Hi everyone.
I was wondering how many of you buy damaged and faulty psp's or other retro consoles in order to fix them and bring them back to a working standard.
I always see stuff floating around on Ebay like PSP's and 3Ds's that's damaged and wonder if it's a good investment to buy it very cheap and take a chance and learning to fix it.
Recently I bought a PSP which the seller said was damaged and only worked if the charger was plugged in. Bought it for cheap and it turns out it just had a bad battery.
I've heard of people doing that and it's certainly a good way to get cheap consoles or make some money. Some things like broken screens or torn ribbon cables are cheap to fix but they can be tricky to repair if you have no experience, especially the 3DS upper screen LCD/ribbon because it has to be twisted through the hinge part in a way that makes it tricky and the ribbon cables are very fragile. With some practice it should be easy enough to do though and there's no soldering required.
I would say go for the ones that seem like they are an easy fix. Water damage will often require a mainboard swap which makes it one of the more costly repairs to do, but at least it doesn't require soldering. The components/pins in consoles and especially handheld consoles are small so you'll want soldering experience to do things like replacing a blown fuse or a broken SD/cartridge slot but they are cheap to fix.
The ones with obvious faults like a broken screen are usually not that cheap though so it might take some searching to find a good deal on a unit that's not too difficult/expensive to fix.
If you have no experience with soldering or fixing broken consoles get a cheap console or two just to practice on and practice soldering/desoldering the components, soldering onto test pads and removing/inserting ribbon cables without damaging them or the connector, and you can use them as a test run for repairs, but if you aren't able to repair them at least you got some experience out of it. Or if you have an old broken PC laying around take the motherboard out of it and practice on that.
Also keep in mind that not all of the ribbon cable connectors use the same design so the way you are supposed to insert and remove the cables might differ and you could damage them if you aren't aware of that. The kind I'm used to is the one where you just lift the flap and pull the cable straight out, and the same but in reverse for reinserting the cable, but there are other kinds and different 3DS models use different kinds.
Note that I haven't done console repair, just some light soldering for my own projects, installing a WODE modchip in my Wii and replacing the keyboard on a laptop, so I don't have a lot of experience with this kind of thing and I certainly wouldn't trust myself soldering small components on a console. These are mostly tips based on things I have read and not so much based on my own experience.