Macbook problem with Startup manager

Lorinos wrote:

My startup manager doesn't see any hard drive. At the disc utility i see my hard drive and the bootable usb.

https://discussions.apple.com/content/attachment/dc1706d1-9377-4be8-ae43-547059fb228f

Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379

and

Try resetting the SMC http://support.apple.com/kb/ht3964

Lorinos wrote:

boot on my macbook pro after my siater deleted.

I tried all the commands. I can't startup either from bootable usb.

"She delete the hard drive."

Oh I see, " your Sister deleted the hard drive" thanks for the clarification.

You do not say what exact Mac this is or what macOS you were running...

If this Mac has a T2 chip you may have to give permission:

About Startup Security Utility - Apple Support

Lorinos wrote:

It's 2014 macbook prowith lion os. I don't think has t2 chip .

Call Customer Support  (800) MY–APPLE (800–692–7753) 

Lorinos wrote:

Hi! I tried all the commands to boot on my macbook pro after my siater deleted. I have only one choice reinstall from internet I can't get into the startup manager. Any help?

I have no idea what this is "after my siater deleted" (?)

How to reinstall macOS from macOS Recovery - https://support.apple.com/en-us/HT204904

How to select a different startup disk - Apple Support