I reset my macbook from my phone but now macbook is not starting

See if the steps in the final section of this article might yield any results:

https://support.apple.com/en-us/102481

(note that it too ends up with asking for Apple’s assist)

There is no well-known way to deliberately Erase your Mac by using your phone except invoking "Lost mode" in Find My Mac using your Apple-Account. This erasure makes your Mac unusable, on purpose.

Using "Lost Mode" is essentially designating your Mac as Stolen. You can not simply resume using your Mac after such an erase.

If you intend to keep using this Mac, YOU (and no one else) need to Undo "Lost Mode"

It seems to me that your best option today might be to make an appointment at your local Apple Store and get assistance in person.

You can make a Genius Bar appointment for hardware service and support using this link: Make a Genius Bar reservation - Apple Support

Customer Support (800) MY–APPLE (800–692–7753) or on line Support.Apple.com 

or call AppleCare Support at 1-800-APLCARE (800-275-2273) 

Why did you reset your MacBook?

What, exactly does that mean?

If your Mac doesn't start up all the way

If your Mac doesn't turn on.

Please see: Writing an effective Apple Support Communities question - Apple Community

Royal_339 wrote:

I reset my macbook from my phone but now macbook is not starting

?

Reset what exactly...?

“always the beautiful answer who asks a more beautiful question. “ e e cummings

My macbook is not working good so i just erased it from my phone and remove the device and now its not turning on