KernelSU is a powerful tool for gaining root access on Android devices. However, some users are encountering an issue where the KernelSU Manager app reports 'Not Installed' even after flashing patched boot images or a kernel that includes KernelSU. This article will explore possible reasons behind this error and provide troubleshooting steps to get KernelSU working correctly on your device.
**Understanding the 'Not Installed' Error**
The 'Not Installed' message typically indicates that KernelSU cannot properly identify itself within the system. This could be due to various factors, such as:
* **Mismatched Kernel Versions:** KernelSU requires a compatible kernel version. If the kernel you're using is not supported by the current version of KernelSU, the error may occur.
* **Incomplete Patching:** Ensure that the boot image and init boot image patches are applied correctly. Incomplete patches can lead to KernelSU failing to initialize.
* **Flashing Errors:** Incorrect flashing procedures, such as improper use of recovery or TWRP, can result in partial or corrupted patches, leading to the 'Not Installed' error.
* **System Issues:** In some cases, system-level issues or conflicts with other apps might interfere with KernelSU's installation and functionality.
**Troubleshooting Steps**
1. **Check Kernel Compatibility:** Verify that the kernel version on your device (found in the kernel information during boot) is compatible with the KernelSU version you're using. Consult the KernelSU documentation or website for supported kernels.
2. **Re-Flash Patches:** Carefully re-flash the boot image, init boot image, and any other necessary patches. Double-check the flashing instructions provided by KernelSU to ensure accuracy.
3. **Use a Reliable Recovery:** Employ a trustworthy custom recovery like TWRP for flashing patches. Ensure the recovery is configured correctly and working without issues.
4. **Clear Cache and Dalvik Cache:** After flashing patches, clear the cache and Dalvik cache in your recovery to ensure a fresh system state.
5. **Reboot:** Reboot your device after each flashing procedure to allow changes to take effect.
6. **Disable Other Root Apps:** If you have other root apps installed (e.g., Magisk), temporarily disable them to rule out conflicts with KernelSU.
7. **System Reset (Advanced):** As a last resort, a factory reset of the system might resolve persistent issues,
**Additional Notes**
* APatch, an alternative root solution, reportedly works on some devices. This might indicate a potential issue specific to KernelSU's integration.
* Keep your KernelSU app updated to the latest version to benefit from bug fixes and improvements.
* Consult the official KernelSU GitHub repository or website for detailed documentation and support.
* Seek assistance from the KernelSU community forums or online support channels for device-specific troubleshooting.
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