To reset a Kindle device, users should select Reset Device from the Settings menu. This process permanently erases all personal information, customized settings and content from a device; however, content can be retrieved after the reset by connecting the device to an Amazon account.
It is not possible to perform a reset without accessing the Settings menu. A reset is used to address extreme problems that other methods (including a restart) cannot correct.
Amazon uses the terms "restart" and "reset" for two distinct processes. A restart turns the device off and on again. A "reset" involves wiping all personal information and content from the device, restoring the software to its original factory conditions. A restart is used to address minor issues, such as sluggish performance or a frozen screen. When the device battery is low, charge the device for at least 30 minutes before attempting a restart.
To restart a Kindle e-reader device, users can select Restart Device from the Settings menu. If they cannot access the Settings menu, they should slide and hold the Power button for 20 to 40 seconds until the screen goes blank and the device reboots.
To restart Kindle Fire tablets, users need to press and hold the power button for two to three seconds until they see the message "Do you want to shut down your Kindle?" They may then tap Shut Down; once the tablet has turned off, pressing the power button again turns it back on.