Once the tablet boots up normally, open your app drawer and tap on the application.

Since Lenovo does not provide factory images for the TB8505F easily, you must extract the boot.img from the stock ROM you downloaded.

Tap . Magisk will modify the system files and output a new file named magisk_patched_[random_strings].img in your tablet's Download directory.

Open the downloaded ROM folder, locate and vbmeta.img , and copy them to your desktop. Step 3: Enable Developer Options and Unlock the Bootloader

: If the tablet fails to boot, you can use the Rescue and Smart Assistant tool to reinstall the original factory software. Lenovo-TAB-M8-problem-fastboot-mode-was-disabled

Copy that patched file back to your PC.

: Locate boot.img from the stock firmware you downloaded earlier. Patch with Magisk : Install the Magisk app on your tablet. Open Magisk, tap Install , then Select and Patch a File .

tool installed on your PC to download the official firmware. A full backup

: Copy this patched file back to your computer's Platform Tools folder. Step 3: Flash the Patched Root Image Re-enter Fastboot : Connect your tablet to the PC and run: adb reboot bootloader Use code with caution. Copied to clipboard Disable Verification (Crucial) : To prevent bootloops, you must often flash vbmeta.img (found in your firmware) with flags:

Confirm the unlock on the tablet screen using the volume keys. The device will wipe and reboot.

Download the exact stock firmware for your tablet's build number. You can use the Lenovo Rescue and Smart Assistant (RSA) tool on Windows to fetch the official ROM. Magisk: Download the latest Magisk APK to your tablet. Step 1: Unlock the Bootloader