Chosen Solution
Hi! I will add a picture of the damaged area Just bought this MacBook Pro 15’ Retina from 2013, previous owner thought the screen was bad, but when i looked i could still see the display if i used a lamp. I took of the back cover, it looks completely fine except for one small area, which i think has to do with the backlight? There are absolutely no signs of water damage, but i guess that the fuse has broke because of water. Now the question, is there any easy way to fix this without using a hot air station, which i dont have. Can it be fixed with a soldering iron only?
The backlight fuse is in the area to the right of the keyboard connector, brown with a little “P” on it. With the battery disconnected, measure continuity on the fuse, if it beeps it is good. You can replace this with just a soldering iron. Touch one side of the fuse, and make a ball of solder, until it surrounds the fuse. Depending on how good your iron is at putting power down, it will eventually pull the fuse off. Before soldering a new one on, check continuity to ground on both fuse pads by putting one probe on a screw hole and the other on a pad. If there is a short (beep) on one side, there is something shorting that side to ground, which is why the fuse blew. If this is the case, you will have to find out what is causing this to happen (will get into this if this is the case). If there is no short, put fresh solder on the pads (not too much, since you are not using hot air, you want to keep it fairly even) and then solder both sides of the new one on, using tweezers to hold the fuse. Before powering on, check the LCD connector and cable to see if there are any burnt pins or melted plastic, this will likely blow the fuse. Add a picture of the damaged area, and I’ll help out :)
