Here's how to unlock the OnePlus Factory mode and access it without root
OnePlus 11 Global secret codes and hidden features - HardReset.info
This Accidental App Inside OnePlus Smartphones Can Allow A Hacker To Fully Control The Devices
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OnePlus includes Qualcomm engineering app in phones, exposes root backdoor [Update] | Ars Technica
OnePlus Phones Come Preinstalled With a Factory App That Can Root Devices
How To Enable Engineer Mode On Any OnePlus Device - Root Update
Engineering mode *#808#
How to Enable Engineer Mode on your OnePlus smartphone
What is 'EngineerMode' on OnePlus Devices? The Backdoor that Allows Root Privileges | Beebom
OnePlus Nord May Get a Third Colour Variant in Gray Ash, Spotted in OxygenOS Code | Technology News
Baptiste Robert on X: "<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 customised by @OnePlus.