My toshiba satelite c660 backlight work only when adapter is connected

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Toshiba Satellite C660

The Satellite C660 is a series of laptops released by Toshiba around 2010. They have 15.6-inch screens and a variety of Intel processors.

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my laptop is working but no backligt ,If connected the adapter backlight work fine,remove the adapter backlight off and laptop working

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S W @avanteguarde Rep: 48.3k 7 66 97 · Answer 1 · 2017-11-15T00:06:58-07:00

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Go to Control Panel --> Power (you may need to change the view control panel icons by large or small icons or large icons to see the Power one.)

Check your plan settings.

There are different settings for your computer when its plugged in vs on battery.

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sir ,this is not worked for me. I think its hardware issue

Have you tried updating the BIOS?