Flashing a custom recovery carries risks, including "bricking" your device or voiding your warranty. Ensure you have the following ready:
Search for the "twrp3021smt560tar" file from a reputable source like XDA-Developers or the official TWRP website. twrp3021smt560tar full
As soon as the tablet reboots after the flash, immediately hold . This forces the device into TWRP instead of the Android OS. Flashing a custom recovery carries risks
Create a "snapshot" of your entire system. If you mess up a setting, you can restore everything in minutes. you can restore everything in minutes.