Flashing firmware query - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Is it mandatory to unlock bootloader in order to say flash a EU firmware on a China firmware phone? I ask only because I've read a few guides in order to install custom roms which obviously need a bootloader unlock, but wondering like I said if it's required to just flash a different firmware, thanks in advance.

Yes, you must open your bootloader and keep it unlocked.

Angelina7 said:
Yes, you must open your bootloader and keep it unlocked.
Click to expand...
Click to collapse
Urgh I was hoping I could avoid that but it is what it is

Related

[Q] Rooting issues - 4.3, IMEI, not actually rooted etc....

Hi All
So firstly I should say I only have myself to blame. I'm quite a techy guy so I just assumed i'd be able to root my phone without any issues and pick it up as I go. What i've quickly found out is i'm in way over my head and i'm an absolute noob!
Any advice would be greatly appreciated from those guys out there that actually know what they are doing. I have read many forums but i'm still lost.
My story is as follows:
- I have a Z1 that was locked on stock firmware 4.4
- I read that it would be a good idea to unlock the bootloader so i did this
- I wanted to root my phone but from what I read I could see I would have to downgrade the firmware to 4.2. So this is what i did.
- By doing this I lost my IMEI number, got very worried i'd ruined my phone. I tried many things to restore it, there were a variety of different solutions online, none of them worked. I eventually flashed a 4.3 firmware i found on this forum which restored my IMEI.
- I then read through a few posts of people who had similar issues and advice was given to downgrade again (if i wanted to root) but this time exclude the baseband etc. I did this, but lost my IMEI again! the advice didn't work
- So I then went and updgraded again! to 4.3 to restore my IMEI and network access
- There doesn't seem to be a way to root on 4.3 so my phone isn't rooted, that's ok. But when i try to use my banking apps they don't work! they say my phone is rooted even though it isn't! I have checked with root checker
- Like an idiot, i didn't back up the phone when i first started doing all of this, i didn't really know what i was doing so I am now in a situation where i have the worst of both worlds. They are, i can either 1. downgrade the firmware to 4.2, root my phone but not have a valid IMEI and network access or 2. stay on 4.3, have a valid IMEI and not be rooted but certain apps think i'm rooted so i can't use them.
So all in all i've just messed things up and i'm in way over my head. I would really appreciate some advice
Thanks
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
6317
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again
retro100386 said:
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again
Click to expand...
Click to collapse
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.
eclyptos said:
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.
Click to expand...
Click to collapse
The video by shem is for locked bootloaders, he needs an unlocked bootloader method
gregbradley said:
The video by shem is for locked bootloaders, he needs an unlocked bootloader method
Click to expand...
Click to collapse
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...
eclyptos said:
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...
Click to expand...
Click to collapse
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.
gregbradley said:
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.
Click to expand...
Click to collapse
I know but as you see the users still do mistake anyway, even if there is a lot of vids with a clear explanation.
conflicting messages?
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks
retro100386 said:
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks
Click to expand...
Click to collapse
Hi Greg
it's fine, i am just being stupid again, i just relocked without a problem, thanks again
http://www.lifehacker.com.au/2014/0...oid-kitkat-devices-in-one-tap-no-pc-required/
check this out

Getting my device in few days need help

Guys getting my device in few days need some help
How can I install Google store iam little nervous to root this device
Is that safe to use default rom?
yajur said:
Guys getting my device in few days need some help
How can I install Google store iam little nervous to root this device
Is that safe to use default rom?
Click to expand...
Click to collapse
Chances are Google will come pre-installed, problem is with vendor rom as well just follow the guides (in the guide section, you don't have to root if you flash genuine Chinese ROM don't even need TWRP. If you want EU ROM then TWRP is needed but not root, need to flash dm-verify before first boot if you don't root. If you go Chinese ROM can get Google from mi store.
Hi,
Your device should come with a Vendor ROM pre-installed which already has all the Google apps built in.
Its okay to use the vendor ROM if you dont mind not getting any updates. Just check with Malwarebytes to see if there is any malware. Malwarebytes flagged the default MIUI Notes app as a downloader trojan for me and a few others.
I personally wouldnt advice being on the Vendor ROM but thats just my opinion.
Anyway, as you wait for your phone to arrive, you can try applying for an Unlock code using the guide posted by underlines.
I would recommend switching to the EU ROM as it is a very clean and stable ROM with no bloatware. You can also refer to the guide I've posted if you wish to switch to the EU ROM from a Vendor ROM.
Its simple and as long as you follow the steps, you shouldn't face any issues.
Thanks guy I keep you posted.
How can you check if boot loader is unlock already
cheapshot789 said:
How can you check if boot loader is unlock already
Click to expand...
Click to collapse
fastboot OEM device-info
Boot your phone in fastboot mode and from command prompt type the above, assuming you have adb and fastboot installed on PC
guys got my device
How to find my rom in vendor rom or official rom ?
in the model number i can able to see MIUI global stable 8.0.8.0.0(MAHCNDI)
yajur said:
guys got my device
How to find my rom in vendor rom or official rom ?
in the model number i can able to see MIUI global stable 8.0.8.0.0(MAHCNDI)
Click to expand...
Click to collapse
You have a Vendor ROM on the device. Follow one of the guides and flash a ROM of your choice!
As long as you follow all the steps carefully, you shouldn't face any issues.
satishp said:
You have a Vendor ROM on the device. Follow one of the guides and flash a ROM of your choice!
As long as you follow all the steps carefully, you shouldn't face any issues.
Click to expand...
Click to collapse
Thanks for the reply
I applied for bootloader unlocking and it possible to flash official rom with bootloader locked?
yajur said:
Thanks for the reply
I applied for bootloader unlocking and it possible to flash official rom with bootloader locked?
Click to expand...
Click to collapse
Did you check whether bootloader is locked? There is a possibility that it is already unlocked.
And yes, you can flash official ROM via fastboot mode even if your bootloader is locked but it requires a special flash cable. Another way is to flash via EDL mode which bypasses a locked bootloader but this is a risky process and is usually only recommended as a last resort. Anyway none of the official ROMS have GAPPS built-in so I'd suggest its best you wait till you get the unlock code if your device isnt already unlocled.
satishp said:
Did you check whether bootloader is locked? There is a possibility that it is already unlocked.
And yes, you can flash official ROM via fastboot mode even if your bootloader is locked but it requires a special flash cable. Another way is to flash via EDL mode which bypasses a locked bootloader but this is a risky process and is usually only recommended as a last resort. Anyway none of the official ROMS have GAPPS built-in so I'd suggest its best you wait till you get the unlock code if your device isnt already unlocled.
Click to expand...
Click to collapse
oem device-info came fales only i already requested for unlocking i think i have to wait only.

replace russian rom official with global rom official

i bought a mi 9 lite and it came with the russian rom.
I wanted to unlock the bootloader and install the official globlal ROM with mi flash. can i lock the bootloader again with me flash when i install an official global rom?
or
is there a guide to install a global rom without unlocking the bootloader? and without using tools?
You need to first unlock your bootloader in order to fastboot flash the global rom (using MiFlash). After that in the MiFlash tool there is an option to "Flash all and lock" which will lock your bootloader again. Unfortunately there is not a way of doing it to my knowledge without unlocking your bootloader.
Here's the official guide here: https://c.mi.com/oc/miuidownload/detail?guide=2
Never, ever re-lock your bootloader as this will result in a hard brick that can only be resolved with EDL/authorized account!
Diabolik2770 said:
i bought a mi 9 lite and it came with the russian rom.
I wanted to unlock the bootloader and install the official globlal ROM with mi flash. can i lock the bootloader again with me flash when i install an official global rom?
or
is there a guide to install a global rom without unlocking the bootloader? and without using tools?
Click to expand...
Click to collapse
Your post is in the wrong section, this should be in guide, news, discussion
.M.D. said:
Never, ever re-lock your bootloader as this will result in a hard brick that can only be resolved with EDL/authorized account!
Click to expand...
Click to collapse
Not to my knowledge. I have done it before with my device. Sure if you want to use custom roms/recoveries you will need to unlock your bootloader again which you can do if you are using an authorised account. However, if you are really worried about this happening, you might as well just keep your bootloader unlocked.
I bought a mi cc9 lite that came with a russian rom.
Before i could unlock my device, i was able to flash a global rom with a non official tool which name i can't remember.
Global rom was the only one i was able to flash. So yes it's possible.
ok
On which ROM and Device you CAN and CAN'T Lock Bootloader!
Echo2124 said:
Not to my knowledge. I have done it before with my device. Sure if you want to use custom roms/recoveries you will need to unlock your bootloader again which you can do if you are using an authorised account. However, if you are really worried about this happening, you might as well just keep your bootloader unlocked.
Click to expand...
Click to collapse
I found this ....
https://c.mi.com/thread-2584760-1-1.html
I think you're right

Question Relock the bootloader and brick ?

I'don't want to brick my phone and i just want to be sure : if i unlock my phone with 12.0.1.0.RKBEUOR and flash it with V12.0.3.0.RKBEUXM, can i re-lock the bootloader or i'will brick my phone ?
Pikaone41 said:
I'don't want to brick my phone and i just want to be sure : if i unlock my phone with 12.0.1.0.RKBEUOR and flash it with V12.0.3.0.RKBEUXM, can i re-lock the bootloader or i'will brick my phone ?
Click to expand...
Click to collapse
What is RKBEUOR? Orange in Great Britain?
pittrich said:
What is RKBEUOR? Orange in Great Britain?
Click to expand...
Click to collapse
no orange france
Pikaone41 said:
no orange france
Click to expand...
Click to collapse
I think the most important acronym in the firmware. EU. Flashing the RKBEUXM should therefore not be a problem. Even without the bootloader unlock. OR only means that provider-specific functions are built in. If you don't know them or are unimportant, the XM works just as well.
pittrich said:
I think the most important acronym in the firmware. EU. Flashing the RKBEUXM should therefore not be a problem. Even without the bootloader unlock. OR only means that provider-specific functions are built in. If you don't know them or are unimportant, the XM works just as well.
Click to expand...
Click to collapse
You think i can flash the rom without unlock my phone because it's the same base ( EU ). i must use flash_all.bat ?
Try this tool.
XiaoMiTool V2 - Modding of Xiaomi devices made easy for everyone
XiaoMiTool V2 is a easy to use tool to install rom on your Xiaomi device. Modding made easy for everyone! Download it for free now!
www.xiaomitool.com
Connect the mobile phone to the PC, start the tool. It checks your cell phone and offers you a compatible ROM.
So I flash all Xiaomi with the bootloader closed.
pittrich said:
Try this tool.
XiaoMiTool V2 - Modding of Xiaomi devices made easy for everyone
XiaoMiTool V2 is a easy to use tool to install rom on your Xiaomi device. Modding made easy for everyone! Download it for free now!
www.xiaomitool.com
Connect the mobile phone to the PC, start the tool. It checks your cell phone and offers you a compatible ROM.
So I flash all Xiaomi with the bootloader closed.
Click to expand...
Click to collapse
xiaomi tool says i must unlock my bootloader to flash the XM version, no problem still 50hrs and it will be unlocked. the most important things to me is to re-lock after this. i'll try "flash all lock.bat" and pray to dont brick my phone.
Pikaone41 said:
xiaomi tool says i must unlock my bootloader to flash the XM version, no problem still 50hrs and it will be unlocked. the most important things to me is to re-lock after this. i'll try "flash all lock.bat" and pray to dont brick my phone.
Click to expand...
Click to collapse
If you had to unlock the bootloader to flash the XM, I wouldn't relock again. That would surely lead to a brick.
Pikaone41 said:
xiaomi tool says i must unlock my bootloader to flash the XM version, no problem still 50hrs and it will be unlocked. the most important things to me is to re-lock after this. i'll try "flash all lock.bat" and pray to dont brick my phone.
Click to expand...
Click to collapse
If you had to unlock the bootloader to flash the XM, I wouldn't relock again. That would surely lead to a brick.
Hi, do have imei repair this phone now ?
sefai77 said:
Hi, do have imei repair this phone now ?
Click to expand...
Click to collapse
what do you mean ?
Pikaone41 said:
what do you mean ?
Click to expand...
Click to collapse
i mean can i change imei, do you know this ?
sefai77 said:
i mean can i change imei, do you know this ?
Click to expand...
Click to collapse
No, i don't know for this phone, the last time i change an imei was on galaxy s2 ....
Pikaone41 said:
No, i don't know for this phone, the last time i change an imei was on galaxy s2 ....
Click to expand...
Click to collapse
ohh very last time thanks for answer
It's done ! I unlock my bootloader, flash 12.03.0 rkbeuxm and relock my bootloader successfully ! Adios orange rom !
thanks to all who help me.
Pikaone41 said:
It's done ! I unlock my bootloader, flash 12.03.0 rkbeuxm and relock my bootloader successfully ! Adios orange rom !
thanks to all who help me.
Click to expand...
Click to collapse
Hello! Can you tell me what method you used to do it? I have a Mi 11 lite 5G, the ROM that came from the factory was a Vodafone EU and I changed it for a Global EU ROM, specifically this one: renoir_eea_global_images_V12.0.8.0.RKIEUXM, but in the process with My Flash Tool the bootloader had to be open, now I have this ROM working perfectly, but I want to close the bootloader to use Google Pay etc. So I am very interested in your method to achieve it.
janderklander75 said:
Hello! Can you tell me what method you used to do it? I have a Mi 11 lite 5G, the ROM that came from the factory was a Vodafone EU and I changed it for a Global EU ROM, specifically this one: renoir_eea_global_images_V12.0.8.0.RKIEUXM, but in the process with My Flash Tool the bootloader had to be open, now I have this ROM working perfectly, but I want to close the bootloader to use Google Pay etc. So I am very interested in your method to achieve it.
Click to expand...
Click to collapse
With ADB : fastboot oem lock, but your phone will be wiped
Pikaone41 said:
With ADB : fastboot oem lock, but your phone will be wiped
Click to expand...
Click to collapse
OK, thank you very much, I will try
I just got the mi 11 chinese version and have to wait for bootloader to unlock , I plan to flash the stock EU ROM via Fast Boot and worried banking / g pay etc wont work ?
Don't relock your bootloader with EU rom. Your chinese phone will be bricked.

Is there a way to unlock bootloader from SP Flash Tool?

My phone was hardbricked and thinking I had a global device I flashed a global ROM to it, but now it can't boot saying "This Miui version can't be installed on this device". I read that this error comes up from having a locked bootloader.. So is there a way to unlock it from Sp Flash or something similar (would prefer if it weren't fastboot).
Nuythe said:
comes up from having a locked bootloader
Click to expand...
Click to collapse
While it could come from a locked bootloader, you would know if your bootloader had relocked from the tool and account you originally used to unlock it.
This Miui version can't be installed on this device
Click to expand...
Click to collapse
could be caused through by several things including, perhaps, non-allowed downgrade of MIUI

Categories

Resources