User's Manual

◆ Firmware Upgrading
● Turn off the player or remove the internal battery before
upgrading, open the execution document of the upgrade tool
“RKAndroidTool.exe” and tick in front of the “Loader” and
“Backup” pop-up box, then press and hold down the "ESC" of
the player, plug it into the computer and release it until tool bar
gives a prompt “find a RKAndroid Loader Rock USB device”
below, and then click for starting the upgrade; the Information
bar on the right will display the current upgrade information.
When a successful execution of upgrade is prompted, you can use
it after the system is re-furnished.