Bootloader got Relocked and unable to unlock now - Xiaomi Redmi Note 3 Questions & Answers

I was using AICP Nougat rom on my RN3Pro. Tried flashing Epic rom 6.10.27 and got error. so reverted back to the backup i had created. when i checked my bootloader status, it showed false. so i tried to unlock using MI Unlock Tool, but it again fails to unlock and gives 50% error. i had already unlocked bootloader officially.Now not getting to apply for unlock option too in website.Please help

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honor 7 bootloader relock issue on PLK-L01

hi,
I have successfully installed multitool and then using multitool - unlocked bootloader , installed TWRP and installed super SU.
I have tested the phone for native call recording using the changes suggested. once testing is finished I wanted my phone to go unroot and relock the boot loader. I have tried that but it is not working. It is coming up as FAILED (remote root type is at risk).
I have also updated after that to OTA B370 successfully. I have checked with root check that there is no root access to the phone. how can I relock my bootloader on this phone please. thanks in advance.
@palbhan You can relock your phone by using this method, I have written a pretty short guide there, please follow it carefully.

Bootloader Unlock = No after Restore.

I have a Z5C(E5803) that was originally able to unlock the bootloader and let me flash ROMs, specifically the Cyanogen ROM that CTXz has been working on. I ran out of power and got stuck in some kind of nasty bootloop yesterday that prompted me to re-flash boot.img and TWRP.
After I did these things I left it charging for a few hours and it was able to boot into TWRP where I then restored it to a backup of the basic Xperia pre-loaded ROM.
This all worked fine, thought I could boot into TWRP and just flash the Cyanogen zip again. I can get into TWRP just fine but I attempt to flash Cyanogen I get an "ERROR 7"
I have since done several wipes, gotten into the bootloader settings by entering that code in the dialer and have seen that bootloader unlock = no. I distinctly remember bootloder unlocking being allowed the first time I installed CM on my device, what could have caused this?
I was able to use it with fastboot anyway and install CM13 again, maybe this was a bug?
When I tried using oem unlock command with fastboot it said my device was already rooted even though I had just restored from a backup, and then I just proceeded normally from there.
use CM13 official Recovery to FLASH CM13.
also i don't think so twrp3.0.2 is out there for z5c. are you using any other variants Twrp? (YUGA ? )

Unofficial Unlock Redmi Note 3 on Marshmallow

i want to know how to Unlock Bootloader on redmi note 3 on marshmallow.
in Lollipop version i need to just replace emmc appsboot file in fastboot rom extracted folder then i can easily unlock its bootloader and installed twrp
but in marshmallow when i replaced same file which i used to unlock in lollipop fastboot rom it always shows unlock failed error
please anybody tell the solution for this
also i tried to unlock Officially. i got confirmation message on my both mi account to unlock permission but it always gives error current account is different from device account information
please help me to unlock bootloader officially/Unofficially on Marshmallow only
sumitkhkh said:
i want to know how to Unlock Bootloader on redmi note 3 on marshmallow.
in Lollipop version i need to just replace emmc appsboot file in fastboot rom extracted folder then i can easily unlock its bootloader and installed twrp
but in marshmallow when i replaced same file which i used to unlock in lollipop fastboot rom it always shows unlock failed error
please anybody tell the solution for this
also i tried to unlock Officially. i got confirmation message on my both mi account to unlock permission but it always gives error current account is different from device account information
please help me to unlock bootloader officially/Unofficially on Marshmallow only
Click to expand...
Click to collapse
I can't answer about the unofficial unlock question but regarding to the error "current account is different from device account information" after you get confirmation to officially unlock the device, it might take up to two weeks for your unlock permission data to reach their server. So just wait and you will be able to unlock officially later.
sumitkhkh said:
i want to know how to Unlock Bootloader on redmi note 3 on marshmallow.
in Lollipop version i need to just replace emmc appsboot file in fastboot rom extracted folder then i can easily unlock its bootloader and installed twrp
but in marshmallow when i replaced same file which i used to unlock in lollipop fastboot rom it always shows unlock failed error
please anybody tell the solution for this
also i tried to unlock Officially. i got confirmation message on my both mi account to unlock permission but it always gives error current account is different from device account information
please help me to unlock bootloader officially/Unofficially on Marshmallow only
Click to expand...
Click to collapse
I had unlocked unofficially on LP. Flashed Global Stable 8.0.6.0
In order to move to MM, I downloaded EU Global Dev 7.1.19 and Flashed via ALKA TWRP. All is will except that I cannot set pin/pattern/password/fingerprint lock.

Flashing miui official rom can relock bootloader?

Flashing miui official rom can relock bootloader?
How to avoid relock ? ( I am with redmi Note 4x, miui global stable 8.2.2 rom with officially unlocked bootloader)
flashing via fastboot will lock it
i don't know about flashing by recovery.
But since you already got the permission, you can unlock it again after locking it
neilsp said:
flashing via fastboot will lock it
i don't know about flashing by recovery.
But since you already got the permission, you can unlock it again after locking it
Click to expand...
Click to collapse
Yes, but in redmi Note 3, I just delete Emmc appsboot.bin and no automatic relock. is it same for redmi Note 4?
I was on aosp ROM and I flashed miui global stable ROM and I still have twrp recovery...
So I guess flashing recovery ROM will not relock the bootloader...
It doesn't relock your bootloader, and even if it did you could simply re-unlock it in an instant.
drmuruga said:
Flashing miui official rom can relock bootloader?
How to avoid relock ? ( I am with redmi Note 4x, miui global stable 8.2.2 rom with officially unlocked bootloader)
Click to expand...
Click to collapse
Here are the different possible and impossible situations
Flash from TWRP - no lock
Flash from default recovery - how do you have that with custom ROMs?
Flash from Fastboot using Mi Flash tool - you get the option to keep data, clean all, or clean all and lock bootloader.
Oh and even if your phone gets relocked, you can unlock it within seconds. Neither did I request unlock permissions, nor did I get the 50% error when I unlocked my phone the second time.

Bootloader problem

My redmi4(Indian) bootloader was unlocked 2weeks ago.After that I rooted my phone using supersu with Twrp recovery.. Yesterday completely unrooted and uninstalled supersu..Then i installed MAGISK using same Twrp, and successfully rooted again... Now my phone showing "unlocked" when switching on, but "device locked and secured" in bootloader status... Now Can I able to flash a custom ROM or not ? I don't want to brick my phone ..Any about this guy's ?

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