W550 died while updating


every option that is on a forum just doesnt seem to exist on my...

So this has happened before but I can usually fix it by following the steps I've seen online such as the holding f8 and shift then pressing power, as well as removing the battery and holding power for x amount of time and putting it in etc.

I noticed my screen was really dim today as I was using it, so naturally, I use the Fn key to turn it up, but nothing happens.

Apparently, my driver updated itself today without me knowing lol. How to Adjust the Display Screen Brightness in Windows 8 and 8.1 The display can use more power than any other part of a PC.

My display adapter, according to device manager, is a AMD Radeon HD 7520G.

Now, my problem is that I'm unable to adjust the screen brightness of my laptop. Well I've had my laptop for almost 5 months now, however I did break it and got a screen replacement yesterday. I've altered all the settings (as explained on other threads) but I still can't get to the centre of the problem. So, a few days ago the battery of my laptop died and when I charged it and power it up again I found that I can't change the brightness of my screen which I was able to few minutes before.

Remove the battery and power the laptop with just the AC adapter connected and see if it will boot up or not.

do also try a different AC adapter that has the same voltage and see if it will work or not.

Hard reset with battery out and AC off,put my spare power supply on,reset the memory, replaced the power jack (had planned to as it was very loose inside) checked the fuse under the the power jack (mobo is out of case)whenpower is connected no lights lite not even the battery light.

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