Here : https://forum.xda-developers.com/poco-f1/how-to/how-to-transform-pocophone-f1-to-pixel-t3910187
Here is my (updated) dig on AOSP vs CAF. I decided to test the CAF edition once again and this time it did not disappoint me!
Note: I wiped and formatted to start afresh:
Audio quality through headphone and speaker both seems better in CAF...
Updated post here:
Here is my experience with latest "PixelExperience_caf_beryllium-9.0-20190709-1839-OFFICIAL.zip" paired with stable vendor-firmware "xiaomi.eu_multi_POCOF1_V10.3.5.0-ven-firm.zip" and stock/"kernel-xiaomi.eu_multi_POCOF1_V10.3.5.0-ak3.zip" kernel ...
Disclaimer: The moment you unlocked the bootloader of your phone you choose a risky path, don’t blame others if something goes wrong. Flashing custom software and tweaking things are risky business, don’t do it if you don’t know what you are...