MIUI 11 Sensors don't work, locked bootloader, but logged in to my Mi account - Xiaomi Redmi 4X Questions & Answers

Somehow I locked my bootloader while playing (flashing Lineage OS) with my phone. After that, I wanted to install MIUI but discovered a locked bootloader. Tried many ways to flash stock, but the only way in recovery and connect to mi assistant worked (don't remember the name of the program, something unofficial like XiaomiTools v2 or so, can check later). So now I have my phone with stock and sensors don't work (at least Bluetooth, wi-fi, likely GPS, screen rotate), stock recovery and locked bootloader. I am logged to my Mi account but when I press to add a device in Mi unlock status, It shows: "Preparing to add account and device...", the button greys out and nothing happens then. I've tried a lot of times but it simply doesn't work. Please, help me.

So, there is nothing I can do?

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Mi 9 bricked - Locked bootloader & MiUI version can't be installed on this device

Hi all,
I have searched for a solution to this but haven't come across anyone witht the same issue.
I bought a Mi 9 from China which came with the Global rom loaded. I found out that I couldn't use Google Pay unless I rooted with Magisk.
So I went through the process of trying to flash Magisk through fast boot (didn't work - boot loop to recovery) then with TWRP (didn't work - boot to TWRP and freeze).
I then used Miflash to flash the latest global stable version. Unfortunately I didn't notice it was defaulted to "clean all and lock" when I flashed. When the device restarted, it loaded into recovery and was no longer unlocked. The message is "This MIUI version can't be installed on this device". But I can't flash again, because its locked.
I downloaded the MiUnlock app and after running it get the message "Current account is not bound to this device" with instructions to change settings in developer options. But I can't access the developer options because the MIUI isn't loading.
So, yeah. I think I'm in trouble. Any suggestions?
If your device was global version i would say flash fastboot ROM with Mi flash tool or using script flash_all.bat. Then bound your account to your device, then try to unlock recovery. But i red that in some cases Chines version is not so simple, so search, how to flash fastboot ROM on Chines device and if there is some problems with this.
You will need adb and fastboot installed on your pc.
Upd. Man it's all over the internet, just search "This miui version can't be installed on this device". There is a fix with opening the device and so on... but if i was you i would try to contact the seller of the device and ask him to use his account to unlock recovery. My be using teamviewer or similar software.
you bought in china with global rom and it was unlocked already ? because if you tried twrp then the device must be unlocked (bootloader)
then it was a China Version with unlocked bootloader and global rom. you used then the miflash and locked the bootloader again and flashed the global rom...
so you bricked your device....
if found this in an other forum:
"Dear customers, our service provides services in a remote format, if you are from another country .
If you need Mi Authorized EDL Account or you need my services for the restoration of the brick phones and the account is deleted, mi, if you forgot , contact me on my contacts : WhatsApp +7967 777 15 98"
g_seva said:
If your device was global version i would say flash fastboot ROM with Mi flash tool or using script flash_all.bat. Then bound your account to your device, then try to unlock recovery. But i red that in some cases Chines version is not so simple, so search, how to flash fastboot ROM on Chines device and if there is some problems with this.
You will need adb and fastboot installed on your pc.
Upd. Man it's all over the internet, just search "This miui version can't be installed on this device". There is a fix with opening the device and so on... but if i was you i would try to contact the seller of the device and ask him to use his account to unlock recovery. My be using teamviewer or similar software.
Click to expand...
Click to collapse
Thanks! I searched as suggested and am trying a fix from the MIUI forum "[FIX] unbrick your BL LOCKED phone without xiaomi id authorization!!!". If that doesn' work I'll go with the team viewer option. Cheers!
minnnism said:
Hi all,
I have searched for a solution to this but haven't come across anyone witht the same issue.
I bought a Mi 9 from China which came with the Global rom loaded. I found out that I couldn't use Google Pay unless I rooted with Magisk.
So I went through the process of trying to flash Magisk through fast boot (didn't work - boot loop to recovery) then with TWRP (didn't work - boot to TWRP and freeze).
I then used Miflash to flash the latest global stable version. Unfortunately I didn't notice it was defaulted to "clean all and lock" when I flashed. When the device restarted, it loaded into recovery and was no longer unlocked. The message is "This MIUI version can't be installed on this device". But I can't flash again, because its locked.
I downloaded the MiUnlock app and after running it get the message "Current account is not bound to this device" with instructions to change settings in developer options. But I can't access the developer options because the MIUI isn't loading.
So, yeah. I think I'm in trouble. Any suggestions?
Click to expand...
Click to collapse
https://forum.xda-developers.com/Mi-9/help/soldthis-miui-version-installed-device-t3975421
Read carefully and report
1. Try to hold down the buttons vol down and power, see if : fastboot devices sees it. If so XiaoMi Tool will restore it. If not do the same try recovery vol up + power. Do adb devices and see if anything shows up. Worst case you'll have to open the phone up and connect the EDL pins together and it will flash anything. I use minimal ADB and Fastboot phone plugged via USB cable into the computer and run those commands.
2. Fully bricks their device here is the unbrick factory method
https://c.mi.com/thread-1479882-1-0.html
that's connecting EDL pins with the phone case removed for a phone that doesn't boot at all
3. https://youtu.be/8mW0JzKow7E
here's the exact EDL test point required on Mi9
if you can't boot or recognize the device at all via fastboot or ADB. If this doesn't work nothing will...
But it will work, that's what the factory does. Obviously the last resort.
any success?

Mi9 Global - Accidentally locked bootloader and stock in recovery/fastboot

Hi,
Recently purchased a Mi 9 Global version, got the OTA update to MIUI 11, and everything was well. It is a superb phone, but I like to have root on my phones (mostly for Adblocking and System2, better control overall). I tried to install TWRP (custom version for Mi9) because I wanted to install Magisk/Root or try a different rom eventually. Anyway... I made a huge mistake. After trying to reboot, I noticed things had gone wrong, and was stuck in a boot loop. I guess I panicked and tried to flash the phone back to the latest global MIUI rom (Version 11, Android 10, from official site), using the Xiaomi Flash App but I did not uncheck the "clean and lock bootloader" checkbox on the bottom right of the app, which is somehow enabled by default. The flash failed at that time, for unknown reason, but it seems like it succeeded in locking my bootloader, with an empty partition, except for fastboot access and Mi Recovery module. I have to admit I've always been pretty lucky with all my previous flashes on other devices, and I guess I got a little careless. That was pretty stupid of me, in retrospect.
Since then, I am stuck in either Mi Recovery or Fastboot, and it seems that my originally Global Mi 9 with unlock bootloader has now a locked bootloader. Any attempt at either using the Xiaomi Flash utility gives me an error message ("Erase boot error"), and if I boot into Fastboot and try to flash TWRP, I get the "Remote:Erase is not allowed in Lock State" error.
From what I understand, my options are pretty limited now. The phone is still powered on, stuck in Recovery mode and rebooting every 5 or 10 minutes by itself (probably a way to avoid screen burn-in?), but I can't seem to be able to shut it down in anyway, as there are no fastboot commands to send a shutdown signal. And no matter what button combination I press, the phone always ends up rebooting.
I tried the Xiaomi Unlocker utility, but it needs the phone to be out of recovery to check the credentials binding the phone to my account. All data on the phone has been wiped already, so that's not an option. Two options I have seen :
1. Open the battery cover (required a heat gun and risky), to short some pins and try to flash while there is a short to circumvent the security. I'm not that brave yet, and since the phone is still running and has probably about 80% battery, I don't want to use a heat gun on the device.
2. Shady stuff involving paying 30 or 40 Euros to a random guy who can somehow make everything work magically by remotely logging in on my computer via Teamviewer (Not happening in a million years).
I'm wondering if there is an alternative, other than bringing the device to an official Xiaomi store (I'm in Bangkok and they do have one official shop at Fortune Town), but even then, I don't know if they'll just tell me I got myself an expensive paperweight.
Any help/insight regarding this issue would be much, much appreciated!
Have you tried to press and hold power+vol down when your device reboots? Just before it turns on.
g_seva said:
Have you tried to press and hold power+vol down when your device reboots? Just before it turns on.
Click to expand...
Click to collapse
Every possible combination on reboot will either bring me to Fastboot or Mi Recovery. I have wiped the data partition, there is no OS on the phone as of now.
Twomby said:
Every possible combination on reboot will either bring me to Fastboot or Mi Recovery. I have wiped the data partition, there is no OS on the phone as of now.
Click to expand...
Click to collapse
So xiaomi unlock utility can't unlock bootloader in fastboot?
May be try to use xiaomitool v2.
g_seva said:
So xiaomi unlock utility can't unlock bootloader in fastboot?
May be try to use xiaomitool v2.
Click to expand...
Click to collapse
Xiaomitool V2 is completely useless. The "My phone is bricked" option is not implemented, and I cannot boot into the OS, unfortunately.
To enter fastboot mode, long press the volume down key and the power key. Then unlock bootloader with Xiaomi app.
zahdekar said:
To enter fastboot mode, long press the volume down key and the power key. Then flash stock rom.
Click to expand...
Click to collapse
I have managed to enter fastboot mode, as described in my initial post. The problem is that when I try to flash, I get the following error: "Flashing not allowed in lock state".
Twomby said:
Xiaomitool V2 is completely useless. The "My phone is bricked" option is not implemented, and I cannot boot into the OS, unfortunately.
Click to expand...
Click to collapse
Yep, but it has unlock option in the normal mode and it use scripts made by tool developer, so it worth to try.
g_seva said:
Yep, but it has unlock option in the normal mode and it use scripts made by tool developer, so it worth to try.
Click to expand...
Click to collapse
From what I understand, the "normal mode" needs the tool to be able to access the OS while it's running. I don't have an OS. I will give it a shot tomorrow (3 AM here, exhausted, and don't want to boot into Windows again!), but my hopes are not so high. Anyway, thanks for the help, much appreciated! Will let you know what happens! Cheers!
https://forum.xda-developers.com/Mi-9/how-to/unbrick-mi9-bootloader-locked-destroyed-t3924966/amp/
maybe it will help
zahdekar said:
https://forum.xda-developers.com/Mi-9/how-to/unbrick-mi9-bootloader-locked-destroyed-t3924966/amp/
maybe it will help
Click to expand...
Click to collapse
I've stumbled upon this link earlier today. But it's 404 on my end. Can you access it from where you are? Thanks!
http://c.mi.com/thread-2251372-1-1.html
This is on page 4
zahdekar said:
http://c.mi.com/thread-2251372-1-1.html
This is on page 4
Click to expand...
Click to collapse
Thanks. Tried it, but using these commands only cause a reboot, to recovery mode again. Thanks again for your kind help!
Twomby said:
Thanks. Tried it, but using these commands only cause a reboot, to recovery mode again. Thanks again for your kind help!
Click to expand...
Click to collapse
I have the same problem! "The system has been destroyed" (((
And mi unlock tool not work abount 2 days (authorization not passes)
https://forum.xda-developers.com/Mi-9/help/help-bricked-mi-9-t3921980/page2
The old version of miunlock is working ti unlock bootloader.
zahdekar said:
https://forum.xda-developers.com/Mi-9/help/help-bricked-mi-9-t3921980/page2
The old version of miunlock is working ti unlock bootloader.
Click to expand...
Click to collapse
Unfortunately, this is not true. I have downloaded an old version of Mi Unlock (2.2.406.5), which is supposed to work with Fastboot mode. The result is "Couldn't unlock --> Please download the latest version". And the latest version needs to access the OS to verify the Mi account credentials. I don't have an OS installed. So this won't work. Thanks for the suggestion though!
Twomby said:
Unfortunately, this is not true. I have downloaded an old version of Mi Unlock (2.2.406.5), which is supposed to work with Fastboot mode. The result is "Couldn't unlock --> Please download the latest version". And the latest version needs to access the OS to verify the Mi account credentials. I don't have an OS installed. So this won't work. Thanks for the suggestion though!
Click to expand...
Click to collapse
Hello @Twomby did you managed to get it working it the end?
Same issue here
Hi,
I am encouraging the same issue. Does someone found a solution to this?
tago4ever said:
Hi,
I am encouraging the same issue. Does someone found a solution to this?
Click to expand...
Click to collapse
I came across this Mi8 thread, not sure if it's possible on the Mi9, but he seems to have been able to flash it through EDL mode, you might ask him the question: https://xiaomi.eu/community/threads/mi-8-bricked-from-nowhere.55723/#post-543605
There's also this Mi9 thread: https://forum.xda-developers.com/Mi-9/how-to/unbrick-mi9-bootloader-locked-destroyed-t3924966

Cant add Mi Account after flashing phone.

My device is redmi 4x. I tried to install a custom rom though TWRP recovery but however it started to bootloop. So i flashed the device and forgot to "Do Flash and unlock". After flashing i was unable to add mi account, for that reason I cant unlock the boatloader. And the fingerprint sensor, wifi, bluetooth, hotspot is not working as well and whenever i reboot the phone, it shows " Find device corrupted".
Now please someone help me about unlocking boatloader without mi account or adding the mi account. thanks
Try to flash by edl mode. Look this link
After this flash successful you can unlock it by mi unlock tool older version, see this video
Fahimulhasan said:
My device is redmi 4x. I tried to install a custom rom though TWRP recovery but however it started to bootloop. So i flashed the device and forgot to "Do Flash and unlock". After flashing i was unable to add mi account, for that reason I cant unlock the boatloader. And the fingerprint sensor, wifi, bluetooth, hotspot is not working as well and whenever i reboot the phone, it shows " Find device corrupted".
Now please someone help me about unlocking boatloader without mi account or adding the mi account. thanks
Click to expand...
Click to collapse
I think you can't bypass unlock bootloader whitout permission, you should re-flash your system
1. Re-flash your Miui ROM using fastboot method, in miflash select clean all (warning all your data will be lost)
2. Boot to system
3. Add you mi account
Here is the complete to use flashing using miflash

Locked bootloader, unable to add miui account.

Hi, I bought my mi5 almost immediately after the release. I unlocked the bootloader and used the phone for all these years. Very recently while flushing with MI FLASH I accidentally ticked the flash all and lock option.
After that , bootloader is locked and can't add miui account so can't unlock the bootloader.After the boot it shows find storage device corrupted. I tried to flash via edl but deep flash cable/test point isn't taking it to the edl mode.Fastboot is almost un- usable. I was in latest global stable after trying a few tricks managed to flash global developer room.Still can't add the middle account that gonna bound my device to the account so that I can unlock the bootloader.
Any Idea?:crying:

Stuck on bootloop, can't pass even after flashing

So, i got a second hand mi 5 last week. Seller told me that it had software issue and I thought I could fix it. Because it was really cheap.
The device was stuck on bootloop when I had it. But I was able to open mi recovery and fast boot menus. i tried many options to flash a stable stock rom. The most useful one was to flash via XiaomiTool v2. It says successfully flashed and reboots but stuck on bootloop every time. (Tried few times already).
the bootloader is locked and no mi accounts binded to the device. Computer detects the device successfully.
I tried adb commands as well, but since bootloader is locked i couldn't get any further to flash or wipe.
Any useful suggestions?
Can you still access to fastboot mode?
If so, you need fastboot oem unlock to unlock bootloader first, before anything else.

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