Here's how to unlock the OnePlus Factory mode and access it without root
OnePlus Buds - APK Download
Thread by @fs0c131y: "<Thread> Hey @OnePlus! I don't think this EngineerMode APK must be in an user build... This app is a system app made by @Qualcomm and […]" #SuperSu #Magisk
All OnePlus Smartphone Service Code and Secret Codes
Modify OnePlus 7 Pro 5G, 8 and 8 Pro, 9 and 9 Pro NR/LTE-A band combos - MT-TECH.FI