If you are using the latest model of MacBook, you might not be able to remove its battery. If you have a Mac with a Non-removable battery
MACBOOK AIR OS UPDATE NOT WORKING PRO
Suppose that you have followed the above step to resolve the ‘MacBook pro trackpad not working’ issue. Reset SMC to solve the MacBook Pro Trackpad Not Working Issue Under this option, you will see the option called ‘Trackpad Firmware Update.’ If you find any of the options there, you should click on them and get the firmware updated. To do it, you should first go to the App Store of your Mac and tap on the option ‘Update.’ Through an update, you can even expect the latest firmware for the Trackpad of your Mac. Therefore, updating your MacBook Pro firmware is highly recommended if you expect better performance. Also, the latest updates come with fixes to known bugs in the OS.
When your MacBook has the updated firmware, it performs smoothly. One of the most important things you should do when using a Mac is to keep it updated.