Not that it doesn't completely go without saying, but whenever you start hacking any battery-powered portable device, you need to freaking be careful
. Otherwise you might end up like dude here who was pulling a Geohot on his iPhone
when short circuited and became red hot, releasing the magic smoke hither locked inside the device's electronics. Lesson learned: you take your phone, even your life, into your own hands when screwing with components, so be gentle and careful, will you?
[Via Engadget Spanish