How to install Magisk XDA Guide
Zygisk : No (Enable it in Magisk Settings!) Ramdisk : Yes
Prerequisite : Unlocked Bootloader
**Used this version of TWRP (Download TWRP_J716F_A12_DD.img)**
Enter bootloader, then flash TWRP img
adb reboot bootloader fastboot flash recovery TWRP_J716F_A12_DD.img
**Instructions by Magisk Manager (Using TWRP Recovery) → I used this method**
Instructions by XDA (Using Magisk Manager and boot.img)
Download **Magisk-v26.0.apk** (NOT the later versions!)
Install Magisk-v26.0apk to tablet device
Rename Magisk-v26.0.apk → Magisk-v26.0.zip (Change file extension!), then copy the .zip file to device (or to sd card)
Enter recovery (adb reboot recovery)
“Install” Magisk-v25.2.zip with TWRP Recovery Install option
Complete installation, DO NOT wipe Dalvik/Cache. Simply reboot device (select same partition slot that’s currently selected)