The filename breaks down into three important parts that you must verify before flashing:
Search for the "twrp3021smt560tar" file from a reputable source like XDA-Developers or the official TWRP website. twrp3021smt560tar full
Download Odin3 (version 3.10.7 or newer is recommended). The filename breaks down into three important parts
Go to Settings > About Device. Tap "Build Number" seven times to unlock Developer Options . Inside Developer Options, enable USB Debugging and OEM Unlock . Step-by-Step Installation Guide Tap "Build Number" seven times to unlock Developer Options
Create a "snapshot" of your entire system. If you mess up a setting, you can restore everything in minutes.
If you run into a or Odin shows a "Fail" message, let me know: What version of Windows are you using? Is your tablet the Exynos or Spreadtrum version? Did you see a specific error code in Odin?
Once in TWRP, it may ask if you want to "Allow Modifications." Swipe to allow. Why Use TWRP 3.0.2-1?