Basic Operations 38View the microSD Card’s Available MemoryUse the following procedure to view used and available memory on an optional microSD card (notincluded).■ From home, tap Apps > Settings > Storage > Detail.Format a microSD CardFormatting permanently removes all files stored on an optional microSD card (not included).Note: The formatting procedure erases all the data on an installed card, after which the files cannot beretrieved. To prevent the loss of important data, please check the contents before you format a card.1. From home, tap Apps > Settings > Storage > Detail.2. Tap SD card > Format > Format > Done.Update Your TabletFrom time to time, updates may become available for your tablet. You can download and apply updatesthrough the Settings > System Update menu.Software Update CautionsDuring update: The tablet cannot be used until the software update is complete. It may take time toupdate your tablet’s software.Signal during update: Update your tablet where signal reception is good, and do not changelocation during the update process. Make sure the battery is adequately charged before beginning anupdate. A weak signal or low battery during an update may cause the update to fail. An update failuremay disable the tablet.Other functions during update: Other tablet functions cannot be used during a software update.Update Your Tablet SoftwareYou can update your tablet's software using the System Update option.Before Updating Your TabletUpdating your tablet may result in a loss of saved data depending on the condition of your tablet(malfunctioning, damaged, water seepage, etc.). You must back up all critical information before updatingyour tablet firmware.Back Up All Data Prior to UpdateTo back up your Gmail information:1. From home, tap Apps > Settings > Accounts > Google > [your account].2. Tap On/Off to enable backup of each item.3. Tap More > Sync now to sync your Google Account information.