Installing on the Samsung Galaxy Tab 3 10.1 (GT-P5210) is the most effective way to modernize this legacy device . While the stock recovery is limited to basic factory resets, TWRP provides a touch-driven interface that enables advanced system modifications, such as flashing custom ROMs, creating full system backups (Nandroid), and rooting. Why TWRP is Better for the GT-P5210
Click the PDA (or AP in newer versions) button in Odin and select your downloaded TWRP .tar file. Adjust Options: Go to the "Options" tab in Odin. twrp samsung galaxy tab 3 gtp5210 better