try this if you have problem with camera in pie😁

Information ROM
______________

[ROM][9.0.0_r6][AOSP][UNOFFICIAL][ALPHA] AospExtended ROM V6.0 [Treble][20/09/2018] , ROM for the Xiaomi Redmi 4 Prime

🆑 Changelog :-

-> Cam Working Well.
-> September Security Patch (9.0.0_r6)
-> Hw Key Customization
-> Substratum Support Full ( OMS )


BUGS
-> Toggle Flash Torch ( Not working )
-> And You tell me 😎


Credits :

People behind this amazing ROM!

-@ishubhamsingh(Owner/Dev/Designer)
-JDC Team
-DirtyUnicorns
-LineageOS/Cyanogenmod
-TeamSubstratum
-Nitrogen Project
-Pure Nexus
-OmniROM
-AOSPA
-ABC ROM
-GZR Community
-Lakor Tools for Via Browser
-Hemanth S Tobi for Retro Music Player
-@AlienCreature7 and @Wizper99 (For designing the ROM Logo, Fling etc)
-Tirth Patel (thp1997)
-Abhishek Agarwal (TheScarastic)


📌Status : ALPHA STABLE

🔗Link : https://mega.nz/#!W5NRkajS!lSm0XJeAo7clKoJaBLC5TrMbT0iGfRK2-sQcnDnX5ag

⚠️ NOTE 🔖 Install patches after flashing the AEX ROM, don't forget to mount the vendor before installing patches 1, 2, 3 I recommend using a PATCH according to the rom I shared ... Enjoy

Install AEX ROM as in ROM in general & without a flash vendor, I have wrapped the vendor together with system.new.bat.br.

😎😉

Universal GMS Doze v1.2.0 (NMF21F, Sep 2018) by gloeyisk

A simple way to force dozing GMS for fix draining battery systemlessly. Including XiaomiDoze prebuilt (can be used for another devices other)

Using it, Uncle Ginn recommends

Kernel Adiutor Mod

Different? Try by Yourself, if u don't dare just skip okay :3

Thanks @nurananto_toushirou