Tap "Check for Updates." The TPSK706SPC822 package should appear. Select "Download and Install."
This is the most common and safest method for the majority of users. Navigate to the System Settings menu on your device. Select "About Device" or "System Updates."
Boot Loop: If the device fails to start, perform a "Factory Reset" from the recovery menu. Note that this will erase all local data.
TPSK706SPC822 Firmware Update: The Complete Installation and Optimization Guide