Move this specific boot.img file onto your phone's internal storage directory.
opens up a new world of customization. By unlocking the bootloader and using Magisk, you can safely manage root access. Always check the official for the most up-to-date patched files and TWRP versions specific to your device's software version. oppo f11 root xda link
Open Magisk, tap , choose Select and Patch a File , and select your stock boot.img . Move this specific boot