For a clean install or if the over-the-air (OTA) update fails, you can manually flash the stock ROM:
If your tablet is currently on an older version like Android 4.1.2 or 4.2.2 Jelly Bean, you can attempt an official update: goggle samsung gt-p5210 android 4.4.2 download
: Connect your tablet to a computer and use official software like Samsung Smart Switch or Samsung Kies to check for and install available firmware. Manual Firmware Download & Installation For a clean install or if the over-the-air
Samsung Galaxy Tab 3 10.1 (GT-P5210) Go to product viewer dialog for this item. While newer versions of Android are not officially
officially supports Android 4.4.2 KitKat as its final official operating system version. While newer versions of Android are not officially available, you can still download the stock firmware for restoration or use unofficial methods for further updates. Official Update Methods
: Navigate to Settings > About tablet > Software update and select Update now or Download and install .