OnePlus 9, 9 Pro & OnePlus 9RT Root Guide
Step-by-step Fastboot rooting tutorial for OnePlus 9 and 9 Pro on Android 14. Covers Snapdragon 888 boot.img patching, MSM Download Tool recovery, and custom kernel setups.
Hardware & Partition Specifications
Before flashing, confirm your device matches these exact kernel and partition specifications:
| Hardware Parameter | Target Specification | Engineering Details |
|---|---|---|
| SoC / Chipset | Qualcomm Snapdragon 888 5G |
Hardware processing platform and architecture |
| Target Partition | boot.img (Legacy GKI Architecture) | The exact partition image that must be patched in Magisk |
| OS Compatibility Layer | Android 14 (Upside Down Cake) Layer → | Kernel specifications, SEPolicy patching & 16KB memory page rules |
| RAM Page Alignment | 4KB Page Standard |
Virtual memory kernel standard (Android 15/16 compatibility) |
| Firmware Package | Full OTA Zip (payload.bin) |
Official OEM stock ROM packaging format |
| Unlocking Method | Fastboot (`fastboot flashing unlock`) |
Bootloader unlocking requirement and tool |
| AVB / dm-verity | Standard AVB 2.0 (No vbmeta patch needed) | Android Verified Boot verification enforcement |
Step-by-Step Rooting Procedure
Unlock the OnePlus 9, 9 Pro & OnePlus 9RT Bootloader
Enable Developer Options by tapping Build Number 7 times in Settings → About Phone. Navigate to Settings → System → Developer Options and toggle on OEM Unlocking and USB Debugging.
Fastboot (`fastboot flashing unlock`)
Extract the Stock Partition Image
Obtain the official stock firmware archive matching your exact software build number. Extract the required partition image:
Patch Partition in the Magisk App
1. Download and install the latest official Magisk v30.7 APK onto your OnePlus 9, 9 Pro & OnePlus 9RT.
2. Transfer the extracted stock boot.img (Legacy GKI Architecture) to your device's Download folder.
3. Open Magisk, tap Install on the top card, and choose Select and Patch a File.
4. Select your file. Magisk will patch the ramdisk and output magisk_patched_[random].img to your Download directory.
5. Transfer the patched image back to your PC via USB.
Flash Patched Image
Connect your device to your computer in bootloader/download mode and execute the verified flashing command:
Emergency Recovery & Bootloop Prevention
If your device fails to boot after installing an incompatible module, use this model-specific hardware recovery procedure:
Recovery Action: Fastboot -> Flash stock boot.img
OTA Maintenance: Magisk Inactive Slot OTA Installation
Related Guides & Next Steps
Continue setting up your rooted OnePlus 9, 9 Pro & OnePlus 9RT with essential modules and protection:
Android 14 (Upside Down Cake) Layer
OS LayerDeep dive into 16KB kernels, init_boot partitioning, and Play Integrity bypass rules.
OnePlus Rooting Hub
OEM HubBrowse all supported OnePlus smartphones, firmware guides, and OEM tools.
Play Integrity Fix (PIF)
ModulePass MEETS_DEVICE_INTEGRITY attestation and unblock Google Wallet on OnePlus 9, 9 Pro & OnePlus 9RT.
Fix Magisk Bootloops
RecoveryEmergency safe mode and ADB module wipe tutorial without data loss.