INFINIX S4 - Lineage OS 18.1 - Light sensor - Android Q&A, Help & Troubleshooting

Hi All, Just a regular IT Network guy in Android territory looking for a fix for two separate problem with Custom & Offical Rom.
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Rom : lineage-18.1-20220715-UNOFFICIAL-arm64_bgS-vndklite
Model : Infinix S4 X626B
Manufacturer : Infinix
Board : Infinix-X626B
Hardware : mt6765
Build Fingerprint : Infinix/H623/Infinix-X626B:9/PPR1.180610.011/JKN-210127V323:user/release-keys
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System
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Android Version : 11
Version Name : R
Released Date : September 11, 2020
Code Name : Android 11
API Level : 30
Security Patch Level : 2022-07-05
Bootloader : unknown
Build Number : X626B-H623JKN-P-210127V323
Baseband : MOLY.LR12A.R3.MP.V66.11.P35,MOLY.LR12A.R3.MP.V66.11.P35
Java VM : 2.1.0
Kernel : 4.9.117+
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CPU
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SoC : phhgsi_arm64_ab (no)
no
Processor : AArch64 Processor rev 4 (aarch64)
CPU Architecture : 4 x 1.50 GHz
4 x 2.00 GHz
Supported ABIs : arm64-v8a, armeabi-v7a, armeabi
CPU Hardware : MT6762V/WB
CPU Type : 64 Bit
CPU Governor : Unknown
Cores : 8
CPU Frequency : 400 MHz - 2001 MHz
GPU Renderer : PowerVR Rogue GE8320
GPU Vendor : Imagination Technologies
GPU Version : OpenGL ES 3.2 build [email protected]0912
Language : English (en_US)
OpenGL ES : 3.2
Root Management Apps : Magisk
SELinux : Unable to determine
Google Play Services : 23.08.15 (150406-512743456)
Vulkan : Supported (1.1)
Treble : Supported
Seamless Updates : Not Supported
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The first problems appeared with the Official ROM (X626B-H623JKN-P-210127V323):
1) Echo when receiving and making calls (GSM / APPS / VOIP) till now I'm not sure if it's a software or hardware problem.
2) Phone Lagging and freezing even when IDLE.
Hardware seems OK after a visual inspection, so i decided to try with CUSTOM ROM to see if the problem's gonna be solved.
Well it didn't goes a planned phone bricked and revived after several attempts, and managed to flash Lineage OS 18.1 and the result was:
1) Echo problem still present
2) Phone became more responsive and quicker.
3) New problem with the Auto-brightness / Night Light feature.
After digging through several forums, I ended up with the following approach to solve the problem:
1) Some forums suggest to try another Official ROM with a different KERNEL to see if it's gonna solve the echo problem, since the CUSTOM ROM uses the Official KERNEL.
2) On other forum they suggest to port the proprietary VENDOR and some file in the KERNEL from the Official ROM to the CUSTOM ROM, sounds like a good plan to try porting a different KERNEL to solve both ECHO and auto-brightness feature.
Like this Repository: https://github.com/AndroidBlobs/vendor_infinix_Infinix-X610
3) DeFluence App -[Root] Potential Echo Fix.
(Light Senor & proximity sensor are working fine and sending correct Lux Values, Velis Auto Brightness APP solved the problem but it's not working very well with Night light --> (constant backlight dimming)
I'm not very familiar with building CUSTOMS ROM but i can manage to follow some wiki tutorials, but what approach should I take first ? and a tutorial will be more than welcome!
Many thanks.

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XEON76 said:
I'm not very familiar with building CUSTOMS ROM but i can manage to follow some wiki tutorials, but what approach should I take first ? and a tutorial will be more than welcome!
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Hello and good afternoon, @XEON76
Welcome to XDA! I hope you'll always get the support you require.
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and the others. I've moved your thread to Android Q&A.
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Oswald Boelcke
Senior Moderator