yashsingh1/xdaforums huggingface dataset:
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] londonhilton:
I don't know, PIG wasn't really specific what he is working on right now, he says the fp problems are caused only because of the color of the fp animation/logo,

he then mentioned he is looking at the stereo sound issue (although I am not sure if it means stereo - using ear speaker for stereo playback or the other issue that was related to mono/stereo mixer where in certain cases only one channel was playing through the main bottom speaker), but in the last 2-3 days there was no mention when the build will be released.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Calthrop:
Installed last night after unlocking my bootloader. Fingerprint sensor works fine for me, just seems to keep the screen at full brightness after unlocking for a split second too long. Everything else seems great, super stable rom.

**Edit** randomly having issues with the fingerprint sensor not recognising my print now. Have removed and re-added the prints, worked for a bit and then back to not working.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] qwijibo1:
Yeah never mind. It was working perfectly for about 24 hours. Now it rarely registers the print.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Marcb:
Amy news about the ROM going oficial?

I remember seeing something related to this.

Enviado de meu Mi 9T usando o Tapatalk
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] londonhilton:
not at the moment, maybe with 10 (what was said in telegram)

my guess would be it won't get official ever.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] RobertOrd97:
Im testing last build. In general terms, ROM works fine. Fingerprint sometimes doesn't work, but most of time works ok. NFC payment works. Camera works. The only problems is I can't download Netflix from play store, and the APK from other sources doesn't work properly.

Good job dude!

Edit: I can install Netflix without problem. I used this thread: https://xdaforums.com/android/apps-games/apk-bundle-netflix-v7-10-0-2019-05-24-t3934574

(SAI method)
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] roaka1:
[MENTION=9461998]PIPIPIG233666[/MENTION] are u still around?

---------- Post added at 10:49 AM ---------- Previous post was at 10:49 AM ----------

[/COLOR [MENTION=9461998]PIPIPIG233666[/MENTION] are u still around?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Zaboon26:
That's exactly what my thougts are...
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] paranoia_gu:
Does anyone has screen flashing issue?

My screen will flash (become very very bright suddenly) when in the dark environment.

And sometimes the screen go to dark, and back to normal when go to the bright environment.

通过我的 Mi 9T 上的 Tapatalk发言
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] cedouic:
If you want information, go to the telegram group.

Bye
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] darkMamba:
Has anyone installed AdAway? I mean without problems?

Whe I click on button "Enable Ad-Blocking" the I got following error message:

"Remount failed

Remounting the partition as read/write failed! ..."

Don't know what to do ... :confused:
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] z3t:
I have working Adaway. No problems in setting it up.

If it helps I have Magisk 19.4 and Magisk Manager 7.3.4.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] I_did_it_just_tmrrow:
Why should it not get an officaly one?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Nixsuki:
Consider that its the end of LOS 16.0 is Pie

Our device has branch with lineage-17.0 with Android 10,

The main goal of the maintainer is to be push our device to Official Lineage 17.0

Patience is the Key ?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] roaka1:
I'm sure XDA is a great platform and can't be replaced by a chatclient. It's for spreading information and making it available to anyone. This thread is still open and should be used!

Works on mine without issues. Are you sure you have granted root access to the app?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] londonhilton:
official support requires no major bugs, selinux enforcing, and certain way the build will be maintained. the dev's way of things are done are not really too much in line with what LOS requires. So no, no official any time soon. But honestly that is a good thing in case of this ROM, because it would last maybe a month before the device would pulled back from official. This way it is still alive, even though builds are not released to public..
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] cedouic:
I do not say that xda is dead :)

People asking news from PIG... PIG is very active on télégram, and not a lot on xda...

There is a lot information on the telegram chat, from him and other users.

I am old and also prefer XDA, but we cannot force them to talk here lol
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] darkMamba:
Yes, indeed.

What should I check now? Permissions? Any idea?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] =KeKe=:
[MENTION=9461998]PIPIPIG233666[/MENTION]

hi,

with this Rom i cant change my network operator. It starts with swiss Roaming and i want to change it to german operator. If i search and select that one i want, it will choose same as before and jump back to automatic.

I had the same problem with mi5 (gemini) and with all pie roms only Syberia project worked for me

https://xdaforums.com/showpost.php?p=79543481&postcount=1846

and same problem here with some LOS devices

https://gitlab.com/LineageOS/issues/android/issues/335
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] maroc84:
Since most of the information and discussion is over there in the telegram group I'll post a quick

workaround for people having problems with the fingerprint sensor:

activate night light with settings to minimal (as you please). Go to

settings - display - night light

To have it always on set schedule from eg 1 am to 12:59 am.

My fingerprint gets 100 % recognized even with a tempered glass.

Whats else? Pig is working on LOS 17 and maybe after getting 17 to boot the FP issue gets a fix in LOS 16.

I'm not very optimistic about that.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] londonhilton:
if he isn't willing to flash 16 back now, he will not do it ever, so the next build we will see is 17, there ain't gonna be a 16 build unless someone else will do it. He already said he flashed 17 and no way he is gonna flash back 16.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] roaka1:
Cool to hear LOS17 is progressing. :)

If the nightlight-slider on the minimum setting would not change the colors, it would be a workaround for me too. I like the reduced blue for the night and prefer all colors during the day. Guess i have to wait it out.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Scharek:
Hi and sorry for my bad english ^^

I have no Sound with BT Streaming in my Car with Mi9t LOS16 but i can connect. Before LOS16 was all ok.

Maybe anyone know why i have no Sound?

best wish Michael
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] londonhilton:
when connected to the car, open bluetooth settings of the connection and check if some HD setting or whatsitsname isn't ON, if it is, turn it off.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] mrLoma:
You mean AAC?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Scharek:
HD setting was the problem, thx
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] lexx.ps:
Which toolchain is used to compile the kernel?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Schnedi:
this one: https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
How install google apps? I want use backup settings, concats, messages apps.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
Ok, i hve a problem, I isntall rom and flash open gapps and no boot system. Solution? I wipe all before instalation. If no flash open gapp its ok.

I flash this open_gapps-arm64-9.0-nano-20191012.zip
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] lazyaf01:
Did you format data?

If no try formatting data partition.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
Yes , formating data. No work.

Wysłane z mojego Redmi K20 przy użyciu Tapatalka
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Marcb:
Use Open Gapps from Oct 6th. Newer ones are borked.

Enviado de meu ONEPLUS A6000 usando o Tapatalk
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] heynando:
Does Google Assistant hotword detection with the screen off work in this ROM?

Like saying "okay Google" with the screen off, does it trigger the assistant?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
Do you have links?

I instaled from 6th Oct, no try boot...
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] _MiRed_:
Hi, someone put both miui and lineage on our device at the same time ? Using multirom.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] h2sa2004:
After the new version and a reinstall, the battery and recharge are working fine. Everything seems perfect, except the fingerprint sensor. I have tried registering fingerprints many times, but it detects at times and most times it misses. I feel like it works during low light. During registration it most times shows partial or moved too quick error. Recently I registered two fingerprints and that worked fine but the unlock with fingerprint always says not recognized.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] _slix_:
I think this should be in the top post:

Helped me with

I managed to flash from 10.3.15.0 EU stable.

Encountered different issues with fingerprint scanner:

100% bright screen flashing after each scan.

Without AOD works exceptionally bad: looks like it can only accept one exact spot of the finger without rotation. And, firstly, I have to wake screen and FP scanner. On MIUI I can unlock with one tap, without AOD, just knowing where to press.

With AOD it still works worse than on MIUI, but can accept different finger angles and/or rotations.

Can't restore native MIUI camera, TitaniumBackup hangs forever. Google camera crashes on attempt to enter settings.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] rogeros123:
unfortunately Google Pay doesn't work. Magisk and safety Path installed. Magisk hide on. The safetynet test passes. Still, you can't configure and add cards. Google Pay detects root. any ideas? the same solutions worked on MIUI a day ago

Roger
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Benfatica:
Clean flash the ROM don't flash magisk set the phone up and also Google pay after that flash magisk.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] rogeros123:
I found a simpler solution and not so radical as to clean the system. I also added to hide option in magisk; google play and com.google.android.gms.

Second: clean the cache and data for the google pay application.

And finally in recovery mode (TWRP) run the file manager and set chmod 440 to: /data/data/com.google.android.gms/databases/dg.db to encrypt this file.

Now google pay configuration has passed without any problems. And it should work. Tomorrow will test.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Benfatica:
Ok GG's
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Mactley:
Been running into a network issue with this rom and the pixel experience one. When leaving wifi and connecting to 4G it'll have an x next to the logo (no connectivity). Fixed by toggling airplane mode on and off a couple of times. Very annoying bug, anyone seen this or know a fix?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] silek65:
I cant follow first configuration. It is still crashing while trying to select WiFi network... Android media process killed, and etc.... Tried to install gapps:

open_gapps-arm64-9.0-nano-20191006.zip

open_gapps-arm64-9.0-full-20191006.zip

Dont work either.

Any idea?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Kodex-99:
Download fastboot global rom, extract persist.img and flash it in twrp
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] silek65:
Hey Man!

Dont so fast :) Any guide please?

You mean this davinci_global_images_V10.3.6.0.PFJMIXM_20190603.0000.00_9.0_global_a0c4a98edb.tgz ?

How to flash persist.img?

Thank you so much
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Kodex-99:
Open the .tgz on pc with winrar for example, go in the "images" directory end extract persist.img , than copy the .img in the smartphone and with twrp flash the file as image in "persist.img" and "persistbak.img" . This worked for me.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] alx1880:
How I can demand more off the GPU? I got hiccups on some games and that problem didn't happen with stock.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] shadowro:
Still can't get google pay to finish setup, says can't pay with this phone in stores

Can anyone provide a step by step? by any chance, thank you

I've cleaned everything, flashed rom, gapps pico, magisk, had the ctsprofile not passed, but fixed, still can't get google play

magisk hide for google pay and com.google.android.gms

was already checked on com.google.android.gms.unstable

Any idea? thank you
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] bleckhen:
Screen Mirroring

Hey,

does anyone have problems with screen mirroring on a Samsung TV? The TV is found, but the "WDF service" is terminated.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] djdelarosa25:
Any news regarding official support?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Zeyar Moe Lwin:
Very soooooonnnnnnn
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] mvha:
Anyone know how to change fp color to blue?(to fix it)

How to change overlay
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] roaka1:
Haven't heard a single word around here from the maintainer for weeks. Even tho it says "official soon" in the first post i wouldn't hold my breath.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Calthrop:
Yeah I think I'm gonna flash a different rom.

Could someone link me to the Telegram group for this rom, so I can see what updates they are there, before I switch roms?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Medeon:
It's been there since the first post, months ago, it's probably never going to be official.

https://t.me/LineageDavinci
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] kg3:
PIG has stopped working on LOS16 and is working on LOS17. AFAIK he has a build which boots but is fixing bugs.

Refer to telegram group.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] chuckiebronco:
That is rather a disease than a telegram Group. Don't expect Information on Rom Status.

After all the dev battle here on xda about who is going to maintain los for mi9t, this is just ridiculous, this great piece of hw deserved more actually. Official soon means dead af.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] gersp:
I am looking for a new phone and thought the mi 9T is a good deal. But without development... No way haha Do you have a recommendation for another phone like the 9t but with more development?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] SrKeso:
Buy the pro variant
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] kg3:
Check out Evo X or develop your own ROM.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] emmanuelcassar:
LOS 17 will be official. Even pixel experience will be official since it is already listed on the website.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] SniperCamper27:
Does the mod 66hz-75hz work on the last build 21/09?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] phtablet:
This rom is well started, but for me the biggest problem, it is the fingerprint sensor that works much less well, so to speak almost unusable, and we see that it is also poorly manage on the aesthetic aspect, the overall brightness that increases instead of targeting the area.

The other point for which I am disappointed is that I have not managed to install the "NanoDroid-patcher" to then take advantage of microG.

Yet the rom seems to be deodexed but impossible to patch...

The last point, but probably related to Lineage, is the inconsistency of colors when they chose to be "dark", notification, and some apps remain white, which makes it necessary to go through complementary solutions.

I will try other rom but if the gapps are included I do not care. Possibly maximum pico, but I see no point in leaving a busy rom to install another that will be almost as much.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] NadavCE:
What sort of issues were you running into?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] phtablet:
Sorry I should have kept the log, I just remembered a part:

> device architecture: arm64
++
++ services.jar status: DEODEX
++
> patching signature spoofing support
>> patching services.jar
Aborted
!! failed to apply patches
Updater process ended with ERROR: 1

Like here but not exactly the same.

if someone managed to flash "NanoDroid-patcher-22.5.20191029.zip" via twrp that interests me.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Dracolucassos:
Yo, any news to support that? Telrgtan group is trashy, I can't see nothing there, and about PA on the website I do not see k20/mi9T

Ed, ok i see pa, nvm, do not know about los only.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] NadavCE:
I remember having issues with the TWRP install on a different device, ended up installing Magisk and then flashing through TWRP. Worked for me, you might want to give it a try.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] phtablet:
[MENTION=7070667]NadavCE[/MENTION] I have try with and without magisk, nothing has worked !

But anyway I drop the alternative rom for the moment, I find them all inferior to the stock rom.

I find it dishonest not to mention on the first page, all that jokes, like the fingerprint reader.

It is sad that the other developer on Lineage has withdrawn so quickly and too bad that the other with RR did not publish his source code and was moderated, rightly so.

I hope and I think there will be some very beautiful things but not immediately.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] kopaczus:
Hi guys,

Any updates from PIG about LOS17? I'm on a 3-months image and it is making me strangely uncomfortable, when I used to flash my Note4 weekly ;)
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] roaka1:
imho this will be shut down (closed) soon. I've been trying to get this answer for too long.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
We wont get any more updates for los16.

We 'might' get los17 after xiaomi releases kernel code for android 10, so in a few months at best.

Should have done better research before I bought the phone :(
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
What? We have to waiting until a few months?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
Xiaomi haven't released the android 10 rom yet. After the rom is released (miui 11 based on android 10) then we have to wait for the kernel source from them. After they release the source pig has to develop/adapt los17 using said source.

There's no faster way atm unless someone is willing to build los17 using prebuilt kernel since pig said he isn't interested in doing that.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] chuckiebronco:
OFFICIAL soon™ ?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] emmanuelcassar:
LOS17 is in the making. Follow everything on telegram, it's updated regularly.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] zioloiso:
I hope xioami realese stable rom with android 10 and source kernel. I think that will be in this year
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
Can you give me the link for the rom?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] b00dymoon:
Telegram channel please
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
I dont have the link.

Look around in this thread, im sure youll find it
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Pickx:
Don't bother going to the Telegram channel, it's just Pig talking about a ROM he isn't releasing and putting down anyone who asks about it.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] d2244974:
Does any of the existing screen overclocking mods work on this custom rom? And if yes, what is the highest refresh rate you can run stable? (66hz-72hz-75hz) :)
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Benfatica:
Only the 66hz works
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
[MENTION=9461998]PIPIPIG233666[/MENTION] is it safe to flash official twrp now that its out for our device?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] R!ffRaff:
yes, it works here fine :good:
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] pawcioo132:
After flash this rom I can't boot in to system. Someone have this problem too maybe and know how to fix this ? Or maybe there is any requirements before flashing this rom ?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] R!ffRaff:
you have disable vbmeta?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] pawcioo132:
what is vbmeta ?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] R!ffRaff:
vbmeta disable the verified boot
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] HelmutK.:
If it's not included in the official TWRP?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] Leeward_Fr:
Hi, I need some help.

I've read the first 25 pages, and see some people have the same problem and find a issu. But not me.

In resume :

2 weeks ago, I have the 11.0.2.0 global version with TWRP and Magisk. All was fine.

I update the OTA 11.0.3.0 global and after reboot, I've lost TWRP and Magisk, but MIUI working.

Today, I try to install TWRP again. It was a little complicated, but it's OK. I can launch TWRP. But my problem is that. I can ONLY launch TWRP.

I try to install LineageOS 16.0-20190921 because I don't want Gapps and Xiaomi apps not interesting me (and I have a very good experience with my Nexus 5 with Cyanogenmod). Actually impossible to start OS. I can't install this.

This is some try :

Do all the first post (with wipe everything).

My TWRP version is in the link in the OP and launch with the .bat. (include "fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img")

UPDATE - My TWRP version is 3.3.1-11

I've try install LineageOS with sideload and directly in the phone (with adb push command).

I've try with and without install Magisk.

I've try wipe dalvik after install LineageOS befor reboot system.

Actually, when I want to reboot system, TWRP note this : "No OS installed! Are you sure you wish to reboot?"

I've try to reinstall LineageOS, the same...

I've try to install MIUI 11.0.2.0, the same again (the 11.0.3.0 not work)...

I've notice this :

With adb sideload, the process finish on the phone before the 50% (and Total xfer: 1.00x on the prompt CMD). I have this message :"detected filesystem ext4 for /dev/block/bootdevice/by-name/system". Perhaps it's normal, I'm not sure.

At this point my research don't help me and I lost "temporally" my phone.

Sorry for the long post, and thank you for your help.
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] lazyaf01:
Try this:

Flash stock miui fastboot rom

Flash twrp

Boot to twrp

Wipe system, cache, dalvic cache

FORMAT DATA and type YES

Install lineage os

Flash gapps of choice

Reboot to system

Reboot to recovery

Install magisk

Reboot to system

Check if it works
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] HelmutK.:
In this case I can't get storage access with windows explorer... and can't boot in recovery anymore..
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] R!ffRaff:
try MiFlash
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] ColdUser:
Always loved lineage on mi5, how about mi9t is this up-to-date?
[Redmi K20 / Xiaomi Mi 9T ROMs, Kernels, Recoveries] karamancho:
Nope, its way out of date