Please HELP: accidentally wiped system & vendor, and locked bootloader - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Is there any way to flash stock ROM with a locked bootloader ?
When i try to unlock bootloader with Mi Unlock, it is asking me to unlock some setting in the Mi app in the phone, which i cannot because the phone is wiped.
:crying:

I'm assuming you're not telling some details regarding this but for your question, you can't normally flash rom with locked bootloader. You'll need authorized account and flash in edl mode.
Mi 9T Pro ll Tapatalk

mato200 said:
Is there any way to flash stock ROM with a locked bootloader ?
When i try to unlock bootloader with Mi Unlock, it is asking me to unlock some setting in the Mi app in the phone, which i cannot because the phone is wiped.
:crying:
Click to expand...
Click to collapse
Do you have TWRP?
If yes, just flash stock rom and flash stock recovery ?

I am pretty sure if your bootloader is locked then you are on stock rom and recovery.

Related

Get back to stock an relock bootloader

Hi all,
I have a Mi 9 europe version and want to get back to stock.
The current status of my device is:
- Bootloader unlocked
- TWRP
- flashed GSI FlokoRom
Can I just put the phone into fastboot mode and flash (10.2.24.0 PFAEUXM from there) with MI flash tool as mentioned there? Is it possible to relock the bootloader after this or will it brick my device?
I recommend you to flash rom WITHOUT LOCKING at first time. Even if something is wrong you should be able to flash twrp and then flash any rom.
But if after flashing your ohone boot up normally, flash it again and tick LOCK BOOTLOADER. Simple and secure way to get stock phone.

Bootloop after unlocking bootloader

Hello, owner of a Xiaomi Mi A2 running the June update.
I recently unlocked the bootloader through "fastboot oem unlock" command. Ever since I am stuck in bootloop. I have managed to boot in TWRP using a specific img for the device, but I am not sure how to proceed. Is it possible to install a stock rom and start all over?
thymiosK said:
Hello, owner of a Xiaomi Mi A2 running the June update.
I recently unlocked the bootloader through "fastboot oem unlock" command. Ever since I am stuck in bootloop. I have managed to boot in TWRP using a specific img for the device, but I am not sure how to proceed. Is it possible to install a stock rom and start all over?
Click to expand...
Click to collapse
https://forum.xda-developers.com/mi-a2/help/strange-issue-mi-a2-t3945125
thymiosK said:
Hello, owner of a Xiaomi Mi A2 running the June update.
I recently unlocked the bootloader through "fastboot oem unlock" command. Ever since I am stuck in bootloop. I have managed to boot in TWRP using a specific img for the device, but I am not sure how to proceed. Is it possible to install a stock rom and start all over?
Click to expand...
Click to collapse
You should read this flashing guide first and then proceed further...
https://forum.xda-developers.com/mi-a2/how-to/guide-how-to-flash-custom-roms-stuff-t3876375
There is a link of how to unlock bootloader properly in the same thread so read that too... I think you missed the flashing unlock critical part during unlock bootloader process so if you are still in stock then do it first so that you can able to flash stock later or else it would be difficult for you to flash back stock..
Since I was able to get int fastboot I tried countless times locking and unlocking bootloader. After numerous retries I have also managed to install a stock rom I found online using the TWRP. And it did work. I got my phone back to working. Thank you anway.

How do I relock the bootloader and go stock?

Hi XDA.
I was curious to find out is it possible to flash stock rom back on the device and relock the bootloader without bricking the device.
The EDL method seems like a pain..
The model is Raphaelin.
Flashed chinese 10.3.16.0, wiped system, flashed HAVOC, formatted data, wiped, booted. Everything works fine.
My questions are...
If and can i flash the EU rom and lock bootloader? Maybe through MiFlash.
Or
If and how can I flash the indian global rom and lock the bootloader after that?
Thanks guys!
Raphaelin means Indian ROM? If, you cant lock bootloader after flash different region ROM. If you lock bootloader after flash CN MI or RU type ROM, your device will boot lop means brick. You have to flash IN (india) official ROM to relock bootloader.
Download Indian Global Fastboot ROM and flash by XiaoMiFlash software.
http://bigota.d.miui.com/V10.3.5.0....INGlobal_V10.3.5.0.PFKINXM_f924323a4b_9.0.zip
https://androidfilehost.com/?fid=11410963190603913551
https://mega.nz/#!HAhjTSzR!m10q_1q2Q4CL3sAYtF_78OdgtxdlJ4BrmwVxfNzNAfc
aman2125 said:
Hi XDA.
I was curious to find out is it possible to flash stock rom back on the device and relock the bootloader without bricking the device.
The EDL method seems like a pain..
The model is Raphaelin.
Flashed chinese 10.3.16.0, wiped system, flashed HAVOC, formatted data, wiped, booted. Everything works fine.
My questions are...
If and can i flash the EU rom and lock bootloader? Maybe through MiFlash.
Or
If and how can I flash the indian global rom and lock the bootloader after that?
Thanks guys!
Click to expand...
Click to collapse
You can only lock the bootloader with the ROM from the same region as the phone. In your case you can only lock the bootloader when flashing an official Indian fastboot ROM. If you try to lock the bootloader flashing any other ROM you will hard brick the phone. This can only be done when flashing the official fastboot ROM with the Mi Flash Tool.
Robbo.5000 said:
You can only lock the bootloader with the ROM from the same region as the phone. In your case you can only lock the bootloader when flashing an official Indian fastboot ROM. If you try to lock the bootloader flashing any other ROM you will hard brick the phone. This can only be done when flashing the official fastboot ROM with the Mi Flash Tool.
Click to expand...
Click to collapse
Okk.. Thanks a lot!!!
Won't dare try anything stupid..
I have the Chinese version of k20pro and now I'm running the eu version of rom that is saying that my redmi is a 9t pro.
I also tried to lock the bootloader with this rom, but the phone got stuck on bootloop.
I thought that my phone is bricked, as no unlocked bootloader, there is no possibility to install the twrp and mi flash gave me an error. Luckily I put the phone in fastboot mode and run again the process of unlocking the bootloader and worked for me.
I would like to give it another try, but when I will have more time to read what other steps are needed and not to end up with a bricked device, especially that I enjoy this phone a lot.
degeaba1981 said:
I have the Chinese version of k20pro and now I'm running the eu version of rom that is saying that my redmi is a 9t pro.
I also tried to lock the bootloader with this rom, but the phone got stuck on bootloop.
I thought that my phone is bricked, as no unlocked bootloader, there is no possibility to install the twrp and mi flash gave me an error. Luckily I put the phone in fastboot mode and run again the process of unlocking the bootloader and worked for me.
I would like to give it another try, but when I will have more time to read what other steps are needed and not to end up with a bricked device, especially that I enjoy this phone a lot.
Click to expand...
Click to collapse
You can not lock the bootloader again if you have any ROM that is not for the same region as your phone. With a Chinese phone, this means you can only lock the bootloader when installing Chinese MIUI.
You were lucky you had already unlocked the phone before and so had unlock permission on your Mi account. Many others have bought phones with the bootloader already unlocked, then done the same as you. Because they could not then unlock the bootloader, they have ended up with a hard bricked device, which needed flashing with an authorised service account.
How to Re-lock bootloader
Hi... I'm on stock rom Raphaelin v11. 0.4.0 global stable and my bootloader is unlocked. While using mantra RDservice app, it gives an error of rooted device. My device isn't rooted and every payment app runs fine. So I want to try locking bootloader to see if it works.

Question How to go back to stock

Hello
How I can go back to stock rom? Can you help me please?
assuming you're on a custom rom, i'd flash fastboot stock rom via mi flash tool and backup the data before flashing.
Thanks
sbsmbm said:
assuming you're on a custom rom, i'd flash fastboot stock rom via mi flash tool and backup the data before flashing.
Click to expand...
Click to collapse
Will the bootloader be still unlocked, If i flash back to stock using mi flash tool?
GalibBD said:
Will the bootloader be still unlocked, If i flash back to stock using mi flash tool?
Click to expand...
Click to collapse
While flashing the fastboot Rom, there is an option to lock or keep it unlocked.
Just flash stock recovery rom via twrp if you want still unlock your bootloader, more simple

Question 12 Pro Bootloop - bricked?

Hi everyone,
I'm afraid that my 12 Pro commited suicide... :/
It's pretty new, only 2 weeks old now. I was using it with the latest Xiaomi.eu ROM a did not have any problems - tilll yesterday.
Out of nowhere it started lagging and crashed during normal use. After the reboot it seemed to be fine again.
But in the following hours it crashed several times and rebooted by itself. Even while sitting on the table with screen off.
Finally it ended in a bootloop.
What I've tried so far:
- reflash Xiaomi.eu ROM without wiping data
- reflash Xiaomi.eu ROM with data wipe
- reflash Global ROM with the Mi Flash Tool and "clean all"
- reflash Global ROM with the Mi Tool, "clean all" and Relock Bootloader
- factory reset in stock recovery
- start without inserted SIM card
What is working:
Fastboot
Recovery Mode (and ADB sideload using the Mi Tool option in recovery mode)
Unlocking the BL using the official Xiaomi Unlock tool
Occasionally it boots into system but crashes afer a short time, so I'm not eben able to complete the setup assistant.
Most of the time it just hangs at the boot screen (the one with the Mi Logo, "Powered by Android" text and open lock at the top).
Any suggestions how to bring it back to life?
Pio
It sounds like hardware problems.
Flash it back to the original rom that came with the phone.
Then check if the problem occurs again or not.
When not than it is a problem with the EU rom, and when it has the same problem it probably is an hardware issue.
Unlock bootloader again.
Flash with full Chineese ROM (i assume that yours is a Chinese edition) with the option bootloader relock selected.
Please note, you are good to flash Global ROM on the top of any Chinese ROM including xiaomi.eu ROM. But do not choose relocking because it will brick your phone permanently.
Avoid your step,
"- reflash Global ROM with the Mi Tool, "clean all" and Relock Bootloader"
smohanv said:
Unlock bootloader again.
Flash with full Chineese ROM (i assume that yours is a Chinese edition) with the option bootloader relock selected.
Please note, you are good to flash Global ROM on the top of any Chinese ROM including xiaomi.eu ROM. But do not choose relocking because it will brick your phone permanently.
Avoid your step,
"- reflash Global ROM with the Mi Tool, "clean all" and Relock Bootloader"
Click to expand...
Click to collapse
Nope, I have the Global Edition.
So flashing the Chinese Rom and locking the BL is probably not the best idea
The device is at the service center at the moment, let's hope it won't take too long.
Worst out of worst, I can perform soldering and replace the nand chip of the device to recover it
I got my 12 Pro back und it's running fine so far.
Have had some random reboots in the past but they seem to be gone since the .18 update
Hi
That's exactly what I did. Is there any way to fix it?
Avoid your step, "- reflash Global ROM with the Mi Tool, "clean all" and Relock Bootloader"
smohanv said:
Unlock bootloader again.
Flash with full Chineese ROM (i assume that yours is a Chinese edition) with the option bootloader relock selected.
Please note, you are good to flash Global ROM on the top of any Chinese ROM including xiaomi.eu ROM. But do not choose relocking because it will brick your phone permanently.
Avoid your step,
"- reflash Global ROM with the Mi Tool, "clean all" and Relock Bootloader"
Click to expand...
Click to collapse
That's exactly what I did. Is there any way to fix it?
What a situation?
You have locked the bootloader on a CN version with a Global rom or vice versa?
NOSS8 said:
That's exactly what I did. Is there any way to fix it?
What a situation?
You have locked the bootloader on a CN version with a Global rom or vice versa?
Click to expand...
Click to collapse
I opened the bootloader and uploaded the global rom to Chinese. I locked the bootloader. I got into a loop. Now I can't open the bootloader to load the new firmware

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