How do I unlock the bootloader?? - Xiaomi Redmi 4X Questions & Answers

So I can't seem to get the phone's bootloader to unlock... using the official tool, v.7.6, in the log I see its trying to execute "fastboot oem get-token" but the phone doesn't react to the command and just says "FAILED (remote: 'unknown command')" What should I do about it???

So I found a solution, you have to download v.5.5.1224.27, any other version doesn't work, it has to be this specific one.

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Need Help Relocking The Bootloder **Solved**

** Nevermind, i found the command i needed.
fastboot oem asus-csc_lk
Hello, im having hardware problems and having to send my rog phone 2 back, but the bootloader is unlocked and i cant relock it. I've gone on google and tryed everything but i keep getting errors. Does anyone know how to relock it? Im kind of stressing out.
Fastboot can detect the phone but no matter what i do it just says "FAILED"
Commands:
fastboot flashing lock = FAILED (remote: 'permission denied')
fastboot oem lock = FAILED (remote: 'unknown command')
Thank you for your help.

Bootloader Won't Unlock FAILED (remote: password is error!!) *SOLVED*

Right, I tried everything but my bootloader just won't unlock using "fastboot oem nubia_unlock NUBIA_NX609J" I keep getting FAILED (remote: password is error!!)
does anybody has idea to bypass that??
edit: in my case just to be sure I installed the drivers again and then tried again and I didn't get any issue, I think the problem would be the adb drivers might be out of date, so updating it solved the issue.

How can I Relock Bootloader

Hello Everyone
How can I Relock Bootloader in my Asus rog phone 3 I unlocked bay mistake in asus unlocked tool so please tel me how can i relock bootloader
Thanks
Best Regards
fastboot oem asus-lock
When I try to relock my ROG Phone with this command or use any other fastboot command, I get:
FAILED (remote: 'Command not supported in default implementation')
can someone explain how to set up the Tool correctly? I cannot find any guide on it...
Hectorim said:
When I try to relock my ROG Phone with this command or use any other fastboot command, I get:
FAILED (remote: 'Command not supported in default implementation')
can someone explain how to set up the Tool correctly? I cannot find any guide on it...
Click to expand...
Click to collapse
go onto usb debugging and switch protocol
If you do this in Fastboot mode through recovery mode, it won't work. YOu need to be in direct Fastboot mode

Relock bootloader Failed

I'm trying to lock the Asus Rog Phone 3's bootloader again. But no matter what I try to do with external programs or cmd command ... I only get the message "FAILED (remote: Command not supported in default implementation)"
Does anyone know what that means or what I can do to lock the bootloader again?

Question Oneplus 10 Pro Lock Bootloader

Hi, i wanted to relock my Bootloader again. I deinstalled Magisk per app , did a factory reset and now i should be able to do Fastboot oem Lock in adb or not ? Cause i get failure every Time i try that its an unknown command. Can someone Help me mabye?
Edit like that, Reboot Bootloader work but then from there on not.
C:\adb2>adb reboot bootloader
C:\adb2>fastboot oem lock
FAILED (remote: 'unknown command')
fastboot: error: Command failed
We used fastboot flashing unlock to unlock bootloader so I guess you need to use
Fastboot flashing lock
yes that was it thank you much

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