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My screen keep flickering every 2 seconds. However laptop still can function as per normal. My laptop is LG brand, R405.How can I solve it? Or should i just spend my money to get a new one?

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Your #1 suspect: LCD inverter, a circuit which supplies white light to the screen.

Step 1 (this is a workaround only)
Attach a regular CRT to the monitor port on the back of your system. You'll be able to use
the computer as before using the CRT as your display rather than the system LCD display.
Reasons to do this sooner rather than later:
(a) flickering with a frequency of 2 seconds is likely to cause headache.
(b) your LCD inverter is about to die.

Step 2.
Use your computer software (you didn't mention what OS you're running), hunt up any/all
vendor-supplied video diagnostics for your system, meaning any diags that run at any of three
levels: (1) BIOS (just above hardware level), (2) MSDOS, (3) MSwindows. The diag most likely
to help will be a BIOS video diag - though its possible that all video diagnostics may pass
without detecting an impending LCD inverter failure.

Step 3: Download the manual for your motherboard & computer system (they're probably from
different companies, with different web sites - you didn't mention the make/model/BIOS version of your motherboard, on your LG R405 computer). I went to http://www.lg.com
but couldn't find any laptops manufactured by LG - they're heavy into cellular telephony, though.

Posted on May 13, 2011

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pls vote me if i helped u

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