For a clean install or if the over-the-air (OTA) update fails, you can manually flash the stock ROM:
: Navigate to Settings > About tablet > Software update and select Update now or Download and install . goggle samsung gt-p5210 android 4.4.2 download
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: For a clean install or if the over-the-air