MBP stuck at apple logo and load half way and paused
MacBook Pro, iOS 10.1.1
MacBook Pro, iOS 10.1.1
That is not the way to boot into Safe Mode.
Reinstall El Capitan or Sierra Without Erasing Drive
Please be sure you back up if you can.
Also, see this User Tip: Basic Steps for Upgrading OS X.
MBP stuck at apple logo and load half way and paused