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 have a problem and question with china rom miui 9 :(

hello everyone I am using mi5s really want to learn and find a solution my question is 3 days ago I flashed the mi capricorn_images_7.8.24_20170824.0000.00_7.0_cn_22c026885a beta rom to my phone but my problem is I am from Turkey and I need a global rom the problem is I flashed the rom to my phone without opening bootloader , and I tried to flash global beta rom after that but I couldnt I have tried a lot of way to but I couldnt and really dont want to open bootloader because its just 2 month that I bought mis5s and if I open it my guarantee will gone is there any solution for me or I have to open bootloader pls help me

I dont think unlocking bootloader voids warranty if u did it officially. Or you can just relock it easily.

geri kilitliyebilirsin

You can use the unlock tool to unlock the bootloader lock, unlock the en.miui.com application, and then you can use the miflash brush

Miui 9 Global developer rom has been release, just download and install via updater. No need unlock bootloader

So I am f*cked up.

Hi guys,
I am rolling MIUI 12 Chinese beta 20.5.11 and my bootloader seems to be somehow locked. It is very strange because I flashed the ROM and Magisk from TWRP and it all worked. Now yesterday I went to developer options and saw that the phone says it's locked. I tried to open with MiFlash-Unlock and it said "Device bootloader is unlocked, no need to re-unlock."
Please help me what should I do? Am I able to flash at least MIUI 11 with MTK FLash or MiFlash without bricking my phone?

for me too, but i flasher miui11 with miflash and all work good! the bootloader is unlocked maybe it's a bugs of miui 12

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 How to Re-Lock bootloader?

Hi guys since I might sell and upgrade my device, I just wanna know how do I re-lock my Poco F3 bootloader. It is safe to re-lock the bootloader in the Mi flash tool(clean and lock)? I've seen many people that they bricked their device with clean and lock option on mi flash tool, should I re-lock my device through fastboot mode + CMD? Please enlighten me, thank youuu.

PsychoMad said:
Hi guys since I might sell and upgrade my device, I just wanna know how do I re-lock my Poco F3 bootloader. It is safe to re-lock the bootloader in the Mi flash tool(clean and lock)? I've seen many people that they bricked their device with clean and lock option on mi flash tool, should I re-lock my device through fastboot mode + CMD? Please enlighten me, thank youuu.
Click to expand...
Click to collapse
dude just flash your region's rom eg ur region is Europe then download the latest fastboot rom and flash in mi flash tool by selecting clean all and lock
People Bricked their devices because they might have flash a diffrent region's rom Example im having mi 11x (indian) and i flash redmi k40s china rom and lock my bootloader then my phone will get bricked ( it happened to me once accidently pressed clean all and lock while flashing china rom to my phone and later go to know my bootloader was locked and i bricked my phone )
Bad english Ig

TeckySairam said:
dude just flash your region's rom eg ur region is Europe then download the latest fastboot rom and flash in mi flash tool by selecting clean all and lock
People Bricked their devices because they might have flash a diffrent region's rom Example im having mi 11x (indian) and i flash redmi k40s china rom and lock my bootloader then my phone will get bricked ( it happened to me once accidently pressed clean all and lock while flashing china rom to my phone and later go to know my bootloader was locked and i bricked my phone )
Bad english Ig
Click to expand...
Click to collapse
That's what I thought too, they might flash wrong region firmware on their devices and ended up bricking their devices, but how did you fix your device? Did you just flash through mi flash tool the correct firmware region in to your device? or did you get EDL something?

PsychoMad said:
That's what I thought too, they might flash wrong region firmware on their devices and ended up bricking their devices, but how did you fix your device? Did you just flash through mi flash tool the correct firmware region in to your device? or did you get EDL something?
Click to expand...
Click to collapse
i just flash the proper mi 11x indian firmware through mi flash tool and relocked my bootlaoder