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need to check out one by one.
Illustrated：the file hdcpkey_index.bin has a memory. In case can't know the end of
the key serial number. When off duty, the hdcpkey_index.bin can be copyed to
computer for backup. If usb disk flash is losed, copy the back up file to anther usb
flash disk for produce directly.
5.7 通过串口和网口烧录主程序
5.7
5.7
5.7
此方法主要用于电视屏幕无显示，并且无法用
USB 升级。
1） 升级小板的连接。
升级小板一端用 USB 连接线连接到电脑上，另一端用串口线连接至电视机主板上的串口座
子（XS511）或者用 VGA 线连接至电视机主板上的 VGA 输入接口（ XS605）。用网线连接电
脑和电视机主板的网口。
5.7 burn main program by serial port and network
This way is used to the situation: video screen can't display and can not upgrade by USB
flash disk. Television cab be upgraded by USB in normal condition.
1)The connection of upgrade board
Upgrade board connect to computer by USB. The other side use a serial port line connect
to the stand on main board (xs511) or use a VGA line connect to the VGA port on the
main board(XS605) . Use a reticle link between PC and TV.
2）需要用到的软件。
SecureCRT、Tftpd32 这两款软件均无需安装，直接双击相应的应用程序既可以运行。
3）升级主程序
1、运行 Tftpd32 软件，点击 Browse 按钮选择要升级的主程序（一般主程序包含两个文件
夹 images 和 mscript,要选择它们上一层的文件夹，一般命名为 target，也可以命名为其他名称）
2) the software need to used
SecureCRT、Tftpd32 both those program needn't installed, double click and it run.
3) upgrade main program
Run the program Tftpd32，click "Browse" to choose the main program which use to
upgrade(a normal main program include two folder: images and mscript, choose their
Previous Level folder ,which named target generally, or other name)
U 盘升级的情况，电视机正常情况下可 用
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