Locking and unlocking bootloader on stock ROM&Recovery - Xiaomi Redmi Note 4 Questions & Answers

Hi!
What happens if you don't have permission to unlock bootloader and you still try to do it using fastboot oem unlock on Xiaomi Phones?
I have already got the permission and I've rooted my phone, so I didn't really try it because I was simply afraid. Has anybody tested that?
Also, if I relock my bootloader again using fastboot oem lock, will I be able to unlock it using fastboot oem unlock or will I have to use MI tool?
Aaaand the last question - I haven't installed custom rom or TWRP - I booted TWRP using fastboot boot xxx.img, then installed SuperSU package. Is it dangerous to lock bootloader with phone rooted? Recovery is still stock, so ....

Related

CM13 bootloader issue

I have version 0323 of this rom http://forum.xda-developers.com/one.../rom-cyanogenmod-13-x-oneplus-x-onyx-t3279784 installed and I dont have custom recovery flashed I just boot into TWRP whenever I need to. Today I decided to flash 4K camera mod, but when I tried to boot into TWRP and abd said this (see picture). I've used a lot of different roms before this one and i've never had any problems with this.
It is a unoffical CM13 rom and I have unlocked my bootloader with fastboot oem unlock command and I have checked enable OEM unlock in the developer options. So should I try to unlock bootloader again?
Your bootloader is obviously locked. Try and see if you can unlock it via fastboot.

Question regarding relocking bootloader

Today i finally unlocked my bootloader officially...
My doubt is that,
1. How to relock bootloader.
2. If it is relocked, how to unlock it again.
Same question
the same Question ?
Any answers??​
asrupesh said:
Today i finally unlocked my bootloader officially...
My doubt is that,
1. How to relock bootloader.
2. If it is relocked, how to unlock it again.
Click to expand...
Click to collapse
To relock the bootloader, just flash an official miui fastboot rom via miflash and you're done....
If you have unlocked officially, you can just unlock your bootloader anytime without asking permission from xiaomi again...
If you have unlocked your device unofficially, repeat the steps you did for unlocking your device or unlock officially.....
ayush321 said:
To relock the bootloader, just flash an official miui fastboot rom via miflash and you're done....
If you have unlocked officially, you can just unlock your bootloader anytime without asking permission from xiaomi again...
If you have unlocked your device unofficially, repeat the steps you did for unlocking your device or unlock officially.....
Click to expand...
Click to collapse
Thanks for replying today i flash miui stock fastboot via miflash and checked using this code "fastboot oem device-info"
it still shows "device unlocked= true"
it didint relock my bootloder....
asrupesh said:
Thanks for replying today i flash miui stock fastboot via miflash and checked using this code "fastboot oem device-info"
it still shows "device unlocked= true"
it didint relock my bootloder....
Click to expand...
Click to collapse
can you try with fastboot oem lock?
rajneeshk said:
can you try with fastboot oem lock?
Click to expand...
Click to collapse
Sorry dude I can't, I dont want to risk it....
asrupesh said:
Today i finally unlocked my bootloader officially...
My doubt is that,
1. How to relock bootloader.
2. If it is relocked, how to unlock it again.
Click to expand...
Click to collapse
I see many asking how to Relock Bootloader, especially those who had unlocked unofficially.
http://forum.xda-developers.com/showpost.php?p=66962198&postcount=7
The steps to be followed are following:
(1) Turn on USB debugging for your phone;
Go to Settings -- About Phone --> Touch 7 times on "MIUI version" to Enable Developer Options.
Now go to Settings - Additional Settings - Developer Options --> USB debugging.
Enable USB Debugging and Connect to PC.
(2) Download Fastboot ROM (file extension .tgz or .tar) from
Code:
http://en.miui.com/a-234.html
(3) Boot into EDL
adb devices (to check it's connected)
adb reboot edl
(4) Use MI Flash Tool to Flash the Fastboot ROM
One done it will be locked... To relock follow same steps as done earlier - either official or unofficial

Locked bootloader - flash fast boot rooted ROM

I'm currently stuck waiting for xiaomi to properly add my device to their unlocking server, hopefully enabling me to unlock my bootloader. (I'm stuck at 50% during the unlock process)
My phone came with the factory installed China ROM. I then installed over this with the Global Stable fastboot ROM via EDL. Would it be possible to pre-root this fastboot image and flash via edl, enabling root with the bootloader still locked?
I am only wanting to root my device once unlocked, so thought this may be possible?
no dm verity in boot img in locked bootloader will refuse to boot your device.simply it will brick your device and end with a heavy paperweight and nothing
Sent from my Redmi Note 3 using Tapatalk
brent0r said:
I'm currently stuck waiting for xiaomi to properly add my device to their unlocking server, hopefully enabling me to unlock my bootloader. (I'm stuck at 50% during the unlock process)
My phone came with the factory installed China ROM. I then installed over this with the Global Stable fastboot ROM via EDL. Would it be possible to pre-root this fastboot image and flash via edl, enabling root with the bootloader still locked?
I am only wanting to root my device once unlocked, so thought this may be possible?
Click to expand...
Click to collapse
I am waiting not going to chance it.

Redmi note 4x bricked on bootloader locked with fastboot command

Hello!
Today i was trying to return to factory conditions on my mido (recovery, ROM, bootloader, etc) but i locked the bootloader with "fastboot oem lock" instead of doing it with miunlock.
Now i am unable to flash anything, from fastboot roms, to custom recoveries, to anything.
Is there any way i can try and revive my device? I tried using miflash, unlocking again with miunlock, all to no avail.
Thanks in advance,
Carlo
Try this
Boot into bootloader and then connect to pc install mi flash tool and then after downloading rom click on clean and lock
Solved by using miunlock version at this link http<colon><slash><slash>en<dot>miui<dot>com<slash>forum<dot>php?mod=redirect&goto=findpost&ptid=204866&pid=
I unlocked the bootloader succesfully (amazingly!), flashed the fastboot rom with miflash and phone revived!
Hope this can be helpful to people with my same problem!

Xiaomi Smart Watch Bootloader Unlock

Hey I am trying to flash a custom recovery in order to install a new ROM but I can`t unlock the bootloader.I tried using fastboot oem unlock and fastboot flashing unlocking but the bootloader remain locked

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