OnePlus 9 Series ROOT Toolbox
For 9R / 9 / 9 Pro / 9RT ColorOS / OxygenOS

Notes
1. New feedback reports from multiple users are received. Do NOT install or use the Riru - LSPosed framework and org.lsposed.manager application in the system based on Android 11 and 12, which will lead to various serious bugs in the system.
2. The unofficial Magisk branch is neither adapted nor intended to be adapted. The manager installing the unofficial branch will not be able to obtain root permission. In this case, the unofficial manager has been installed before. Please remove it and reinstall it using the toolbox. Meanwhile, for the sake of device data security, do NOT install or use unofficial branches such as Magisk Alpha / Magisk Lite.
3. If "Method I" can't boot, please use "Method II" to flash again.
4. Root may affect the recurrence of some system bugs. Please remove root when feeding back system bugs.
5. After successful ROOT, do not update to Canary test or try Zygisk, Canary branch has deleted the Magisk Hide, and it will lead to data incompatibility after next OTA, and cannot get ROOT permission again. (Canary test is not provided for ordinary users!) If you can't get the permission, you need to delete the whole folder /data/adb by yourself, which will clear all the Magisk settings and installed modules; if you want to delete this folder without ROOT permission, you usually need to do Factory Reset, which will clear all the userdata (including the downloaded files).
6. If both schemes fail to boot, try restore stock Vendor Kernel option.

https://forum.xda-developers.com/t/magisk-root-9-9-pro-mlgmxyysds-root-toolbox-coloros-oxygenos.4341167/

https://weibo.com/5505578917/KDzKtmNKV

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