Swollen battery

My Problem

The battery was swollen and wouldn't let track pad work properly. The track pad wouldn't click on the left side and was hard to click on the right side.

My Fix

Easy peasy! I followed the instructions on the guide without a single problem.

My Advice

If your track pad becomes hard to click, it may be a swollen battery. Replacing it is easy, no need to go to the apple store. Just follow the ifixit guide.