You must have a custom recovery like TWRP (Team Win Recovery Project) installed on your GT-P5100 to flash the custom ROM. Download Necessary Files:
Samsung Galaxy Tab 2 10.1 (GT-P5100): Download Android 7.1.2 Nougat Firmware Guide download samsung tab 2 101 gtp5100 android 712 firmware best
There are several firmware versions available for the Samsung Tab 2 10.1 GT-P5100. Here are some of the best firmware versions: You must have a custom recovery like TWRP
Once you've chosen the right firmware for your device, it's time to download it. Here are the download links for some of the most popular firmware: download samsung tab 2 101 gtp5100 android 712 firmware best
You need a custom recovery environment to wipe the old operating system and flash the new Android 7.1.2 ZIP files. You must use a version compatible with Android 7.x (TWRP 3.0.2-0 or newer modified builds by Android-Andi).
