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5. After program successfully, disconnect the AC plug, put the upgrade file the USB stick and
plug the usb stick in the main board, connect the tool (such as SecureCRT) which you used to
get the log with the tv by the uart debug tool.
6. Set the PC cursor in the window which can show the log information and press the Enter
button of your PC keyboard, do not release the Enter button and connect the AC power, then
you will enter the Mboot of the TV (as the following picture). In the Mboot, you can input
some command to set the tv system.
7. Input “cu” command in the Mboot and press Enter, then the TV will start to upgrade.
