yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] _MartyMan_:
New build is running great thanks! (y)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Jimmyonek:
What firmware do I need to flash for those coming from Xiaomi EU Stable?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] _MartyMan_:
The latest build needs 21.3.3 firmware
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] baggino:
excellent construction, does the led of the notifications on call not answer work for you?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
Does ANX Camera v185R work on Project 404?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Corintio:
Not for me. :,(
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Kaeru Sapporo:
Very good rom.:)(y)

Face unlock works.

Fingerprint unlock works.

Three finger screenshot works.

Power button long press torch works.

Screenshot sound can be turned off.

Call UI works.

Difficult to switch between multiple users.😅

Thank you.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tran33:
Link 21.3.3 firmware please
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Kaeru Sapporo:
Xiaomi Firmware Updater

The ultimate script that provides firmware packages for Xiaomi devices.

xiaomifirmwareupdater.com

;)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Kaeru Sapporo:
The big feature of this ROM is that you can use OK Google! (y)

However, sometimes the battery drains quickly.🙃

I'm using it on DSDS, is it related?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] eulipereira:
hello, does rom support multiple users?

thankful
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] X01234890:
nice
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
Flashed with stock gapps and so far everything works. The Able player + Moto Audio is a brilliant touch!

I'm looking forward for further improvements / additions.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Jokohama:
Just flashed this. It's fast and smooth. Recommended!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
New "Hotfix" Update for 404 is live!

Changelog:

- Safetynet is fixed. It passes out of the box

- Fixed volume panel touch issue

- Added 404 exclusive wallpapers. All credit goes to our Designer!

- Added New accent and primary colors.

- Updated GPS Hal to latest CAF tag

- Added better ANX support

- Some changes here and there

Enjoy :)

Regards,

Akash​
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
What's difference between Project 404 and crDroid? What's unique in this ROM? I'd like to try it but there must be a reason.

What does "Added better ANX support" mean? Does it mean that ANX will work better than in others roms or there were some problems with ANX before?

Wysłane z mojego MI 9 przy użyciu Tapatalka
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] kasun_mi9:
What about battery life with 404
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] wakko42:
Rom feels smooth, like PA - safetynet is OK.

Network & Internet - Mobile Settings are not visible, had to add APN via QS Tile (to access the settings)

Can we (i) have a darker blue like on PA? :angel:

Oh and "normal" QS Tiles option? :cool:

thx & regards
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] gelrav:
Project-404 works fine for me - thanks a lot
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
- Able Audio Player. An open source audio player you can use to search youtube music and download / stream the music into your phone.

- Moto Audio ported from Motorola

If you like your music, then this rom is definitely for you.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Cogra147:
Which vendor version is required?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Khotu:
CANT flash it. Bootloop. Crdroid and Syberia works :\
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
No need to flash vendor, the rom already has built in vendor blobs.

Just make sure you're on the latest global eea, or download flash the latest eea firmware before you flssh the rom.

---------- Post added at 05:40 PM ---------- Previous post was at 05:39 PM ----------

You need to format data (the one you need to type 'yes') after flashing the rom and gapps. Otherwise you'll get booted back into recovery.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Khotu:
So why CrDroid and Syberia i dont have to format data? Only wipes?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
Normal wipes (caches, system, data) are a bad practice to do when changing roms. The best practice is to always format data (the one you need to type 'yes').
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Free2bme:
Really smooth overall. Only bug I'm having is I can't pick up incoming call. Phone jus keeps ringing and animation doesn't pop up. Same bug when placing calls - after pressing call screen doesn't change but the call itself actually goes through so I can't hang up or do whatever with the call. But installing third party dialer helps. Most likely flame gapps bug.

And installing Google app somehow messes up the ROM. Starts overheating and being choppy overall. ANXcamera v183 + 48mp fix works just fine. Thanks for the hard work!

Upd: you need to enable Google phone app as default to make dialer bug go away. My bad. For some weird reason after a day I reinstalled Google app and it's ok now. It's a go to ROM!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vihru:
Problems about permissions... doctor called but i dont see it at all.. All permission you need manually enable after installation and google play services gives some warnings.. so changed back to PA.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] gelrav:
For me there a no problems at all, battery life is ok (loaded 2 days ago, display on for 7 hours 16 min., 27% remaining).

I would like to have it for dipper and jasmin-sprout (Mi 8 and Mi A 2) Is there any chance?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
PA is maintained by Akash as well, and unfortunately for now it doesn't have Akash' latest work (improvements, fixes, updates) in it. So, chances are if you got bugs in Akash' latest rom, you'll definitely get bugs on Akash' older works.

My suggestion is to redo the installation carefully. Flash the latest global stable with MiFlash, flash vbmeta, twrp, and so on.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vihru:
i dont have any permissions problems in another akash roms... PA and Pe has gapps already so i think its that.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
Go here if you want to follow the updates on other devices. Mi8 is currentlywork in progress, don't know about Mi A2.

---------- Post added at 01:57 PM ---------- Previous post was at 01:56 PM ----------

What Gapps did you flash?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vihru:
ofc those was in the thread. flamegapps.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
I personally never tried using flamegapps. I use stock opengapps with my personalized config file and so far I have no problems.

I'd give you the config file if you're interested.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vihru:
flamegapps was in the rom post, thats why i used that. let see if i try again someday this QEMU. i like PA very much. also PE.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Free2bme:
Guys, I can't find how to enable autobrightness switch in qs bar. Other than that really good ROM.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] PK_demon:
Moto Sound app crashes after a couple of days using the rom. My system is clean, no magisk, root, exposed etc.

I install flamegapps and more app from Play Market.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
New 404 build is live!

Changelog:

- Kernel upstreamed to .186

- Switched to Qcom's bluetooth stack. This should result in better bluetooth stability/less latency.

- Switched to fresh MIUI 12 blobs. So make sure to flash MIUI 12 firmware.

- Added WIFI powersaving

- Overall performance improvements.

Enjoy

Regards,

Akash​
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Joegg:
So do I have to install the small firmware file ~80MB or the FW-vendor with ~700MB?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] jfodra:
Hi, I'm on MIUI 12 Xiaomi EU, how do I flash this rom? fActory reset? Wipe system, data, cache, then flash this rom?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] cmk7128:
Hi, after flashing the ROM you need to format data (the one you need to type yes) before reboot. Otherwise you will end up in recovery.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] jfodra:
So I don't need to wipe data, system, cache before installing? Just dirty flash then format data?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] cmk7128:
I also do the wipe before installing.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Triangle.:
This is dead?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] haanz85:
few days using these roms, my experience is satisfied with the performance and stability for the day. but i found one bug when trying the AOD (ambient display) feature. after an overnight cellphone in standby mode when using it active AOD. Suddenly when I woke up and tried to use a cell phone refresh rate so it went down, I dare to confirm this with a test directly on the UFO screen refresh rate test dropped dramatically to around 30 fps. Under normal conditions this runs in the range of 60 fps. That's what makes the UI experience feels lags. Please cross-check this feature so that there are improvements in the future
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
New 404 build is live!

Changelog:

- July patch merged

- Switched to all new Immensity kernel (should result in better experience)

- Vendor blobs updated to LA.UM.8.1.r1-15100-sm8150.0

- Performance and smoothness improvements

- Fixed Google voice recorder

- Other improvements here and there

Enjoy :)

Regards,

Akash​
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] cybul26:
I cant make or receive o call. To be more specific nothing is displaying on a screen. I can make call but only voice is appearing and nothing is displaying, just stays normal luncher with icons etc. I made a clean. Any advices?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] kmzway000:
This is happend to me too . And i cant find "Mobile Network" in setting
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Linez:
Are you on the latest firmware already?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] sampietromatias:
Incredible!

I've flashed the latest version and so far is the best rom for me! Thanks!

I've one only question, do you recommend stick with the original Kernel or it will be best to try Quantic Kernel?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
The same. Everything seems to work properly with Magisk, Pico OpenGapps and ANX camera after one day. I can say nothing about battery yet. There is only one annoying thing. There is no possibility to change order of 3 navigation buttons and have them closer (compact option). The back button is too far on the left. Generaly, great, clean and fast rom. Thanks.

Edit: I have found one bug. All contacts disappears after some time after importing them from .vcf.

Wysłane z mojego MI 9 przy użyciu Tapatalka
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Freesoul007:
On call nothing is displaying on a screen. I can make call but only voice is appearing and nothing is displaying, just stays normal luncher with icons etc. I made a clean install. Any advices?

Envoyé de mon MI 9 en utilisant Tapatalk
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] crush41:
For me the issue was that there was no app set as default call app.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Freesoul007:
I did fix the issue by reflashing the Gapps

Thx
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] sampietromatias:
For the people who has issues with calls, you have to set in the default apps menu!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tomzzi:
Flashed rom this morning. I have to say it's one of the best I've tried on Mi 9!

Smooth, simple and for now stable. No reboots today.

Anx camera works. Also android auto.

Must test everything else but for now I am happy with rom.

Battery seems ok. Must test through whole day.

Good work!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Merhunes:
Does NFC works without rooting the phone?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] haanz85:
Please fix system ui i got some errors while trying to implement substratum theme.. i got error on some app too like playstore, xda, won't work properly in theming

Thx for great work.. need few tweaks again this build.

nb: please adding some network speed monitor with dynamic view on status bar or qs bar on scrool
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
New Project 404 build is live!

Changelog:

Device side:

- Kernel upstreamed to 193

- LA.UM.8.1.r1-15600-sm8150.0 merged in kernel

- Random reboots have been fixed once and for all

- Updated graphics drivers to LA.UM.8.1.r1-15600-sm8150.0

- Many changes here and there

Rom side:

Visit our blog side to read more about it: https://blog.project404.co/

Enjoy :)

Regards,

Akash​
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
Everything work properly until now. Coming from xiaomi.eu 12.0.3. Flashed with OpenGApps Pico, Magisk and ANX camera v190 (+ v181 48MPFix).

Wysłane z mojego MI 9 przy użyciu Tapatalka
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] maodevil:
Voice match is not working but everything else is very nice!!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
Does this mean also hard freezes caused by enabled location services are also fixed or this one is still present and it is totally different issue?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
Those have also been fixed.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] I.m.Tuga:
Ok. So why not applying those fixes in other roms like PA and Pixel experience?

I'm seeing so much reports with those issues...
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] giantroxx:
Hi guy, which ANX Camera Package versions do i have to install to get the Camera (including Portrait and 48mp) working? I tried latest v190 without success. v185 wasn't working, too.

Thanks!

---------- Post added at 07:49 PM ---------- Previous post was at 07:39 PM ----------

Got it by myself, had to gain the app manually permissions! Maybe someone needs that information ;)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] nitroax:
[MENTION=5970333]markakash[/MENTION] I think there's a problem with the rom download for cepheus from the website.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tonime:
Can not be downloaded
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Cave_diver:
"The download quota for this file has been exceeded."

Guys, it's only one ROM per person! So who downloaded so many of them and spoiled it for all of us?? :(
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tonime:
Impossible download. :mad:
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
For some reason Google drive is down so I m adding here a mirror

https://drive.google.com/uc?id=1TIZZpNI0h7j_5x9WGh0pTTXRrAa_4tjt&export=download

Sorry for the inconvenience.

Regards,

Akash
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] MysteryMan105:
is it just me or is there no face unlock with this ROM? If so, how can you enable it?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tonime:
Nice rom, thank you.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] PhasrX:
Bootloop or Fastboot issue

Hey, maybe someone has a clue..

Everytime I Flash the rom and Gapps i will either get stuck in fastbboot or get into a bootloop at the "MI" Logo.

im Using recommended TWRP and flashed vbmeta Patch.

If i wipe System/Dalvik;Cache/Data I will get Stuck in fastboot and need to flash stock MIUI

If i only wipe Data/Dalvik;Cache (Factory Reset) I will get Stuck in bootloop.

This Rom sounds amazing! I really want to try it :D

P.S.

I'm around XDA Since years.. but had to create a new Account for some reason (No I wasn't banned or something like that).

So Hello @ all, I'm now the new one here :p
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] crush41:
There is none.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] maodevil:
I been using this rom for a week and I have some observations first I think it's a very good rom in general but I don't like some things first the wallpaper implementation is very strange it's like having two apps and I have problems with gapps tried different ones but all of them have strange problems you should have gapps pre install and I have two bugs voice match didn't work and the Google feed is unresponsive just my point of view thanks
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] toscha42:
If I'm not mistaken you need to format data, to be confirmed with 'yes', once installing a new AOSP ROM.

Cheers

Toscha
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Earl84:
I have exactly the same problem

tested unfortunately does not bring success
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] maodevil:
I thing is the gapps use different ones
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] PhasrX:
Thanks for the hint.

Do you know why this has to be done? This would be very annoying to do at every Rom change to a different one.. because everytime you have to restore your personal data backup :eek:

I will try and let you know if it worked :fingers-crossed:

---------- Post added at 08:22 PM ---------- Previous post was at 08:19 PM ----------

I dont think so, I've tried FireGapps (Recommended) as well as OpenGapps.

But Thanks for your Help :)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] toscha42:
Actually one definite reason would be when you switch between ROMs where the current one has Gapps included and the next one doesn't. Then 'Format data' is a must. For the other way round it may work without but I've never tried.

Since I have daily Google backup running anyhow restoring while building up the phone is not such a big deal. But yes, it still takes an hour or so. Bit annoying for sure once you change ROMs frequently.

Cheers

Toscha
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] I.m.Tuga:
In my personal opinion, after more than 10 years using Android, several smartphones like the old LG's P500, P900, Nexus 5, S7 Edge. These Xiaomi phones are in the most inconsistent, inconvenient, troublesome flashing phones I've ever used.

For a "flashaholic" this is the worst phone yet.

You cannot do everything just with the phone itself. You gotta have to use the PC all the time....

You can't keep your TWRP's backups in the phone because there are several roms that recommend format Data, losing everything inside.

Some recommend flashing vbmeta before the TWRP, but in most unlocking and rooting guides they don't mention it. Is it really worth flashing vbmeta?

BTW can I flash it through TWRP image flasher, afterwards?

I got stuck 2 times in fastboot because I did something wrong when flashing this rom ( not blaming the Dev)

On other phones I never had these issues, only used the PC for root access and TWRP and that's it, from then on it was just you and the phone.

On this phone....I gotta carry the PC all time

No more Xiaomi...
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Cave_diver:
Not sure what that rant has to do in this thread, it is completely misplaced.

And clearly you have never used a phone with an a/b partition or you would realize how easy it is to work with this Xiaomi Phone. It is dead simple compared to some other recent devices.

And the formatting data issue is related to encryption and all phones post android 6 or so need this procedure.

Also if you had an otg adapter you wouldn't need a pc.

Please do some research before venting.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] toscha42:
Can't confirm this rant. Basically I don't think it's mainly Xiaomi being the culprit it's rather Google trying to make Android 'safer'. And compared to e. g. Huawei rooting and installing custom ROMs is so much easier on Xiaomi.

What I don't understand is why you need the PC so frequently. Yes, it's needed to flash vbmeta. But that's a one-time thing which never needs to be repeated unless you install an original Miui-ROM. For just installing AOSP ROMs or switching in between them I never use the PC.

Cheers

Toscha
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] I.m.Tuga:
First of all I'd like to excuse the ranting. Been trying to fix my already mentioned mistake until 4 in the morning, that's why I was upset. It was not my intention to polut this rom. Sorry Dev and all the users.

What I simply did was wipe everything. Data, cache, dalvik after formatting the data "the -yes-thing" and ended up with the fastboot twice having to reflash the whole factory img with miflash.

Is this due to the vbmeta that I didn't flash at the beginning?

Now that I returned to my MIUI 12 backup can I use the TWRP to flash vbmeta?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] toscha42:
I don't think so. Since you need to flash vbmeta with parameters I can't see how this should work in TWRP.

Cheers

Toscha
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] I.m.Tuga:
I really want to try again and flash this rom.

Does anyone know what phone partition the vbmeta is installed?

Could try TWRP img installer and apply it to the right partition... maybe would work
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] I.m.Tuga:
My ranting has nothing to do with this thread but my thoughtsb are about another's comment.

Yes I've used, rooted, unlocked, installed ROMs in so many devices for me and friends as a hobby I know pretty much about partitions, since the days of Android gingerbread.

For me "dead simple" even nowadays is:

Unlock bootloader, rooting,twrp, making an official rom backup.

Then flash rom+gapps and it's done.

Compared to what I've been through with other brands. This is the worst.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Cave_diver:
Lol. Like unlockable bootloaders, blown efuses, proprietary soc's without source code, a/b partitions, weird proprietary partition layouts, devices that have no TWRP for them.

This is abour as easy as it gets these days, kind of sad you are not able to appreciate it.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] BigsyBiggins:
I'm thankful xiaomi are giving us moddable phones, so many brands have permanently locked bootloaders and/or no sources or dead rom community.

What other brand is offering modern hardware that has a good modding community these days? I can only think of oneplus and the prices are not comparable. You can't even get premium cpus on a pixel anymore.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] racer290:
Is using the AI Button possible in this Rom on MI9?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
Yes, it works out of the box. Don't know if it can be remapped but assistant works.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Splinter99:
It can be remapped with magisk module..
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] PhasrX:
So here are my experiences as said:

First of all it worked!

I had to flash vbmeta with the known parameters, after that i made a factory reset (Wipe Data/Cache/Dalvik), the next step was to FORMAT Data (to be confirmed with typing 'yes').

The last Step was to install 404-Rom, Gapps, and Magisk (Did it in this order).

Now the Magic happened -> It Booted up with no issues :highfive:

Thanks a lot

As Mentioned above it worked now. It wasnt the Gapps.

The ones i am using are OpenGapps (nano).

Just for the Public to let them know, if someone needs this Info.

:victory:
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] CrisClown:
project 404, has the config for use FOP in screen off and/or DC dimming config ?