Resolved Question

LG 42LW TV Bootloop issue

Jan 14, 2020 11:43AM PST


I have an old LG 42LW659S which out of a sudden is caught in some kind of bootloop.
It starts only into the LG logo screen, then dims until the screen goes black, enters stand-by and starts again. The whole cycle takes about 30 sec.

I have made a video:

Looking forward to any response.


Discussion is locked

mulm_89 has chosen the best answer to their question. View answer
Reply to: LG 42LW TV Bootloop issue
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Best Answer

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The usual.
Jan 14, 2020 12:27PM PST

1. Unplug ALL connections, USB drives, etc. Test.
2. Unplug power, wait 20 or so minutes, apply power, test.

If that doesn't help it's in need of repair. The video and story does NOT tell you which board or such. never has.

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Unplug peripherals and wait does not help
Jan 14, 2020 12:53PM PST

Thanks for your quick response.
Youre proposals did not resolve the issue, unfortunately.
If its in need for repair, can you guess a probable cause?

Sorry for not posting additional information about the hardware.

Its an LC420(SD)(F1) panel. I can try to identify further board numbers etc, if required.


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The usual
Jan 14, 2020 2:11PM PST

Is a mainboard but as you suspect you can't know until you swap it out.

This upsets the new tech but hey, this is how it is.

As to boards I would check out and see what boards they have for that model.

-> A repair counter here is OUT OF THE QUESTION as the min shop counter fee is 150USD plus parts. It's only a 42 inch set so how much is one at Walmart?

160USD at

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