How do I use F3 to get my coordinates when my laptop makes F3 a special key?
Solution 1:
Press Fn+F3. This would press the actual F3 key, instead of your brightness key.
Solution 2:
I had this problem on my old laptop. If you can't just press F3, press Fn at the same time. You can find the Fn key at the bottom of your keyboard, left side. Hope this helped :D