SOLVED: Laptop is totally dead after a swollen battery. - MacBook Pro 15" Unibody Mid 2010 - iFixit
Part of my MacBook Pro is swollen, it doesn't affect the function or keyboard, it's NOT a battery isuue (battery swollen), it used to be flat, thanks guys for your help :
2010 MacBook Pro Swollen Battery Repair | AppleToTheCore.me