Appendix 2: Software Upgrade - TCL 55D1620 Manual

Factory Test & Alignment Specification For MT56 Series (V1.0)

Appendix 2: Software Upgrade

How to upgrade Mboot

Connect the computer and mainboard VGA port by a serial port tool.
Serial connector definition: VGA/P303: Pin4: RXD VGA Pin11:TXD
 Open MTK "Mboot" software programming tool "Flash Tool", and set serial port.

Import the mboot file, as below.

power on the TV, then Click Upgrade key and you will see the below message.
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