Before proceeding, please note that:
Immediately return to the Install menu without rebooting. Select the . Swipe to flash the Google services package. Step 5: Final Reboot
Disconnect the tablet. Unplug the USB cable and hold the Power button until the screen turns black to turn the device off. Step 3: Wipe Existing Firmware and System Partition
The Samsung Galaxy Tab 2 10.1, specifically the GT-P5100 model, was released in 2012 running Android 4.0 Ice Cream Sandwich. Officially, Samsung stopped providing software updates for this tablet years ago, leaving it stuck at Android 4.2.2 Jelly Bean. However, the active developer community has kept this device alive by creating custom ROMs.
Ensure your tablet is charged to at least 70% to prevent it from powering off mid-installation.