Download Samsung Tab 2 10.1 Gt-p5100 Android 7.1.2 ((free)) -

Installing Android 7.1.2 on a Samsung Tab 2 10.1 GT-P5100 is a bit of a tricky process and involves custom firmware or unofficial updates, as the official support for this device by Samsung has long been discontinued. The Samsung Galaxy Tab 2 10.1, released in 2012, originally came with Android 4.0 (Ice Cream Sandwich) and saw updates up to Android 4.2.2 in some regions, but not beyond.

Recommendation: Look for LineageOS 14.1 specific builds for the GT-P5100. These are usually the most stable Android 7.1.2 implementations for this device. Download Samsung Tab 2 10.1 Gt-p5100 Android 7.1.2

3. Download the required files:

LineageOS 14.1 ZIP: The Android 7.1.2 ROM file specific to the GT-P5100. Installing Android 7