Original Spare Parts For Huawei P20 Pro Microphone Module Board Antenna Dock Connect Signal Board Mic Flex Cable - Mobile Phone Flex Cables - AliExpress
SOLVED: I inserted the pin in the left bottom microphone - Huawei Mate 20 Pro - iFixit
OEM Inner Mic Microphone Flex Cable Speaker PCB Board For Huawei P20 Pro P20PRO | eBay
Huawei P20 Pro review: Breakthrough camera and overall performance makes this the flagship phone to go for in 2018 so far- Tech Reviews, Firstpost