First, as raincom mentioned, an expanding battery is a major concern. I'd recommend putting it somewhere fireproof immediately (such as in a metal trash can, or

First, as raincom mentioned, an expanding battery is a major concern. I'd recommend putting it somewhere fireproof immediately (such as in a metal trash can, or on a concrete pad), and making a plan to have the battery removed and properly disposed of in the near future. Running the battery down to below 30% might also be a good idea, but only after it's somewhere fireproof. Edit: here's some more info: https://www.reddit.com/r/spicypillows/comments/gebotv/faq_what_to_do_if_you_have_a_swollen_battery/ https://www.reddit.com/r/spicypillows/comments/gebotv/faq_wh... To answer your question, though, I've learned from iFixit guides, youtube videos, just taking things apart and tinkering with them, etc. Apple uses some oddball screws sometimes, but you can get a toolkit with everything you need for $30 or less. I'm more of a software guy, but I mess with hardware occasionally. (I'm also willing to pay a professional if I feel like it's over my head.)