my track pad is stuck and does not work
How do I fix a track pad that does not work?
MacBook Pro with Retina display, iOS 9.2.1
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Does an external USB or BT pointing device work?
- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
Does it work in Recovery mode?
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX
What model MacBook Pro? What batter condition/cycle count?
A swollen battery can cause trackpad problems
This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.