50PC5R-ZB (CHASSIS:PP78A) - LG TV Service Manual (repair manual). Page 8

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(8) Click OK button at the "edit window".
(9) Under Downloading process.

(10) If download is failed, for example "No acknowledge from

slave". Execute download again from(1).

(1) Push S/W ‘ON" (connect SCL to GND using switch at Jig )

and connect the download jig to D-sub jack.

(2) Supply the power (Stand-by 5V) and wait for 3 seconds.

(3) Push the S/W off.(Disconnect SCL to GND using switch at jig).

(4) Execute ‘Download.vi2c’ program in PC, then a main

widow will be opened.

(5) Double click the blue box and confirm "Bootloader Version" as 42.

(6) Click the "Erase Flash" button.

(7) Double click the download file low then, "edit" window will

be opened.

(8) Chick the choice button I n the "edit window", then "file

choice window’ will be opened.

(9) Click the “load > flash” button.
(10) Choose the Hex file in folder and execute downloading

with click "open button".

Push S/W

Push S/W

A

You must verify the words of “0xfffff” in the black box(A)  of figure.
(In case of H3 Service it is 0x7ffff : If you make H4 service after
the H3 service, there could be some problem)