While dedicated "uninstaller.zip" files were common in older versions, for Magisk 25.2, the uninstallation process is largely built directly into the official Magisk application or handled by renaming the standard installer file. Official Uninstallation Methods
What it does well
Because a standalone magisk_uninstaller_25.2.zip does not officially exist, you should use one of the following official methods to ensure a clean removal: The Magisk App Method (Recommended) Open the Magisk app on your rooted device. Locate the Uninstall Magisk button on the main screen. Select Complete Uninstall. magisk uninstaller zip 25.2
Problem: "Failed to mount /system" error in TWRP. Solution: Your system partition is read-only. Go to Mount in TWRP and manually check the box for System and Vendor before flashing.
A: Ensure you are using the correct architecture zip. If the flash fails, try the "Direct Install" method from within the Magisk App (if you can boot the OS) by selecting "Restore Stock Boot Image." If you cannot boot the OS and the zip fails, you may need to flash the stock ROM boot image manually using fastboot (fastboot flash boot boot.img). While dedicated "uninstaller
Forced Encryption: If you previously disabled forced encryption to decrypt your device, uninstalling Magisk may cause the system to re-encrypt on the next boot, which could lead to data loss if not prepared.
The Search for the Antidote: He navigated to his /Downloads folder. There it sat: Magisk-v25.2.zip. In the newer versions of Magisk, the installer and uninstaller were one and the same. To activate the "purge" sequence, Leo performed a digital alchemy—he renamed the file to uninstall.zip. Select Complete Uninstall
Locate the File: Tap on Install and navigate to where you saved the uninstall.zip file.
Download the official Magisk 25.2 APK from a trusted source like APKMirror or the Official Magisk GitHub.