Clean everything on your phone.
The first is to disinfect the second-hand mobile phone, including the receiver and microphone. The second is to clean the data to factory settings. The third is to check whether the mobile phone is damaged, which are all factors that affect Feng Shui.
AISI Green is a detection function launched by AISI that detects whether your iPhone hardware has been replaced. You can see which accessories of your iPhone have been replaced without disassembling the phone.