Develop Bugs

Bootloader unlock problems?

Hello,
I bought a 64gb version throw gearbest and they installed a vendors version 7.3.14.0.0 not oficial rom. With defeats the purpose of the bootloader being locked.
I want to install the original miui 8 china or miui 8 from xiaomi.eu.
If I unlock my bootloader by submitting the request to xiaomi what I lose? What are the disavantages?
Does the fingerprint reader works on a bootloader unlocked phone with official miui 8 china?
Does it work with xiaomi.eu rom?
What are the features that cease to work with an unlocked bootloader with these two roms?
If I install xiaomi.eu rom without unlock the bootloader using Doom Slayer method I must not update by OTA or I will brick it, right?
And oficial miui 8 can I update by OTA?
Sorry for these questions but is my first xiaomi with locked bootloader and don't want to screw up by not knowing the consequences of each method?
Thanks in advance

filtragem said:
Hello,
I bought a 64gb version throw gearbest and they installed a vendors version 7.3.14.0.0 not oficial rom. With defeats the purpose of the bootloader being locked.
I want to install the original miui 8 china or miui 8 from xiaomi.eu.
If I unlock my bootloader by submitting the request to xiaomi what I lose? What are the disavantages?
Does the fingerprint reader works on a bootloader unlocked phone with official miui 8 china?
Does it work with xiaomi.eu rom?
What are the features that cease to work with an unlocked bootloader with these two roms?
If I install xiaomi.eu rom without unlock the bootloader using Doom Slayer method I must not update by OTA or I will brick it, right?
And oficial miui 8 can I update by OTA?
Sorry for these questions but is my first xiaomi with locked bootloader and don't want to screw up by not knowing the consequences of each method?
Thanks in advance
Click to expand...
Click to collapse
The fingerprint will work. But Find phone will not work and it will not be secure. But your phone will be less secure like if gets stolen anybody can flash firmware and you will be loser. With find my phone nobody could even flash firmware . I have got permission within 2 days for unlocking but i have not done but i have flashed chinese firmware by using miflash. the link is here http://en.miui.com/thread-326039-1-1.html. it is very safe that way.

seking said:
The fingerprint will work. But Find phone will not work and it will not be secure. But your phone will be less secure like if gets stolen anybody can flash firmware and you will be loser. With find my phone nobody could even flash firmware . I have got permission within 2 days for unlocking but i have not done but i have flashed chinese firmware by using miflash. the link is here http://en.miui.com/thread-326039-1-1.html. it is very safe that way.
Click to expand...
Click to collapse
Security is not about flashing, is about protecting your data. Encryption makes phone more secure, not locked bootloader. We have ways to flash whatever we want with locked bootloader... how about that? Do you still fil secure?

Thank you both,
@seking for what I could understand this is the xiaomi.eu rom with even more stuff, right?
Do you have the helium version?
For that rom you just need the miflash to flash the rom via fastboot, right?
This is different from the Doom Slayer method because with it we fastboot the TWRP recovery and then use it to flash the xiaomi rom.
@nijel8, that is my question also the locked bootloader doesn't add security, gearbest flashed a custom rom even with it locked, so the security reason isn't a valid one.
Partition encrypting is only available when the bootloader is locked? If so that is one feature that is gone with unlocking.
If one unlock the bootloader can later lock it again?
With the bootloader locked we can't use miflash tool to flash fastboot rom, right? Only using EDL, and even then from what I could understand the system and data partition need to be formatted and that removes the encryption...
I just want to get rid of a rom that I don't know what is it and install a oficial rom or a rom from good sources like xiaomi.eu
After replace my rom can I update it by OTA or after I must update only by fastboot ot TWRP?
Thanks again

Bootloader status has nothing to do with encryption. Encryption always is a user option in any ROM... Not sure about MIUI though b/c they enforce encryption on both system and userdata partitions in ramdisk fstab so no user choice as far as I know. And yes... You can always lock bootloader back but will loose your data in process.
Not going to answer the second set of questions (see my signature ) not b/c I don't know but b/c never done it myself so yeah...

mi max is comparatively new phone. there are notnmany roms. development still new. therefore be careful of what you flash. for hardbrick solving we have to open the back cover which is risky. i have taken the safe mthod of not unlocking it. i flashed the rom on the locked rom with miflash via EDL. one can always flash the official rom through twrp and you will be safe.

Thanks a lot you two.
Trying to get the most information before doing something wrong.

Don't worry... Mi Max poves to be die hard phone...

I bought the Chinese version of MIX3, but I want to FLASHi the international ver。

I saw an international version of the ZIP package coming out. OTA cannot be upgraded directly.
What should I do?
thanks.
I prefer to FLASHthe Xiaomi International Edition ROM, which will retain more of Xiaomi's features.

newfantasy123 said:
I saw an international version of the ZIP package coming out. OTA cannot be upgraded directly.
What should I do?
thanks.
I prefer to FLASHthe Xiaomi International Edition ROM, which will retain more of Xiaomi's features.
Click to expand...
Click to collapse
Unlock bootloader, flash twrp, flash the global zip mentioned several times in the forum. Better with EU chinese ROM as more features than global

Mackay53 said:
Unlock bootloader, flash twrp, flash the global zip mentioned several times in the forum. Better with EU chinese ROM as more features than global
Click to expand...
Click to collapse
Thank you, but I saw the EU version of the ROM, can not re-lock the bootloader, do not know if there will be anything bad.

newfantasy123 said:
Thank you, but I saw the EU version of the ROM, can not re-lock the bootloader, do not know if there will be anything bad.
Click to expand...
Click to collapse
Correct. If you try and lock the bootloader on the EU Chinese ROM or Global it's good bye phone.
If you don't unlock bootloader you'll be stuck on the Chinese ROM forever.

Mackay53 said:
Correct. If you try and lock the bootloader on the EU Chinese ROM or Global it's good bye phone.
If you don't unlock bootloader you'll be stuck on the Chinese ROM forever.
Click to expand...
Click to collapse
thank you very much.
Is there any bad things after unlocking the bootloader?

newfantasy123 said:
thank you very much.
Is there any bad things after unlocking the bootloader?
Click to expand...
Click to collapse
No. I've had an unlocked bootloader for about the last ten years.

Hi, I just purchased one mi mix 3 chinese version. I am new to unlocking bootloader and flashing TWRP . Can someone please point me to the correct thread that gives details on how to unlock boot loader and flash twrp.
Thanks in advance.

pangag said:
Hi, I just purchased one mi mix 3 chinese version. I am new to unlocking bootloader and flashing TWRP . Can someone please point me to the correct thread that gives details on how to unlock boot loader and flash twrp.
Thanks in advance.
Click to expand...
Click to collapse
Go back to the guides, news, & discussion thread

Mackay53 said:
Go back to the guides, news, & discussion thread
Click to expand...
Click to collapse
Nice Direction......

Relocking the bootloader
Question, Can I lock the bootloader after flashing the official global rom on the Chinese version? or it's also bye bye phone?

Eran baruch said:
Question, Can I lock the bootloader after flashing the official global rom on the Chinese version? or it's also bye bye phone?
Click to expand...
Click to collapse
Bye bye phone

possible use gpay with global on chinese phone with unlocked bootloader?

Why would you want to lock the bootloader?

Well?

ToneLa said:
Well?
Click to expand...
Click to collapse
Well what? If they want to lock the bootloader they can lock the bootloader.

That doesn't answer why! if it bricks the phone it might be useful to understand the process a bit fuller. I'm buying the Chinese version myself so want to be aware of why you'd want to lock the bootloader again

ToneLa said:
That doesn't answer why! if it bricks the phone it might be useful to understand the process a bit fuller. I'm buying the Chinese version myself so want to be aware of why you'd want to lock the bootloader again
Click to expand...
Click to collapse
Return to stock, to sell, improve security, warranty etc
You'll only brick it if you install and lock the global ROM on a Chinese device, Chinese rom on a global device, or lock on the Chinese EU ROM

Cool. So if I get the Chinese one I'll put the EU one on.
I don't think I'd need to worry about locking the bootloader for a long time. I want this phone to last a few years and it seems reliable enough. And the processes will improve all the time.
Thanks!

ToneLa said:
Why would you want to lock the bootloader?
Click to expand...
Click to collapse
Locking the bootloader is for certain applications and features that requires a more "secure" phone, since an unlocked bootloader is considered not "secure".
Payment Applications, Banking Applications, and DRM applications (Netflix) and such requires the phone to have a locked bootloader, or it will not work.

LiFE1688 said:
Locking the bootloader is for certain applications and features that requires a more "secure" phone, since an unlocked bootloader is considered not "secure".
Payment Applications, Banking Applications, and DRM applications (Netflix) and such requires the phone to have a locked bootloader, or it will not work.
Click to expand...
Click to collapse
Are you forgetting Magisk? I'm unlocked since surviving 72 hours of stock locked hell. All my banking apps and Google pay have worked for the past 2 months.
BTW stock Chinese or Dev or Global are garbage compared to the EU version anyways.

Question [SOLVED] Downgrade error changing region from 12.0.4.0 EEA to 12.0.8.0 Global, how can I solve?

Hi
I'm trying to install directly, from the phone update menu, from 12.0.4.0 EEA to 12.0.8.0 Global, but when I select the zip file downloaded I get an that says that it's impossible to downgrade.
My phone is actually locked.
Is it possible in other ways?
AFAIK, if I want to use Xiaomi Flash Tools, I have to unlock bootloader, it it correct?
Thanks

woody4165 said:
Hi
I'm trying to install directly, from the phone update menu, from 12.0.4.0 EEA to 12.0.8.0 Global, but when I select the zip file downloaded I get an that says that it's impossible to downgrade.
My phone is actually locked.
Is it possible in other ways?
AFAIK, if I want to use Xiaomi Flash Tools, I have to unlock bootloader, it it correct?
Thanks
Click to expand...
Click to collapse
If I understand correctly you can't change firmware region unless bootloader unlocked.
And shouldn't lock bootloader once change region.

I did't know that! This is for a friend of mine phone, with mine I normally leave bootloader unlocked and then I root with Magisk.
In this case, I want just to unlock bootloader, put global version of stock MIUI 12 and then relock bootloader.
I've just done some search and it seems that it can't be done only on chinese stock rom.
But I'm not sure 100%, so just looking to be completely sure before proceeding.
For now, I'm just waiting the 168hrs before taking step 2 of unlocking bootloader.
Thanks

I succeded using XiaomiTool V2, an unofficial app, I've used on Windows 10, but it seems to be available also on Mac.
So, without unlocking the bootloader, now I am on 12.0.8.0 Global.
I received an error at end of the ROM installation (was VERY worried), but then all was ok...
I didn't know this tool, even if I have Xiaomi phones from several years, and it's written by an Italian guy...

woody4165 said:
I succeded using XiaomiTool V2, an unofficial app, I've used on Windows 10, but it seems to be available also on Mac.
So, without unlocking the bootloader, now I am on 12.0.8.0 Global.
I received an error at end of the ROM installation (was VERY worried), but then all was ok...
I didn't know this tool, even if I have Xiaomi phones from several years, and it's written by an Italian guy...
Click to expand...
Click to collapse
After changing region, is everything working fine like the refresh rate switch and camera?

Can I flash a global version ROM to a Redmi Note 8 Pro CN version?

Hello all,
As a consequence of a recent OTA update to MIUI 12.5.2, Google Play and Google apps ceased to work on my Redmi Note 8 Pro (begonia) CN version. In order to have them back again, I am considering switching to a stock ROM for the global version of the RN8Pro.
Does this sound like a reasonable plan?
Are there hardware differences between the CN version and the global version of the RN8Pro?
Can I go ahead and flash a global version ROM over a CN version ROM?
Would this allow me to install Google Play and Google apps on the RN8Pro?
Thanks!

You can. You are not asking for impossible. But it will cost you your data as your phone will be wiped in the process.
The procedure is Unlock bootloader -> Flash Global/EEA/Indonesia/Xiaomi.eu ROM (but the guys at xiaomi.eu stopped the development of the ROM long ago, so only ancient version of MIUI is available) OR even a custom ROM (wichever you like). You will find the corresponding tutorial in this device's forum.

@kekesed97: Thanks!

After a one-week wait (Xiaomi imposes this waiting period for bootloader unlocking), I was able to unlock the bootloader and flash a stock global ROM to my RN8Pro. Everything went fine. The phone was working perfectly, with its bootloader still unlocked.
Then I fell into a trap.
After reading about things that would not work on a phone with unlocked bootloader (Google Pay, banking apps, etc.), I decided to relock the bootloader of my RN8Pro. Did that by running "fastboot oem lock" on a PC connected to the phone.
Relocking the bootloader kind of bricked the phone. The RN8Pro is now stuck in the menu for "MIUI Recovery 5.0", with the following message at the bottom of the screen:
"This MIUI version can't be installed on this device"
Is there a way out of this trap?

reverbel said:
After a one-week wait (Xiaomi imposes this waiting period for bootloader unlocking), I was able to unlock the bootloader and flash a stock global ROM to my RN8Pro. Everything went fine. The phone was working perfectly, with its bootloader still unlocked.
Then I fell into a trap.
After reading about things that would not work on a phone with unlocked bootloader (Google Pay, banking apps, etc.), I decided to relock the bootloader of my RN8Pro. Did that by running "fastboot oem lock" on a PC connected to the phone.
Relocking the bootloader kind of bricked the phone. The RN8Pro is now stuck in the menu for "MIUI Recovery 5.0", with the following message at the bottom of the screen:
"This MIUI version can't be installed on this device"
Is there a way out of this trap?
Click to expand...
Click to collapse
Some GooglePay and banking apps can be used after pass safetynet by doing something with Magisk. And you should read something about lock bootloader before doing that. China phone only can be locked with China Miui roms, by chose clean and lock on Miflashtool (best way to prevent brick). So if you want to do that, better downgrade to Miui 12.0.x to use Google apps and no more updates. And if anything else you want to be helped, join group on Telegram and get help.

Kirasu2080 said:
Some GooglePay and banking apps can be used after pass safetynet by doing something with Magisk. And you should read something about lock bootloader before doing that. China phone only can be locked with China Miui roms, by chose clean and lock on Miflashtool (best way to prevent brick). So if you want to do that, better downgrade to Miui 12.0.x to use Google apps and no more updates. And if anything else you want to be helped, join group on Telegram and get help.
Click to expand...
Click to collapse
Thanks, @Kirasu2080. Now I see that I should have flashed a MIUI 12.0.x China version ROM, rather than a global ROM.
But I still don't see how to fix things... Since phone is stuck in recovery with its bootloader locked, it appears as there is no way for me to downgrade now.

reverbel said:
Thanks, @Kirasu2080. Now I see that I should have flashed a MIUI 12.0.x China version ROM, rather than a global ROM.
But I still don't see how to fix things... Since phone is stuck in recovery with its bootloader locked, it appears as there is no way for me to downgrade now.
Click to expand...
Click to collapse
Use free unbrick hardbrick method for this. You can search Youtube videos, some solve problems, some not work, some make you lose Imei. That's why i told you join Telegram group for direct chat.

I have the global vesrsion of the Redmi note 8 pro. I want to flash the Euro version on it without unlocking the bootloader. Is this possible with the MiFlash tool?

reverbel said:
Thanks, @Kirasu2080. Now I see that I should have flashed a MIUI 12.0.x China version ROM, rather than a global ROM.
But I still don't see how to fix things... Since phone is stuck in recovery with its bootloader locked, it appears as there is no way for me to downgrade now.
Click to expand...
Click to collapse
You need to do the "EDL mode or Test point".
Lock xiaomi devices can be unbricked using that method.
Flash firmware using EDL or Test point mode. Please search in youtube.

Question Possible to go from 8 Pro + CN to EU version?

A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
I know this doesn't answer the first part of your question directly but it works the other way. I have installed CN on my EU model. Interesting that there's a few extra settings in the CN such as updating the GPU directly.
I'm on the latest CN firmware V2.26 and the battery is much better but probably due to all the battery saving default settings.

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
Yes, you can change the payload_properties.txt in the rom of the region you want to flash. Change the text "nx729j_un" or "nx729j_**" for " NUBIA_SUBVERSION to "nx729j". Put the modified rom in the root directory and use local update. You do not have to unlock the bootloader to do this. If this does not work then you have to unlock the bootloader and flash the recovery of the rom in the region you want to change to and use sideload to flash the rom. However the second method might mess up your phone and you might not be able to boot your phone.

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
nfc isnt working anymore after i try this on my UN (eu/un) phone

Ultimatum99 said:
A bit sick of the UI but worried that since the 8 Pro + version is not available in Europe there may be issues. Is there anyone who tried this? Is it possible to install stock firmware from another region?
Click to expand...
Click to collapse
yes possible: https://romprovider.com/red-magic-8-pro-nx729j-convert-global/

does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)

leequan2009 said:
does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)
Click to expand...
Click to collapse
for me works rm7 pro variant. reboot is also helpful in some cases. you need to try and try

leequan2009 said:
does any guide for RedMagic 8Pro from Global to CN rom? (I couldnot flash at Local Update in Setting)
Click to expand...
Click to collapse
In the payload_properties.txt, change the text "nx729j_un" for " NUBIA_SUBVERSION to "nx729j". Put the modified rom in the root directory and use local update. You do not have to unlock the bootloader to do this. If this does not work then you have to unlock the bootloader by go to bootloader and in the command window type
fastboot flashing unlock
Follow the direction to unlock the phone
You need to extract the payload.bin from the CN rom, then use payload dumper or fastboot enhance to extract recovery.img from the payload.bin. Go to bootloader and flash the recovery of the CN rom (fastboot flash recovery recovery.img)
Then reboot to recovery, choose English when you see "Wipe data" type
adb reboot sideload
Once your phone boots into sideload mode (When you see the two error line at the bottom of the screen) type
adb sideload NX729J-update.zip (this is the CN rom you want to flash)
Whether the transfer is successful or not you can wipe the data and reboot the phone. If the transfer is successful you will be in the CN rom, if not you should be back to your own Global rom. The sideload will load the new rom to the other slot so it should not change the current slot.

I'm terms of unlocking the bootloader all I have to do is go into fastboot mode (with OEM unlock, USB debugger selected on the phone of course) and type in the "fastboot flashing unlock" command and whatever next steps I'm supposed to do? Also I have not set fingerprint and or security pin on this phone yet and I've read that people are having issues with them after unlocking bootloader. Is your bootloader unlocked? If so are you having pin/fingerprint issues and if not was there anything you need to do to avoid the issue when unlocking the bootloader? TY!