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6. Firmware Update
Please turn off the power or shut off the built-in battery, open the
upgrade tool “RKAndroidTool.exe”, select the √ in front of the
“Loader” & “Backup” options in the pop-up window; Press and
hold “ESC” button for firmware update (do not release it) until the
tool bar displays “Discover a RK Android Loader Rock USB
Device”; Click execute to start upgrading; Upgrading status is
showed on the right side of the information bar. When prompted,
“execute successfully” and the upgrade is then finished, rerun the
system to use.
Troubleshooting
1. Cannot turn on the device.
You cannot turn on the device when the battery is below the
critical level. Please charge the battery: connect to the
computer via USB cable or charge via AC charger, try to turn
on again while ensuring quantity of electricity.
