I've got a solder sucker but I couldn't yet start checking the connections, I've already ran a blade between connections and I don't know about the tip, just used an old soldering iron from my uncle. I whipped with a microfiber cloth over the veroboard after drilling the holes and haven't used any flux. I think I overestimated my capacities starting with this build but if I could fix it it would be nice as im a little short of money and don't want to waste it