yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] BigsyBiggins:
Agreed I see the same.

wifi scanning doesn't fix anything for me.

Google location accuracy off fixes the most common freezes I have when using bluetooth headphones. But I will still get the occasional lockup when I go up or down the stairs in my house.

Disabling location is the only way that completely solves it but obviously cripples the phone.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mabidhussain17:
Using the latest Pixel plus version, so far 72H Hz mod works and amazingly fluid

Issues faced:

1) flashlight only works in the Camera app

2)Main 48mp camera isn't available in Gcam version i used "urynx 5"

SOT of 6 Hrs+
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AvatarRoku14:
Hi. May I ask if it is adviseable to reinstall this ROM? I can't achieve 4hrs SOT, my FP doesn't work, and the phone's performance is throttled based on Geekbench/Antutu. I also want to try the 72Hz mod.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Nambardar:
Sorry if I'm repeating this question but I tried to find Wifi fix in the discussion but never found, pls guys guide me is there any fix available for Wifi disconnection problem? Tried Google location turn off but not much luck.. thank you۔۔

Pls guys give me any wifi fix, i don't want to leave PE just because of wifi disconnect issue.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mabidhussain17:
I had base firmware miui 12 flashed it with formating data in twrp and installing this ROM. As far FP is concerned doesn't worked for me either.75hz works flawless with quantic kernel r26 and 72hz with inbuilt ROM kernel, you might need to give this ROM few cycle of charge.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Johnnnnnnnnnny:
Fingerprint always worked fine for me on this ROM
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] nvidiageek:
is 72 hz mod built in? Can you link it please?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Netvetra:
Wireless emergency alart does not work. There was one today, others can receive but not mine. It worked on March this year.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] febo17:
How long until they release a new version?

Enviado desde mi MI 9 mediante Tapatalk
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mariometal:
4 or 5 years! depends of the developer! :))
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mabidhussain17:
You have to manually flash it.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mendesabal:
fix fastboot loop (appears then first time flashing unofficial rom )

This problem is observed when the device is first time flashed after unlocking the bootloader or after installing the drain via fastboot / miflash to clean. Often it is enough to roll an unofficial firmware once and the problem disappears.

Solution in Russian, source: 4pda

Solution to the problem "... after Wipe (wipes) System, the phone is loaded only in fastboot"

I recommend reading everything carefully and completely, just do everything step by step

1. Put the last Global (Stable or Developer) via fastboot (we have no other choice: D) with the flash_all parameter.

2. After successful installation, we are waiting for loading into the system.

3. Do not go through the initial setup, we boot into fastboot.

4. Flash twrp and load directly into it.

5. Make all wipes (Wipe) EXCEPT SYSTEM.

6. Reboot into twrp. (if you boot to xiaomi bootloader instead of twrp, find the solution)

7. Make format data (yes).

8. Reboot into twrp.

9. We install any NOT OFFICIAL firmware. I put on the weekly Miroom.

10. After successful installation and loading into the system, we return to twrp.

11. Now we are doing ALL WIPES (Wipe).

12. Reboot into twrp.

13. Do format data (yes).

14. Reboot into twrp.

15. Install the required firmware.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AvatarRoku14:
Flashed Quantic and FP doesnt work but benchmark scores are back to normal. May I ask how to manuallly add the 72Hz option for this Quantic Kernel? Thanks
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vogie:
I want to switch back to Pixel Experience but I can't remember if there is bandwidth speed indicator,

Dose pixel experience plus have network speed indicator in status bar and face unlock?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
I'd wait a couple of days if I were you. Last builds have a bug that causes phone to overheat and hard freeze + some people report random reboots.

Markakash released update for Project 404 ROM which supposedly fixes those issues (but I had no chance to test it myself) and, because this ROM is more or less based on Project 404 new build should also fix those issues in PE.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Vogie:
I'm on crDroid and I don't have any reboot or overheat and freeze issues, but I think some times when I'm on phone call the voice is not clear just like when the signal is weak. I'm not completely sure if it's network issue or ROM issue but signal indicator didn't show low signal!

Thanks for your advice, If you know is there any option to monitor network speed (Download / Upload) in notification (status) bar?

2. Is there Face Unlock option?

Thanks!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
To be honest I can't remember if there was network speed monitor but I'm 80% certain it was there. I don't use it so I'm not sure.

As for the face unlock it was working without problems for me in the last release.

I should mention I was using PE+.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Cave_diver:
As far as I remember there is no network speed icon.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
You can enable it to show you the network speed when swiping down the notification area.

Face unlock is supported.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] ItsMeBT518:
freeze and overheat

so is there any news on these issues being fixed? yesterday I had my phone in my bag for 2 hours at 100%, i take it out and its hot to the tough and at 10%... I would also be so happy if ok google is fixed. An issue i have is the fingerprint scanner does now work within apps, if for example i tell my banking app to remember me by my fingerprint it will ask me to confirm my fingerprint and never scan my finger, it sees my finger though because of the green light.

also how stable is 72 hz mod with stock kernel? whats the battery trade off?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] BigsyBiggins:
As said about 4 posts up from yours... markakash has fixed the issue on another rom so seems likely that the next PE build will have it fixed.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
https://blog.pixelexperience.org/2020/08/august-review-late-update-apology/

Worth a read.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Fparacchini:
Freeze solved with Quantic Kernel r27

That's it! A few days without random reboots or freeze, after switching to Quantum Kernel r27 (with r28 same problems).
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] BigsyBiggins:
Says the latest release is r26? https://github.com/Official-Ayrton990/Quantic-Kernel-AOSP-Cepheus/releases
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Fparacchini:
Here: http://quantic.carlosayrton.com/Quantic/Cepheus/AOSP/Quantic-Kernel-r27.zip
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
New build of PixelExperience and PixelExperience Plus are live!

Changelog:

- August patch has been merged

- Kernel upstreamed to .193

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

- Fixed all the reboot and freeze issues

- Updated Adreno blobs to LA.UM.8.1.r1-15600-sm8150.0. This gives us better performance.

- Many other changes here and there.

Note: Please clean flash this update since it contains many changes.

Enjoy :)

Regards,

Akash​
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] jmelich:
Changelog says: "Note: Please clean flash this update since it contains many changes."

Which is the easiest way to perform it?

Thanks!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Johnnnnnnnnnny:
Thanks for the new ROM!

On your install page https://wiki.pixelexperience.org/devices/cepheus/install

There is a link to Pixel Expirience recovery which leads to the ROM itself. Is there a special recovery for Cepheus or just TWRP is fine?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] fk4mil:
Android System:

"There`s an internal problem with your device. Contact your manufacturer for details."

How to fix?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] iEstuardo:
Same here...
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
Updated from latest build (TWRP, install rom + magisk, reboot to system).

I also get the mentioned Android System popup, but other than that no issues so far.

Google Voice Match is back to normal. I did a reboot to be extra sure. So far so good.

Thank you [MENTION=5970333]markakash[/MENTION] !

Just ignore it. It only appears when you reboot anyway...

Maybe that's a sideeffect of updating instead of clean flashing. Let's wait for others who clean flashed.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] markakash:
Nice, and naaah no such side effect. Its a kernel thing. Kernel is looking for full stock defconfig and if it can't find that it gives that message. It doesn't cause any issue its more like an useless warning.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Kris Chen:
Does DT2S work ? Mine doesn't after flashing 0816 ... Others are fine until now.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
Works fine for me (on lock screen and on status bar). PE+
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] hoanvu1100:
i got stuck at the Mi logo

It keeps rebooting and rebooting and rebooting after 2-3s the Mi logo appear. How can I fix? Updated from miui_CEPHEUSEEAGlobal_V12.0.1.0.QFAEUXM_4d28c84f58_10.0
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
When coming from project 404 rom is it necessary to wipe data or standard factory reset is enough?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Rabby:
Same here although I've made a clean install! :crying:
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] MiodekHD:
Does this update need V12 firmware?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] the_trev2:
Yes it does. If you're upgrading from anything v11 and less, you will NEED to clean flash.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
Flash vbmeta.img and then, wipe, and rom
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Kris Chen:
DT2S on status bar works for me as well but I mean DT2S at any position at home screen doesn't work !
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] hoanvu1100:
What have I do to flash vbmeta? Through Magisk?

Sorry, im new on this
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
Works for me but I'm using Lawnchair (with quickswitch magisk module).
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
https://drive.google.com/open?id=1cuSMKit9eOyEbm52wWebYnStgys3g85L

fastboot flash vbmeta vbmeta.img --disable-verity --disable-verification

Flash this, then TWRP, then PE.

Tell me if work
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] rendykyh:
can someone upload to another link, packet.com not friendly in my country.. please
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] DiSchBn:
Same here after clean install

I have the same message here after a clean install... What can I do ?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] AcmE85:
Read...

The dev himself mentioned why this message comes up.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] nitroax:
For those who may need some help, here's what i did:

# Comming from latest Xiaomi.eu MIUI 12 (beta) with the latest TWRP #

1 - Wipe cache, dalvik and system ;

2 - Flash EEA firmware 12.0.1.0 ;

3 - Flash rom PE Plus ;

4 - Format Data (type yes) ;

5 - Reboot to system.

Works like a charm!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
Format /data before flash PE?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] nitroax:
Dude i think the steps are pretty clear.. first Flash PE, and then format data
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] maodevil:
Does anyone know if we are going to get the pixel experience recovery for the mi9?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Buncha39:
Can I have firmware v12 link ?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tuyendev:
I tried three different firmware 12.0.1 eea, 11.0.9 eu, 12.8.13 eu. All of them give me an error

"There’s an internal problem with your device .... ". Does anyone knew this problem? :(
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] BigsyBiggins:
Reboots/hard freezes seem all fixed for me
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mahmutuslu:
mtp not working where is problem ?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] VeresPL:
I flashed v12 firmware and I got this same error, but I didn't see any problem with my phone so far.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] balalev:
Face unlock is very slow to me. but maybe because i used xiaomi eu and that was so quick.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
[MENTION=5970333]markakash[/MENTION]

Bugs:

- DT2S on home screen doesn't work,

- Kill app back button doesn't work.

Everything else works properly. Thank you very much.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tamburro:
[MENTION=5970333]markakash[/MENTION]

I found a minor bug with fingerprint and faceunlock together:

- When i'm trying to unlock screen with fingerprint, it starts to blink in green, but if at the same time the device is unlocked with faceunlock by camera, the fingerprint icon continues to blink green on display.

log:

bug occurs at timestamp: 08-17 23:47

h***s://we.tl/t-6EI73j0ru7
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] nitroax:
Here http://sendanywhe.re/65AXE9F3
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] lucasm87:
Hey guys! I have a problem.. i tried to update doing a clean flash and when i want to reboot in system i can't the Mi logo.. any suggestion? Thanks in advance!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] blancheSX:
reporting some minor bug i just experienced for two days usage.

- latency delay is more bigger than MIUI ROM when using bluetooth headset

- random reboot after setting hotspot, also device cant connect to internet when using our hostspot.

Thankss ~ :)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] maxniper:
- reboot after try for connect mirascreen.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Skinny Pete:
thanks for your help. but after formatting data and trying to reboot back into recovery, I always end up in Fastboot. So I have to flash the stock again to be able to use the phone. No matter what I do, after formatting data, my phone ends up in fastboot.

thanks again
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] phabet:
Wrong vendor, install latest eea or china, read op
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] B.Z.H.29:
It's after the first format ?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] efx7n:
Last vendor

https://drive.google.com/file/d/1ICgfOWZH5DjRTKsreh5YnbZYt9pvoCwn/view
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Skinny Pete:
Yes it's after the first format.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] id_mosh:
USB tethering is broken :(
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] B.Z.H.29:
It's because you have not install a recovery. The best solution, is to flash the Xiaomi.eu stable rom, at the first flash. It install a recovery at the same time.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Roby_Ianny:
Does anyone know how to fix this??
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] emabertax:
If you install Xiaomi eu, it flash twrp recovery (is inside the file zip). You don't need to flash a recovery
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] B.Z.H.29:
This is what i am saying. The phone reboot in fastboot mod because there is not a recovery. He must flash a recovery if he don't use the Xiaom.eu ROM. However, the better solution is, to flash the xiaomi.eu Rom directly.

So, sorry for my bad English.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Skinny Pete:
Thanks for your help. Your English is perfect. Certainly better than my French.

My problem is that no matter when I do a data format and reboot, the phone goes into fastboot mod. I have this problem in both data format steps. And then I have to install stock to get out of it.

Thanks again
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] B.Z.H.29:
Thanks for the English ! :).

Try to do the setup, with account Google etc...

Have you tried with last weekly of xiaomi.eu ?

Use this tool for flash the recovery, kernel, Rom etc...

https://github.com/Szaki/XiaomiADBFastbootTools/releases

All credits to the developer of this tool.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] juve60:
hi

then which one is recommended rom and wendor:

fw+vendor_eea_11.0.5.0_cepheus.zip

vs

last xiaomi.eu stable rom ?

THX

---------- Post added at 07:04 PM ---------- Previous post was at 06:41 PM ----------

Hi DEV !!!

hi

recommended rom and wendor:

fw+vendor_eea_11.0.5.0_cepheus.zip

vs

last xiaomi.eu stable rom ?

THX
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] KaiseRRUby:
Can someone test something for me? Does this rom have the old problem with Android Auto?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] sakaki14567:
First of all THANKS for this awesome rom!

everything is working.

1 Does this rom include traffic meter on notificaiton bar like miui?(i cannot find it)if not does anyone know any magisk module to add this one|?

2 does face unlock work on this rom?cause i cannot find it.only FP pin etc i can see...

3 which Gcam is working????

thanks again sure ill buy you a beer :) :)
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Zooytron:
Telegram group

Hi,

there's a new telegram group, just opened by the dev, may be you find there your solution.

https://t.me/pixelexperienceftparanoidandroid

there you type /notes and you will find everything about PE...
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] QingKongBaiYu:
Report a bug:

My audio patch cord is recognized as a charger, system does not show in charge, but some apps do that (ex kernel manager's battery monitor stops working). And breath lamp on like in charge.

Sorry for my poor English. Waiting for next build.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Netvetra:
Same here

I have the same issue here, but seems the phone is ok...

Dirty flash from 0711 build.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Buncha39:
Thank you
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mai.the.egg:
Screen has reduced frame rate after some time with Always on Display.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
Yes, same problem. I noticed it also with Project 404 ROM.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mai.the.egg:
Wasn't like this in 0711
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
Hi,

1. this build is good for daily use?

2. battery stats? how long can you keep the display on with the battery?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mai.the.egg:
1.: Yes used it for a month now and it runs nice

2.: The same with stock or a bit better
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
is better of xiaomi eu?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] Randal_G:
Hi all, does anyone have problems with camera on latest build? I usually use ANXcamera (Magisk module) and since previous releases it worked just fine. This time it caused bootloops. Removed and tried different versions without working (it either causes bootloops or the app freezes).

I decided to go with the ROM built-in camera app... Just to discover that I had no app at all! Installed Google camera app and it freezes.

What do you think? Bad flash? I clean flashed latest ROM having also installed latest firmware. Didn't have a problem whatsoever during the process.

Thanks for the help.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] balalev:
You have to read the ANX Cam telegrap group. there are solutions for this problem. If i remember well, you have to turn off the lockscreen or something similar.

https://t.me/ANXMiuiCameraChat
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] razor1702:
184 anx camera and 170 48mpfix works good for me as magisk module, newer versions cause bootloops for me too
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
Build is good enough for daily use. For me battery life is as good (or rather bad) as with stock Miui 12. After update from MIUI 11 battery life for me is sh*tty but it might be hardware issue. ROM is very nice, all small things are polished, just like in Pixel- keyboard sounds, ringtones etc. Random freezes and reboots are no more. Best ROM out there.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mikebocian:
Hi there.

I, for a while, was a PixelExpirience user on my mi9. Unfortunately, after the update my phone started to bootloop, so i needed a clean install.

These are the steps I do:

1) upload a new firmware via XiaomiFlash.exe, i choose to flash in flashboot: cepheus_eea_global_images_V12.0.1.0.QFAEUXM_20200613.0000.00_10.0_eea_ca2b57a279

2) install twrp

3) adb push pixel expierience to /sdcard

4) install pixel expirience via twrp

5) have bootloop once again.

What I am doing wrong actually? What mounts should be wiped before/after install PE? Should I install something else?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
I think you should flash vbmeta.img after firmware ("fastboot flash vbmeta vbmeta.img --disable-verity --disable-verification"), then flash TWRP, go to TWRP, wipe data/dalvik/cache (don't wipe system and vendor), format data (with "yes" confirmation), reboot to TWRP, copy PE to internal storage, flash PE, reeboot. This procedure always works for me for every AOSP rom.

Wysłane z mojego MI 9 przy użyciu Tapatalka
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] LeninRussianKing:
I made it like that:

Wipe in TWRP (standard factory reset)

Flash firmware zip through TWRP (V12.0.1.0.QFAEUXM)

Flash Pixel Experience ROM

Wipe data (the one where you have to type yes)

???

PROFIT! But seriously - it booted without issues.
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] lucasm87:
But I'm using PE now(build 11/07) .. i have to flash vbmeta too? Or just wipe data and cache and it should works? Thanks!
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] antykat:
No, I wrote procedure for installing from the scratch for [MENTION=11039509]mikebocian[/MENTION]. If I understood well, he starts with MiFlash and full MIUI rom.

Wysłane z mojego MI 9 przy użyciu Tapatalka
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] mikebocian:
I don't remember doing anything with this vbmeta.img. I did repeat your steps [MENTION=4438401]antykat[/MENTION] without this vbmeta.img, but the outcome is the same as before. MI9 bootloop

How can i download this vbmeta, is it generic, or rather it is developed per device?
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] roxdragon:
Check previous page. Tell me if work
[Xiaomi Mi 9 ROMs, Kernels, Recoveries, & Other Dev] tamburro:
I installed vbmeta only for this last version on PE, for the previous versions i didn't need it.

I installed it at the end of process, after installed PE and works fine...before i had the same your issue, with phone stuck in bootloop on MI logo.