what problem it is and how to fix it please help..

emon278 wrote:

https://discussions.apple.com/content/attachment/d96a38b7-f54d-4df1-9e60-36e02b2be4c8

What is the problem in your sideways screen shot...?

If you have an issue with the display—

you run the user Diagnostic...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.

Use Apple Diagnostics to test your Mac

Use Apple Diagnostics to test your Mac - Apple Support

Use an external display or

take it in for repair—

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"

Genius Bar Reservation and Apple Support Options - Apple

Outside the USA

https://locate.apple.com/country

Learn how to get your Mac fixed and how much it will cost. Mac Repair Service Mac Repair - Official Apple Support

Get your Mac ready for service - Apple Support Get your Mac ready for service - Apple Support