile/55
Donate
Paypal: [email protected] or https://paypal.me/DangThanhTung
Skrill: [email protected]
USDT TRC20 wallet: TNeKRaAiakK3PsWXiVP1GsEzj3o3dxt3QF
Click to expand...
Click to collapse
How to unlock Bootloader Xiaomi phone?​After unlock bootloader the device, your phone becomes more vulnerable and less secure to malware attacks, which may lead to the disclosure and loss of your private data. Some features which require high security level (ex: Find device, added-value services, etc.) may no longer be available. Phone data like Photo, Contacts, SMS or application's data will be lost. Use at your own risk
1. Login with Mi account on your Xiaomi phone. Go to Setting - Phone information - Tap 7 times to MIUI version. It will notice developer options enabled
2. Go to Setting - Additional settings - Developer options - Mi Unlock status. Press Add account and wait to success notice. (This step require SIM card and mobile data enable)
3. Download the Mi Unlock tool to PC, and sign in with the Mi account which are loged in your Mi phone
4. Shutdown your phone manually, then hold Power and Volume down button to enter Fastboot mode
5. Connect your phone with the PC using USB cable and click Unlock
Click to expand...
Click to collapse
If you post this tool anywhere. Please provide the source link. Thank you
Source: https://mifirm.net/blog/mi-unlock-tool-bypass-otp-sms

Thanks for this, it worked great, I had been trying to unlock my phone for days but never receiving that verification sms.

Netphase said:
Thanks for this, it worked great, I had been trying to unlock my phone for days but never receiving that verification sms.
Click to expand...
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I am happy when hear it can help you. Enjoy

Not bad, Hopefully time baypass.

i receive unkown error 1
edit: tried a second computer and I ended up receiving the 168 hours wait time

mohawahba said:
i receive unkown error 1
edit: tried a second computer and I ended up receiving the 168 hours wait time
Click to expand...
Click to collapse
you should close app and open again then login, if still got -1 error, change other account

Im a NewBee（greenhand ），can this tool unlock bootloader mi phones with mi accout login in？
i thought it conflicts with step 3“Download the Mi Unlock tool to PC, and sign in with the Mi account which are loged in your Mi phone”
sorry，it was Somewhat beyond understanding!
thanks for your tool，i would try it if i have an opportunity to test。

Tungtata said:
you should close app and open again then login, if still got -1 error, change other account
Click to expand...
Click to collapse
it did not work, I had to wait for the entire week. Thanks

Not able to login to MI account. After logging just blank white screen.

after login just white screen

I also get the blank white screen.

salhazwara said:
after login just white screen
Click to expand...
Click to collapse
Hello did you solve?

Zaphyria said:
Hi Zaphyria unfortunately No but still looking .
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I have the same error.. blank screen...

I have the same blank screen. Please let me know when a new working modded unlock version is available. Appreciated.

Tungtata said:
Hi everybody
Today I introduce a mod of Mi Unlock tool which is a patch to remove bypassing SMS OTP when logging in
At this point, the original Xiaomi unlocking tool requires SMS OTP verification after logging in. So if you can't access the phone number associated with Mi account, you can't use that account to unlock the bootloader.
So this tool removes SMS OTP verification when you sign in.
Download link: https://mifirm.net/downloadfile/55
Donate
How to unlock Bootloader Xiaomi phone?​After unlock bootloader the device, your phone becomes more vulnerable and less secure to malware attacks, which may lead to the disclosure and loss of your private data. Some features which require high security level (ex: Find device, added-value services, etc.) may no longer be available. Phone data like Photo, Contacts, SMS or application's data will be lost. Use at your own risk
If you post this tool anywhere. Please provide the source link. Thank you
Source: https://mifirm.net/blog/mi-unlock-tool-bypass-otp-sms
Click to expand...
Click to collapse
not workig bro

Does this OTP bypassing mod still works? Some people say it's a blank white screen when logging in, but I think that's just an internet side problem since that happens to me sometimes too on the regular Mi Unlock Tool.

Can you release the source code so we can verify there is no backdoor, account takeover or malware in it?

noraj1137 said:
Can you release the source code so we can verify there is no backdoor, account takeover or malware in it?
Click to expand...
Click to collapse
This tool is not working anymore. And do not use if you do not trust.

Question [Bootloader] your account is not authorized to unlock. please change another

Hello everyone,I have recently bought a Poco X4 pro 5G. I'm trying to unlock its bootloader, but the MiFlash Unlock tool got me this error "your account is not authorized to unlock. please change another". I have activated the developer options in the terminal and enable the USB debugging and OEM unlock. When I try to "add Mi account and device" in Mi Unlock state menu in developer options, I get the same error than MiFlash Unlock tool: "your account is not authorized to unlock. please change another".
I have unlocked other devices in the past with this account (more than 2 years) and I have quit these devices from my Mi Account, so I only have linked the one I'm trying right now.
I don't know what I can do more . I don't have other SIM cards to try with differents accounts. Please help me.
Thanks
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i have the same problem, i hope someone could help us soon

i have the same problem. from 2 week i try and failed

Hi,
could you solve the problem? I ran into the same error. I waited 143 hours, and don't know what I did wrong with my account. Next time I tried to unlock, I got this error.
On mi forums some people decided to open a completely new account with new sim card and phone number, and then it worked for them. I don't know is an option for me, since I have just one sim card and don't want a new one wih a new number.
While my device is a Redmi Note 9 Pro for less then 200 €, it seems to be really ridiculous making, it that complicated to unlock the bootloader.
Funfact, the Mi tool for Linux says, my User photo scores too low or black (error 20033).
best regards

Hi everyone,
I could solve this. That's simple, the only thing you have to do is to clean and to delete your Mi Account from all of your Xiaomi devices and create another one new with the same phone number (it doesn't matter). Then I could unlock my bootloader

Thank you for your fast response. I will give it a try, since I have nothing to lose.

I created a new mail account and passed.
Because something went wrong with the previous account and it kept failing.

Okay, that's interessting. I created a new account. And now they want me to use another SIM, since mine was used to Register to many Accounts..."pleased Change another"
I'm starting to hate Xiaomi, though I have to say, the Hardware is really good.
So I gave up opening bootloader for the moment. I debloated MIUI and wait for 13.

I had this exact issue. Used a second sim to make a new account. Let's hope this time it works.

I had to delete my Mi account and recreate it for the unlock to work (… after waiting 168h again).