We recently received a Macbook Pro for data recovery. When we removed the broken hard drive and installed a new one for the customer, we noticed that the trackpad was not working correctly and would not click when pressed. We dismantled the Mac again and removed the battery which was underneath the trackpad. When the battery was removed we found that the underside of battery had blown and was pushing against the trackpad. We installed a new battery, recovered the customers data and now the mac is working fine.
If you have lost data on your Mac, try our Mac Data Recovery Services