You will need to download three main files to your PC or an external microSD card:
The Samsung Galaxy Tab 2 10.1 (Model Number: ) was released in 2012, originally shipping with Android 4.0 Ice Cream Sandwich and officially ending its lifecycle on Android 4.2.2 Jelly Bean. If you own this device today, you know the struggle: Most modern apps (Chrome, YouTube, Spotify, Netflix, Banking apps) no longer support Android 4.2.2. Download Samsung Tab 2 10.1 Gt-p5100 Android 7.1.2
While this depends on the specific custom ROM developer, Android 7.x introduced a new partitioning system. If the ROM supports it, the tablet can download updates in the background and install them on a reboot, minimizing downtime. You will need to download three main files
To get the Play Store, Gmail, and Google Services, download Open GApps. and Google Services