What do I do if it does not work

Cs1008 wrote:

How can you fix a MacBook if it brings up a folder with a question mark blinking and you tried the command and r button and it does not work

If your Mac starts up to a question mark

https://support.apple.com/en-us/HT204323

If no resolve take it in

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Outside the USA

https://locate.apple.com/country

Learn how to get your Mac fixed and how much it will cost. https://support.apple.com/mac/repair/service

Get your Mac ready for service - Apple Support https://support.apple.com/en-us/HT209095