yashsingh1/xdaforums huggingface dataset:
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
View attachment 5728215​

LeaOS is a project which based on AOSP with trebledroid patches.

This build includes settings parameters for Huawei ANE-LX1 (P20 Lite) as well as several evolutions:

Offline charging

AGPS Supl20

SafetyNet

GCam for kirin

Changelog :

LeaOS-AOSP May 2023 version

Move to android13-r44 (May SPL)

All variant are now mono-modem to avoid LTE/data disconnection

Safetynet pass with dynamic spoof pixel model

LeaOS-AOSP April 2023 version

Move to android13-r41 (April SPL)

Fix audio bug

LeaOS-AOSP March 2023 version

Move to android13-r35 (April SPL)

LeaOS-AOSP Feb 2023 version (24/02)

Move to android13-r29 (Feb SPL)

Add AGPS supl20 features

Add securize and pass safetynet (option in TrebleApp Setting)

Reduce lag UI

LeaOS-AOSP Jan 2023 version (05/01)

Move to android13-r24 (Jan SPL)

LeaOS-AOSP Dec 2022 version (08/12)

Move to android13-r16 (Dec SPL)

Support data encryption (stock huawei kernel only)

Remove Seedvault backup

Add Magisk support (need securize phone before)

LeaOS-AOSP Nov 2022 version (09/11)

Add Android Beam NFC and HCE NFC

Move to android13-r14 (Nov SPL)

Fix offline charging (no need patch now)

Reduce img size by remove apex files in system_ext

LeaOS-AOSP Oct 2022

Add Google Apps version

Fix NFC

Move to android13-r11

Add offline charging patch

LeaOS-AOSP Oct 2022 version (05/10)

Fix screen-recorder crash

Enable adb root

Move to android13-r8

First release with android13-r4

Wireless Display

Pre-requisite :

You must have TWRP installed, see this post to install it : https://xdaforums.com/t/guide-emui9-p20-lite-basics.4341373/

Installation

Download system file : "LeaOS-A13-20230503-iceows-ane.img.xz" (without google apps) or "LeaOS-A13-20230503-iceows-google-ane.img.xz" (google apps version)

Extract img file

Flash system image : fastboot flash system <drag system.img here>

Boot into twrp: power + vol+ while NOT connected to pc

Wipe cache, dalvik/art cache, internal storage

Wipe data

(option) Install DRM patch for EMUI 9.1 to support DRM : 8-Huawei-FixPreav-AB-v1.3-signed.zip

Reboot to System and setup with android assistant

Enjoy !!!

More informations to install here : https://xdaforums.com/t/guide-emui9-p20-lite-basics.4341373/

Source Code:

https://github.com/Iceows

ROM OS Version: Android 13.0

ROM Kernel: Stock kernel or Phenix 4.9.302 and sup

ROM Firmware Required: EMUI 9

Based On: Google AOSP + TrebleDroid patches

Credits:

@Frax3r (Testing)

@PHH (manifest)

@eremitein (patches)

@RakinTheGreat (GCam)

@TureX (Kernel)

@Sooti777 (patches)

@Haridhayal (patches)

@harvey186 (patches)

@DarkJoker360 (patches)

@chondoe (patches)

@ponces (patches)

@Adbdelhay.ali (kernel perm)

And all the others who tested my patches and helped me improve this ROM

Kernel :

https://xdaforums.com/t/android-13-for-p20-lite-tested-gsis.4511925/

Support Group

Channel update
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] technodeha:
Worked baseband thanks iceows

- issue aosp screen record not working LeaOS 13

View attachment 5729269
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] cvenal:
I have honor play with kirin 970 chaps with emui 9.1 this GSI boot in my phone fine but camera not work in my phone , it is show Image but it is freezing and stop camera app after that
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok thank you. Can you give me more details about your phone model, your emui version with minor version and your kernel version. I already see that the screen record works
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] cvenal:
My phone model COR-AL00 and I am use EMUI 9.1.0.312 I can use the harmony os but The system partition can not resize it give 2.8 Gbit when emui 9.1.0.312 I can resize system partition to 4 Gbit

and I am use this kernel
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok i have fix the pb in yhe next release
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] luka_bubi:
I can't get NFC to work. I tried your patch as well as "universal" one. The universal one does not work, yours does not install in TWRP. I tried same approach as with the rest of the patches in your description.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok i have not test but fix is easy
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Abdelhay.ali:
Thank you for this great ROM

The speaker volume low during calls. I have tried volume booster goodev.apk, but not worked
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] L4nCeR:
Awesome rom, everything works fine 😁 Only NFC to fix
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Abdelhay.ali:
My phone is p20 lite ANE-LX2J 9.1.0.324(C111E37R1P6). the ringtone and notification stuck on zero

could you put the following Patch in the next build

"Make volume steps and defaults adjustable for all audio streams"

https://review.lineageos.org/c/LineageOS/android_frameworks_base/+/226009

to allow using "ro.config.ring_vol_steps" in build.prop

Edit

Problem solved

I have restored vendor partition. I think vendor partition was corrupted
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Yes of course. I'm compiling new patches, I need to adapt this one for android 13 and include it immediately
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Fix in the 18/10 release
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] gamereal:
Bro I couldn't find the wallpaper and styles feature in setting. I could only see the wallpaper option
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
hi, what is the patch for?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
I do not understand your question. I made more than 10 patches on huawei
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
@AltairFR i tried to install this rom but at reboot, the screen remains frozen in initial logo HUAWEI
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Do you have install phenix kernel ? Do you have uncrypt data partition ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
i followed all the steps, uncrypt data? Do you mean install decrypt patch? Yes
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Yes
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Do you have an ane-lx1 with emui 9.1.401 or sup ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Which leaos release did you test?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
ok, i tried to install again the version without Gapps(with Gapps it's the same), and the screen is frozen in Huawei logo. i Have EMUI 9.1.401
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok now install phenix kernel 4.9.319 permissif
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
https://xdaforums.com/t/kernel-emui-9-p20-lite-phenix-kernel.4241503/ in this page?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
No , in fra3xr thread

[GUIDE] [EMUI9] P20 Lite Basics

Special key combos: Power + Vol+ = Recovery Mode While USB connected, Power + Vol+ = Erecovery Mode While USB connected, Vol- = Fastboot Plug USB while holding down Vol+ + Vol- = Download Mode Power + Vol+ + Vol- = Force Dload Flashing Any GSI...

xdaforums.com
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
I installed again all, but it didn't work. I don't know why.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] -Alf-:
Never understood why people deal with bugs/slowness just to see their Android number go up by a single digit.

Not to mention, there is practically speaking zero benefit to doing so...
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
I didn't understand your comment, sorry. All of You do a great job, obviously it's just my problem. Excuse me
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Try Phenix 4.9.235 permissif...please
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] freddie993:
nothing, i'm sorry. I've tried all possibilities. Don't worry.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] giapas:
Great ROM, grazie. Magisk not work.

Only one little problem, GPS is very slow to fix.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
For gps slow, do you have flash the patch agps ? For magisk i don't found the problem (For the moment )
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
patch to be able to fix the signal icon
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
In 3g ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Yes :D
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
.Solved
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Bugs Report: Fingerprint reader writes when it is going to be used (it gets to write =) even disabling fingerprint gestures, I don't know if it's my mistake but for now it's the only error that happened to me from the rest excellent rom
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Yes ...solve yesterday
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
t

Try last version please
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Hi, I was testing the new version with google apps

3G: Solved

The problem that causes the fingerprint sensor to the screen with ghost touches on it still continues,

google play crashes (Setup Wizard crash)
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok , i have found the problem, it is a conflit between seedvault and Google backup
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Problem fixed..Can you retest, thank you
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Ok understood, thanks to you, I'm going to flash and test anything I'll let you know by this means :3
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Hello Altair Setup Wizard: Solved

The fingerprint sensor error still remains: I will leave you some screenshots that I took of the error, I hope they will help you
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
I dont understand the error 😞.send me a vidéo please , screen record capture
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Understood, I'll send it to you privately, give me a few minutes
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Ok, no problem. Do you have telegram account ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Dovaking1327:
Yes, I'm in the Hi6250 group, can i contact you there?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Yes of course
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] giapas:
Hi Altair, charging is very slow. is it my problem?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
Hi, after installing LeaOS A13 I'm stuck in a TWRP recovery boot loop.

I came from stock EMUI 9.1.401 /ANE-LX1 and unlocked the bootloader, installed TWRP and then followed the installation instructions. When I try to boot into system, TWRP always comes up - no matter how I do the reboot. The new system doesn't boot and doesn't come up.

What went wrong or what do I need to do?

Thanks.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
If you have datacrypt you must use stock kernel
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
Hm, now Huawei eRecovery comes up, can't boot into TWRP anymore. Reinstalled TWRP and boot directly into it but still TWRP doesn't come up.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Install recovery from stock vendor. Install kernel also from stock vendor. Reboot and reset to factory in huawei recovery
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
Restore everything with eRecovery. Can't find recovery or kernel image to flash so I used eRecovery with WiFi. Phone booted properly into stock ROM. Installed TWRP once again - Phone still worked, able to boot into stock ROM and also in TWRP - fine. New try: flashed LeaOS in fastboot and TWRP wipe + install patches, same result, no boot into system.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Frax3r:
It seems you're stuck in recovery mode because you chose "Reboot to recovery" from twrp's reboot menu. There are other ways to fix it but simplest is to do whatever you were doing in twrp then reboot to fastboot and flash & boot stock recovery image. Choosing "Reboot" option in stock recovery should switch you back to leaos, if you did everything correctly.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
I did boot into system and also tried boot to poweroff + manual reboot, neither brought me back to system. I don't have a stock recovery I can flash, so I have to use eReovery to unbrick my phone. I can give it another try to flash TWRP and install LeaOS by TWRP + wipe , maybe erase /system + install patches and keep the stock kernel.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
hi and thx for ur amazing work. today i ll go to test ur guide for honor 9 lite, the twin of p20 lite

edit:system image too big for my honor 9 lite
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
I also have an Honor 9 Lite and I made a version for this model. Is it a fig-lx1 ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] -Alf-:
Try to downgrade to an older version, for example, to 9.1.0.116 -117, or so, (first EMUI 9.1 build), where the system size is 3536M (as on the A8).

(not sure you will find such a build number for your region for free...)
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
i ve resized system partition and the flash of img all ok. now when i try to install kernel via fastboot i ve an error image verification error
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
where i can find this version?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
i m going to download 9.1.0.140 bcs the vendor partition is corrupted now
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
I checked what combination of patches boots on my ANE-LX1

EMUI 9.1.401 / stock kernel

LeaOS A13 20221208	1-...DeCrypt	4-...AGPS	8-...FixPreav	Result / boot
vanilla	yes	no	no	successful
vanilla	yes	yes	no	failed
vanilla	yes	no	yes	successful
google	yes	no	no	successful
google	yes	yes	no	failed
google	yes	no	yes	successful

I also tried LeaOS-A13-20221208-iceows-google-ane with 1-..Crypt + 8-...Fix... and this works as well.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Oh many thanks these tests. Patch 4-AGPS corrupt the boot sequence
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] andreamymill:
Please friends, can you do an easy YouTube video for

LeaOS-AOSP Dec 2022 version (08/12)

Step by step, at least it will be easier, without skipping anything, because watching the video guide is better, with the precise and straightforward files to download.

Thank you from me and by other people who will appreciate.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
I try to find out why I'm still not able to do calls over VoLTE which had worked before with Huawei Android 9. When entering the code sequence *#*#4636#*#* it says this:

Shouldn't it say IMS registered and VoLTE available?

APN parameters are set to default / copied from another phone => still not working. Btw: mobile data over LTE are working fine.

Where can I look at?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] -Alf-:
Working VoLTE (Havoc 2.9):
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] frank64sunday:
Thanks Alf, as expected :unsure:
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] SK404:
Incredible how is my P20 Lite after this update, it only has a small bug and it is when connecting the bluetooth headphones, the audio does not play in them only on the device

my device ANE-LX3

excuse my bad english, use a translator
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
I have no roblem with my headphones bluetooth and i have a ane-lx1
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] andreamymill:
I am downloading LeaOS-A13-20221223-iceows-google-ane.xz, it is more recent, but there is no YouTube video yet? :cry:

And, I think that it is better SHRP then TWRP for this...no?

https://xdaforums.com/t/recovery-anne-unofficial-sky-hawk-recovery-project-3-1-16-11-2022.4519471/
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] SK404:
I have tried with several headphones and the error is still there, I also have an error in which I cannot receive files via bluetooth, I can only send
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
wipe internal data and retry please
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] SK404:
I tried to wipe, but somehow the device stayed in a bootloop so I ran the rom again and the bug was still there, I saw that you had uploaded an update and I proceeded to install it, after that it worked fine for me, in fact nearby It didn't work for me either before the update, I was testing some games to see how it was going but some don't run, pokemon unite closes after trying to read the terms and conditions but that will be resolved in the future, otherwise everything is fine
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
And the bluetooth, it is ok now ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] SK404:
it's perfect
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] V10lator:
Thanks for this. I installed it on a Honor 9 Lite (LLD-L21) and here are my findings:

- Bad performance (screen lagging and stuff).

- Bad battery usage (low battery warning as soon as you disconnect the charger, a full charge holds for just around 2 hours and stuff).

- Hangs sometimes while rebooting (on a black screen after telling it reboots but before the vibration).

- AOSP Mods for Android 12/13 from LSPosed doesn't work. Grab it from github instead.

- Long press of the power button to toggle flashlight doesn't work from any XPosed module (worked fine on "open"Kirin ROMs).

-Can't get safetynet to pass, no matter what I try.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
With magisk installed ?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] V10lator:
Yes.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Try without magisk, and all bug desapear
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] V10lator:
Sorry for the double post but it feels like all my previous edits don't get read. Anyway, have a real big problem and need a fast solution:

My phone crashed one more time but this time it boots to erecovery (skyhawk) only. What I tried already:

- Reflash the system partition.

- Do a factory reset from skyhawk.

- Overwrite the misc partition with zeros.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] -Alf-:
A. Flash stock Recovery and install service ROM via dload

B. Flash stock eRecovery and use option "Download latest version etc."

C. EDIT: Nvm, it's for ANE-LX1, sorry.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] V10lator:
A. Don't have a backup of the partition (harddrive it was stored died years ago) and uninstalling Magisk through skyhawk fails cause the data partition had been destroyed while factory resetting.

B. eRecovery backup had been deleted while doing the factory reset.

C. This is for another phone than mine. For mine you won't find firmware files online, so no way to go back to stock.

So any other solutions?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] -Alf-:
??? apparently we don't understand each other...
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
Thank you ALOT for the Android 13 Rom!!!

Can I get the boot.img please? I want to root my P20 lite (ANE-LX1 / LeaOS Rom with Google apps / Phenix kernel / Twrp / decrypt) with magisk but I don't have the boot IMG and the phone does not support ramdisk.

Regards
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Abdelhay.ali:
Magisk for p20 lite boot from recovery

Read this

https://xdaforums.com/t/guide-emui9-p20-lite-basics.4341373/

Spoiler: TWRP on Erecovery, Magisk on Recovery Setup

And this
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
well thanks, but i messed my system up and stock OS stucks at "searching for updates" and when installed LeaOS doesnt boot (stuck at boot screen). Basicly i soft bricked my phone

I have to change to lineage :(
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Bearzy_25:
Hi there, to update to latest build should i just flash system img and reboot?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
but with HWGSIPartitionKit.zip can i resize system of my honor 9 lite?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Rxfireblade:
wich version u download for honor 9 lite?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] muhammadbahaa2001:
Sorry but, what is this file Huawei-DataPrep-DeCrypt-AB-v1.0-signed.zip and why we need it?

Is it for all A/B Huawei devices?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] AltairFR:
Only for emui9 kirin65x

This file disable data encryption
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Chrisu_Kun:
When I Install nikgapps, the "Google Play Service" are always crashing...
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
What LeaOS have you installed? Because there is already a version with Google play services. Installing nikgapps on the version with the play services will of course make problems
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] Chrisu_Kun:
I install a non-gapps LeaOS so I can put better UI or whatever you call that.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
Well... Is nikgapps compatible with the February patch of android 13? Is your phone encrypted? Have you tried giving Google play services the right permissions (my gplay Services didn't have any permissions)?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] victoriordachi:
Sorry for this stupid question but is there a way to fix laggy ui? I'm using stock kernel.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
Yes! I experienced it myself and fixed it! But please note that I have a P20 lite (ANE-LX1) and if you have another model it can be different. But I think the fix works on any device. First off I got a bad resolution on device boot, to fix it just open YouTube and start a video at highest resolution. The graphics now look normal! I recommend installing the supported Phenix kernel too, because it has a lot of performance tweaks! And for the Lags you need root. If you have rooted your device with magisk, download an app from f-droid called "SmartPack", It's an app for kernel adjustments. In the app tweak your CPU to the performance governor and select the highest frequency. Also add 4gb swap memory, because 4gb of real ram is not enough for Android 13. Also limit some app to run in background.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] victoriordachi:
I don't know how to root sadly. I rooted Xiaomi devices but Huawei are harder. I have LX1 too. How can I root the phone?
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
[GUIDE] [EMUI9] P20 Lite Basics

Special key combos: Power + Vol+ = Recovery Mode While USB connected, Power + Vol+ = Erecovery Mode While USB connected, Vol- = Fastboot Plug USB while holding down Vol+ + Vol- = Download Mode Power + Vol+ + Vol- = Force Dload Flashing Any GSI...

xdaforums.com

There is a small section that explains how to install and where to download the magisk.
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] wosito@:
hello good one question I am new to this I managed to install the rom, but how do I go back to the stock rom... I have p20 lite ane-xl3 the bluetooth fails me in this rom... please help me
[Huawei P20 Lite ROMs, Kernels, Recoveries, & Other] srt54558:
Hi,

Im not really sure how it's on a ane-lx3, but on my ane-lx1 if I plug the phone in a USB anf then reboot to eRecovery, there is a way to install the default rom with wifi. Make sure you use a wifi with 2.4ghz, because 5ghz Is not supported.