Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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Brightness buttons don't work at all?

Ok so a mug of water (not much around 10-15ml) fell on my Mac and the when I turned it on (bad Idea I know) screen flicked on an off. I took it to a technician who fixed the flickering and told me to hook it up to a monitor with a vga cable. I have done that and nothing works on it. My mac screen is very dark but I can make out programs and they look like they all work. However my brightness will not turn up no matter what I do. Nothing will load onto the monitor either. I do not want to but a new mac but I need programs like final cut for work

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Where did the water spill? That might offer a clue here on what you need to fix.

From what you describe I suspect the Inverter got wet or the connections on the main logic board. Here's the steps to replace the Inverter and I would recommend replacing the inverter cable as well. IFIXIT Guide - Inverter

In the process of opening the system do spend some effort inspecting things making sure you don't have any corrosion or burnt or damaged components.

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