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you push the fn key next to the Ctrl/control key. You hold down that button and push the arrow key up for the brightness to go up and the down key for it to go down. If the brightness doesn't go up then its probably on full brightness.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoOn most Sony laptops, the sound is on the function keys. Next to the Ctrl key is a blue Fn key. Press that, and at the same time, go up to F5 and F6. F5 is lower brightness, F6 is higher brightness.
Wiki User
∙ 14y agoHold down the Function key (Labeled 'fn') while pressing the F7 Key.
Wiki User
∙ 9y agono
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