A couple of questions... - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Hi guys,
My friend bought a Redmi K20 Pro Premium Edition from China for me and I would like to flash a Global ROM on it. I don't need root or TWRP, so I presume I don't need to unlock the bootloader.
The current Chinese ROM installed on the phone is v10.4.4, but the latest stable Global is v10.3.5. Would flashing v10.3.5 Global brick the phone?
And would flashing the MI 9T Global ROM work as well, considering it's essentially the same phone?

chaoscreater said:
Hi guys,
My friend bought a Redmi K20 Pro Premium Edition from China for me and I would like to flash a Global ROM on it. I don't need root or TWRP, so I presume I don't need to unlock the bootloader.
The current Chinese ROM installed on the phone is v10.4.4, but the latest stable Global is v10.3.5. Would flashing v10.3.5 Global brick the phone?
And would flashing the MI 9T Global ROM work as well, considering it's essentially the same phone?
Click to expand...
Click to collapse
afaik u must unlock bootloader to install other rom than k20 pro premium rom itself.
k20 pro premium is only available in china, so any global rom means it doesn't build specifically for pro premium.
The only official rom for k20 premium is Chinese ROM, all Global rom is modified version of K20 Pro/Mi 9t Pro.

zephyruel said:
afaik u must unlock bootloader to install other rom than k20 pro premium rom itself.
k20 pro premium is only available in china, so any global rom means it doesn't build specifically for pro premium.
The only official rom for k20 premium is Chinese ROM, all Global rom is modified version of K20 Pro/Mi 9t Pro.
Click to expand...
Click to collapse
Thanks for your reply.
I wasn't thinking of installing custom roms, I was referring to official stock ROMs. Apparently, you can just install the latest K20 Pro Indian Stable on the Premium Edition:
https://c.mi.com/thread-2541738-1-1.html
Would that work?

chaoscreater said:
Thanks for your reply.
I wasn't thinking of installing custom roms, I was referring to official stock ROMs. Apparently, you can just install the latest K20 Pro Indian Stable on the Premium Edition:
https://c.mi.com/thread-2541738-1-1.html
Would that work?
Click to expand...
Click to collapse
You will need to unlock the bootloader.
To flash an official ROM, but for a different region that the phone is from then you need to unlock the bootloader in order to flash a fastboot ROM.
It is not possible to flash a fastboot ROM without unlocking the bootloader

chaoscreater said:
Thanks for your reply.
I wasn't thinking of installing custom roms, I was referring to official stock ROMs. Apparently, you can just install the latest K20 Pro Indian Stable on the Premium Edition:
https://c.mi.com/thread-2541738-1-1.html
Would that work?
Click to expand...
Click to collapse
should work, but even fastboot flash using miflash need to unlock bootloader first(?).

yup sorry, I forgot you still need to unlock bootloader for fastboot to work. I know what to do now, thanks everyone!

also if flashing different region rom, never relock bootloader again, even if it was official rom.

Yup, I read that it'll brick your device if you select clean data and lock bootloader. Have noted this and thanks again for the confirmation / reminder.

You will need to unlock for sure.
It doesn't work like that
Maybe flash xiaomieu rom if u want full experience

OK, waited 168 hours and have unlocked successfully today. When I tried to flash via MiFlash, it says "mismatch image and device". I'm sure I read that the Redmi K20 PRO India fastboot ROM will work on a K20 PRO Premium Edition, so not sure why I can't flash it...
I also found a Android 9.0 fastboot ROM for K20 Premium here:
https://xiaomifirmwareupdater.com/miui/raphaels/
My phone is already on Android 10 MIUI 11. Will flashing an older version brick the device? I read somewhere ages ago that Android or MIUI doesn't allow downgrade?

chaoscreater said:
OK, waited 168 hours and have unlocked successfully today. When I tried to flash via MiFlash, it says "mismatch image and device". I'm sure I read that the Redmi K20 PRO India fastboot ROM will work on a K20 PRO Premium Edition, so not sure why I can't flash it...
I also found a Android 9.0 fastboot ROM for K20 Premium here:
https://xiaomifirmwareupdater.com/miui/raphaels/
My phone is already on Android 10 MIUI 11. Will flashing an older version brick the device? I read somewhere ages ago that Android or MIUI doesn't allow downgrade?
Click to expand...
Click to collapse
There is no anti-rollback protection for this phone (I assume this is also true for premium edition), so you should be OK to flash an earlier Android 9 ROM.

Robbo.5000 said:
There is no anti-rollback protection for this phone (I assume this is also true for premium edition), so you should be OK to flash an earlier Android 9 ROM.
Click to expand...
Click to collapse
Thanks! I can also confirm that there is no ABP, as I've verified it using this guide here:
https://www.xda-developers.com/xiaomi-anti-rollback-protection-brick-phone/
I was able to flash the fastboot ROM, but turns out it's just an Chinese stable, not Global or India Global rom. I don't know why I can't fastboot flash the Global ROM though. The Chinese fastboot ROM has the name "PFKCNXM" in it. So I'm guessing that if I find a fastboot ROM that is similar to that, it should work. I'm currently testing out the following:
- PFKMIXM
- PFKINXM
Download links here:
https://xiaomifirmwareupdater.com/archive/miui/raphael/
https://xiaomifirmwareupdater.com/archive/miui/raphaelin/
Neither QFKMIXM or QFKINXM worked for me, so I hope one of the above will work.
update: got this working. I first flashed this:
raphaelin_in_global_images_V10.3.5.0.PFKINXM_20190816.0000.00_9.0_in
And now I can flash both QFKMIXM (9.0) or QFKINXM (10.0)

As someone mentioned in a previous reply, NFC is missing in the Global ROM. I also noticed that the mobile signal strength is lower as well and that the Dual GPS is missing too.
Would flashing the China radio/baseband fix this? I know for phones like Samsung, you can flash the CP firmware, which includes the modem/baseband firmware. I don't know what the process is to extract the firmware from the China ROM and flash it. I guess if there's a .zip file that we can flash via TWRP, then that will work?
UPDATE:
OK, have flashed TWRP and flashed the firmware that I downloaded from here:
https://xiaomifirmwareupdater.com/firmware
Tried both the Chinese firmware and the Global firmware. Didn't really make much difference. I had -97 dBm and now I'm on -95 dBm. The lower, the better/stronger the signal. It is an improvement, but not by much....

Related

best way to flash Global stable on a phone that came with China stable?

as title. started seeing discussions of people having issues installing global stable on a China phone. Thanks
unlock bootloader and then flash global rom by Mi flash
hiphopboy said:
unlock bootloader and then flash global rom by Mi flash
Click to expand...
Click to collapse
The ROM can be of a inferior vertion?
my mi 8 china version is miui 10.0.6.0(OEACNFH). am i safe to unlock bootloader and flash global rom?
jmoportugal said:
The ROM can be of a inferior vertion?
Click to expand...
Click to collapse
Download lastest
Isit safe to use XiaoMiToolv2 for this purpose? (including bootloader unlock)

K20 pro MIUI 9.5.31 stacked

i have bought k20 pro but it comes with this software version and says no update available
MIUI 10 9.5.31 Top Secret
i want to update to newer versions
if you are unlocked, flash twrp and then official rom.
hussain aboaziz said:
i have bought k20 pro but it comes with this software version and says no update available
MIUI 10 9.5.31 Top Secret
i want to update to newer versions
Click to expand...
Click to collapse
Ye i had this Version too. Flashed Chinese Stock via fastboot. Now i'm on 10.3.15.
Waiting for my unlock in 7 days now to flash global ROM.?
pete80pro said:
Ye i had this Version too. Flashed Chinese Stock via fastboot. Now i'm on 10.3.15.
Waiting for my unlock in 7 days now to flash global ROM.
Click to expand...
Click to collapse
Hiw did you do that
The easiest and most secure way is with xiaomitool v2. Just download it and it does everything for you.
Did the same today, now on Miui 11 Global 11.0.3

[Mi 9t pro] Flashing miui 11, android 10 indian rom (k20 pro)

Mi 9t pro
Want to convert to india rom (k20 pro) from global, already downloaded miui 11, android 10 india (.zip).
it's recovery rom, not fastboot.
should I put it in downloaded_rom folder and unlock bootloader then install a custom recovery to flash it?
Sent from my Mi 9T Pro using XDA-Developers Legacy app
NaAZoOR said:
Mi 9t pro
Want to convert to india rom (k20 pro) from global, already downloaded miui 11, android 10 india (.zip).
it's recovery rom, not fastboot.
should I put it in downloaded_rom folder and unlock bootloader then install a custom recovery to flash it?
Sent from my Mi 9T Pro using XDA-Developers Legacy app
Click to expand...
Click to collapse
Unlock bootloader , then install custom recovery, flash android q vendor fw and flash rom
Xiaomi.eu roms are better than stock
Sent from my Redmi K20 Pro using Tapatalk
Akif01 said:
Unlock bootloader , then install custom recovery, flash android q vendor fw and flash rom
Xiaomi.eu roms are better than stock
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
install custom recovery
which one you recommend?? kindly attach link.
flash android q vendor fw and flash rom
what do you mean by vendor fw??
do you mean original k20 pro miui 10 with android 9 indian rom then flash the new one above it?
if not, kindly explain.
Xiaomi.eu roms are better than stock
some reported lag, freeze and some bugs, specially with camera app. i don't recall details right now.
NaAZoOR said:
install custom recovery
which one you recommend?? kindly attach link.
flash android q vendor fw and flash rom
what do you mean by vendor fw??
do you mean original k20 pro miui 10 with android 9 indian rom then flash the new one above it?
if not, kindly explain.
Xiaomi.eu roms are better than stock
some reported lag, freeze and some bugs, specially with camera app. i don't recall details right now.
Click to expand...
Click to collapse
I personaly use orangefox 10.6
I never felt any lag on eu rom (using over 2months)
Sent from my Redmi K20 Pro using Tapatalk
Akif01 said:
I personaly use orangefox 10.6
I never felt any lag on eu rom (using over 2months)
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
what about below points?
install custom recovery
which one you recommend?? kindly attach link.
flash android q vendor fw and flash rom
what do you mean by vendor fw??
do you mean original k20 pro miui 10 with android 9 indian rom then flash the new one above it?
if not, kindly explain.
Click to expand...
Click to collapse
NaAZoOR said:
what about below points?
Click to expand...
Click to collapse
You better flash xiaomi.eu miui11 Rom
Because indian rom doesn't support NFC
and it's pretty bloated. Even the xiaomi music app is bloated by Hungama add-on(and it's really frustrating).
If you flash miui11 by xiaomi.eu you don't need to flash firware and vendor file as the Rom itself contains them .
I highly suggest you to flash xiaomi eu rom
And it's far better than official MIUI
And less bloated
Only con is - no OTA updates in Xiaomi.eu roms
Every update is around 2.1GB in size
(I personally use xiaomi.eu MIUI 11 beta rom)
Link : https://sourceforge.net/projects/xi...i_HMK20ProMI9TPro_9.11.14_v11-10.zip/download
Sent from my Redmi K20 Pro using Tapatalk

How to Go back to MIUI 10 From MIUI 11

For some reason I didnt like the MIUI 11... and have some bugs also.. i like the miui 10... can anyone help me how to downgrade to miui 10
tarek776 said:
For some reason I didnt like the MIUI 11... and have some bugs also.. i like the miui 10... can anyone help me how to downgrade to miui 10
Click to expand...
Click to collapse
Flash MIUI 10 fastboot ROM. There's no Anti Roll back protection for our phone.
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
Flash MIUI 10 fastboot ROM. There's no Anti Roll back protection for our phone.
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
My phone K20 Pro
Open BootLoader
Yes just flash a fastboot ROM with miflash tool, remember to check on CLEAN ALL
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
Yes just flash a fastboot ROM with miflash tool, remember to check on CLEAN ALL
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
I will do that
Thank you
ishaqtkr said:
Flash MIUI 10 fastboot ROM. There's no Anti Roll back protection for our phone.
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
BRO,
Can we also roll back to PIE then????
leosinfinity said:
BRO,
Can we also roll back to PIE then????
Click to expand...
Click to collapse
Yes, in k20 pro there is no anti roll back protection.
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
Yes, in k20 pro there is no anti roll back protection.
Thanks Brother for quick Reply.:highfive:
Click to expand...
Click to collapse
ishaqtkr said:
Yes, in k20 pro there is no anti roll back protection.
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
that, i tried to flash an older version (10.3.1.0) and it did not show any error but it's not finishing the flashing progress. i already tried refreshing , selecting again the flash folder and flash again but it did not stop the flashing progress. what should i do now? please help.
https://dl.xda-developers.com/4/8/3/6/1/3/9/problem.PNG?key=N_6FuhWJKcunAjxDShbnig&ts=1575734195
tarek776 said:
that, i tried to flash an older version (10.3.1.0) and it did not show any error but it's not finishing the flashing progress. i already tried refreshing , selecting again the flash folder and flash again but it did not stop the flashing progress. what should i do now? please help.
https://dl.xda-developers.com/4/8/3/6/1/3/9/problem.PNG?key=N_6FuhWJKcunAjxDShbnig&ts=1575734195
Click to expand...
Click to collapse
In my experience it takes around 500 to 700 seconds.
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
In my experience it takes around 500 to 700 seconds.
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
The experiment was successful on another computer You have successfully returned to MIUI 10 thanks YOU brother ishaqtkr
tarek776 said:
The experiment was successful on another computer You have successfully returned to MIUI 10 thanks YOU brother ishaqtkr
Click to expand...
Click to collapse
[emoji106]
Sent from my Redmi K20 Pro using Tapatalk
Hello, i want to revert to from android 10 to android 9. Do I have first to unlock bootloader right? And then i just need to flash via miflash the correct rom? Does it void the warranty or mess up with L1 support? Thanks
dariofreud said:
Hello, i want to revert to from android 10 to android 9. Do I have first to unlock bootloader right? And then i just need to flash via miflash the correct rom? Does it void the warranty or mess up with L1 support? Thanks
Click to expand...
Click to collapse
Before you go back to 9 search for rotation problems, apparently auto rotation gets messed up. I went back to 9 and have that problem.
why everyone need revert back??
so curious
jcdr12 said:
Before you go back to 9 search for rotation problems, apparently auto rotation gets messed up. I went back to 9 and have that problem.
Click to expand...
Click to collapse
Thanks for the advice!
ghaf85 said:
why everyone need revert back??
so curious
Click to expand...
Click to collapse
For me the reason is mainly the battery. I was on MIUI 10, Android 9 for just a week before update to MIUI 11, and as far as i remember, battery was lasting way longer than it does now, so i wanted to give it a shot...
yes there is a big SOT difference (in my case android 9: 10h+ SOT, Android 10: ~7h SOT)
dariofreud said:
Thanks for the advice!
For me the reason is mainly the battery. I was on MIUI 10, Android 9 for just a week before update to MIUI 11, and as far as i remember, battery was lasting way longer than it does now, so i wanted to give it a shot...
Click to expand...
Click to collapse
I was really relieved that I didn't update to miui11 android 10 yet
me on MiuiMiX_2.3_raphael_V10.3.17.0_V4_v10-9_20190927.zip on Sept 2019
hope u all can downgrade to miui10 again..
Hi, I just bought a MI9T PRO a couple of months ago and I've made the stupid mistake to update it to MIUI 12 (Global Stable 12.0.1.0 qfkeuxm) which I don't like at all (animations, scrolling, speed...)
Now I want to downgrade it back to the original image that came with MIUI 10 (Global Stable 10.3.1.0 pfkeuxm) but since it's my first xioami phone after many years with samsung phones, I have some questions:
1. Is downgrade possible between these 2 versions of MIUI?
2. Can I flash directly MIUI 10 (10.3.1.0 pfkeuxm) from MIUI 12 with MiFlash if the Bootloader is Locked?
3. If bootloader should be unlocked in order to downgrade, which is the official app and steps to do this?
4. Does MI9T Pro with MIUI 12 (2.0.1.0 qfkeuxm) have any antirollback on it to prevent downgrade?
5. If I manage to downgrade it to MIUI 10 will all the sensors work? (gyro, wifi, bluetooth, wifi, HD videos, nfc)
About this I've read that I might be needing to backup persist.img and reflash it. Not sure how do I do that, from current MIUI 12 installed on my phone, from the fastboot image of MIUI 10?
6. What else can go wrong or I need to be aware about the downgrade procedure?
I don't want to root it, or to install custom roms on it, just to revert it to the previous stock image of MIUI 10 if possible.
Thanks.
servikt said:
Hi, I just bought a MI9T PRO a couple of months ago and I've made the stupid mistake to update it to MIUI 12 (Global Stable 12.0.1.0 qfkeuxm) which I don't like at all (animations, scrolling, speed...)
Now I want to downgrade it back to the original image that came with MIUI 10 (Global Stable 10.3.1.0 pfkeuxm) but since it's my first xioami phone after many years with samsung phones, I have some questions:
1. Is downgrade possible between these 2 versions of MIUI?
2. Can I flash directly MIUI 10 (10.3.1.0 pfkeuxm) from MIUI 12 with MiFlash if the Bootloader is Locked?
3. If bootloader should be unlocked in order to downgrade, which is the official app and steps to do this?
4. Does MI9T Pro with MIUI 12 (2.0.1.0 qfkeuxm) have any antirollback on it to prevent downgrade?
5. If I manage to downgrade it to MIUI 10 will all the sensors work? (gyro, wifi, bluetooth, wifi, HD videos, nfc)
About this I've read that I might be needing to backup persist.img and reflash it. Not sure how do I do that, from current MIUI 12 installed on my phone, from the fastboot image of MIUI 10?
6. What else can go wrong or I need to be aware about the downgrade procedure?
I don't want to root it, or to install custom roms on it, just to revert it to the previous stock image of MIUI 10 if possible.
Thanks.
Click to expand...
Click to collapse
1. Yes.
2. No, you need to unlock the bootloader. It can be locked again whilst flashing MIUI 10.
3. You can follow this guide to unlock, from the official MIUI global forums.
https://c.mi.com/thread-2262302-1-0.html
4. Not that I'm aware of, there's been none so far on all other versions.
5. They should all work fine. You can extract the persist.img from the MIUI 12 fastboot ROM.
6. Make sure you are flashing the correct region for the phone. If you flash the Chinese version, in error, and also try and lock the bootloader, you will brick the phone.
Follow this guide to fastboot flash MIUI, again from the official forums. If you read it on a mobile browser, you will need to view it in desktop mode.
It has links for the Mi Flash Tool.
https://c.mi.com/oc/miuidownload/detail?guide=2
Download the fastboot ROM you want from here
https://xiaomifirmwareupdater.com/archive/miui/raphael/

How do I revert back to Redmi K20 Pro stock rom? Currently on xiaomi.eu 11.0.5

How do I revert back to Redmi K20 Pro stock rom? Currently on xiaomi.eu 11.0.5
This phone is from China stock; 8gb/256gb; Model: M1903F11A
I have unlocked it, and flashed xiaomi.eu 11.0.5
I would like to flash it to Redmi K20 Pro stock rom and lock it; because I want automated upgrades without the risk of wiping my phone and google apps are available in the original rom too.
Wrong place.
Please post your question here: https://forum.xda-developers.com/k20-pro/help
Saswata Chakraborty said:
Wrong place.
Please post your question here: https://forum.xda-developers.com/k20-pro/help
Click to expand...
Click to collapse
opps, thank you
balloontree said:
How do I revert back to Redmi K20 Pro stock rom? Currently on xiaomi.eu 11.0.5
This phone is from China stock; 8gb/256gb; Model: M1903F11A
I have unlocked it, and flashed xiaomi.eu 11.0.5
I would like to flash it to Redmi K20 Pro stock rom and lock it; because I want automated upgrades without the risk of wiping my phone and google apps are available in the original rom too.
Click to expand...
Click to collapse
Get the latest Chinese fastboot ROM from here
https://xiaomifirmwareupdater.com/miui/raphael/
You want the Redmi K20 Pro China Stable Fastboot ROM.
Use this guide to flash it.
https://c.mi.com/oc/miuidownload/detail?guide=2
You need to view this page in desktop mode, if using a mobile browser.
In step 5, leave the flash option at the bottom of the Mi Flash Tool as the default 'clean all and lock'.
You must make sure you only do this with a Chinese ROM. You cannot lock the bootloader with any other region ROM on a Chinese model, otherwise you will hard brick the phone.
Robbo.5000 said:
In step 5, leave the flash option at the bottom of the Mi Flash Tool as the default 'clean all and lock'.
Click to expand...
Click to collapse
when I lock the phone, does it mean that the banking apps will work again?
balloontree said:
when I lock the phone, does it mean that the banking apps will work again?
Click to expand...
Click to collapse
So long as you've got the Google services working on the Chinese ROM, then it should pass SafetyNet, which is part of the banking app checks. From what I can remember, Google services are installed on the Chinese ROM, you just need to enable them and the Play Store - though things might have changed in the 18 months since I was last forced to use the Chinese ROM.

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