Samsung Galaxy Tab S2.97 T-Mobile SM-T817TZKATMB Manual

To perform a factory reset, go to Settings > Backup & reset > Factory data reset. Follow the on-screen instructions to complete the process. Ensure you back up your data before proceeding.
Try charging the device for at least 30 minutes, then press and hold the Power and Volume Down buttons simultaneously for about 10 seconds. If it still doesn't turn on, it might be a hardware issue requiring professional assistance.
Reduce screen brightness, limit background app activity, and turn off connectivity features like Bluetooth and Wi-Fi when not in use. You can also activate Power Saving Mode in the settings.
Clear cache by going to Settings > Storage > Cached data and restarting the device. Uninstall unused apps and consider transferring media files to external storage to free up space.
Go to Settings > Wi-Fi, toggle it on, and select your network from the list. Enter the password if prompted and tap Connect.
Yes, the Galaxy Tab S2 9.7 supports microSD cards up to 128GB. Insert the card into the slot on the side of the tablet.
Press and hold the Power and Home buttons simultaneously until you see the screen flash. The screenshot will be saved in the Gallery app.
Clear the app's cache by going to Settings > Apps, select the app, and tap Storage > Clear cache. If it continues, consider uninstalling and reinstalling the app.
Go to Settings > About device > Software update > Update now. Ensure your device is connected to Wi-Fi and has sufficient battery charge before updating.
Download apps only from the Google Play Store, regularly update your software, and consider installing a reputable antivirus app. Avoid clicking on suspicious links or downloading attachments from unknown sources.