The term "patched" refers to modified APK files (applications) that bypass Xiaomi’s built-in security checks. Typically, apps like Magisk require a patched boot image flashed via Fastboot. The "patched method" we discuss here uses a combination of:
without a PC using the patched boot image method typically requires a second Android device to act as the "controller" for flashing . This is because the
: Unlocking the bootloader and flashing system files automatically triggers a factory reset. Back up all critical files, photos, and contacts before moving forward.
: This is mandatory. On Xiaomi devices, this usually involves a 168-hour wait after binding your Mi Account in Developer Options. A Second Android Phone : Needed to flash the file via OTG. OTG Adapter & USB Cable : To connect the two phones.
| Method | Works on Redmi 9A? | Needs PC? | Safe? | |----------------------------|--------------------|-----------|-------| | One-click root apps | ❌ No | ❌ No | ❌ No | | “Patched” APKs from YouTube| ❌ No (fake) | ❌ No | ❌ No (malware risk) | | Magisk + fastboot | ✅ Yes | ✅ Yes (once) | ✅ Yes |
, which is a prerequisite for any modern Android rooting method. While "no PC" is possible for the flashing step, you typically need another Android device to act as the terminal. Prerequisites Unlocked Bootloader : This is mandatory for Xiaomi devices and will wipe all data Secondary Android Device : Required to run fastboot commands via a USB OTG cable. USB OTG Adapter : To connect both phones together. Bugjaeger App : Install this on the phone to send commands to your Redmi 9A. Step-by-Step Guide 1. Prepare the Patched Boot Image Download the official Fastboot ROM for your specific Redmi 9A version and region. Extract the file from the ROM package using a file manager like MT Manager Install the Magisk App on your Redmi 9A. Open Magisk, tap Select and Patch a File , and select your Copy the resulting magisk_patched.img (found in the Downloads folder) to the Android device. 2. Enter Fastboot Mode Power off your Redmi 9A. Power + Volume Down buttons simultaneously until the "Fastboot" logo appears. 3. Flash without a PC Connect the two phones using the USB OTG adapter and cable. phone, open the Bugjaeger Mobile ADB tab and verify the connection by typing: fastboot devices Flash the patched image by entering: fastboot flash boot (then select the magisk_patched.img file from your storage). Once finished, reboot your device: fastboot reboot Verification After the phone reboots, open the Magisk app
To double-check, you can download a third-party Root Checker app from the Play Store. Launch it and tap "Verify Root" to see a confirmation message confirming root access.
This method is revolutionary because it does not require unlocking the bootloader. It works by exploiting a temporary vulnerability in Xiaomi’s system services on certain MIUI versions.
Go back to the main Settings menu, select , and open Developer Options . Enable OEM Unlocking and USB Debugging . Step 2: Extract the Stock Boot Image
Open the extracted folder, look for a subfolder named images , and locate the file named boot.img .