my macbook pro 2017 has a yellow Line on the screen

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oscarmanti90 Said:

"my macbook pro 2017 has a yellow Line on the screen"

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Thank you for the screenshot.

Troubleshooting a Failing Screen:

Your Screen is Failing:

From what you have reported, your screen is apparently defective. So, It is time for a new screen. If you have not had this replaced, and it is covered under warranty, then it might be replaceable by Apple, free of charge --but that it Apple's call.

What to Try: 

• Take a Screenshot on your Mac - Apple Support. See if you still get this error. Open it on another device, seeing if the lines are still there
• Create a New User, seeing if you still get this error.
• Connect an External Monitor.  If you do not have an HDMI port, then use this adapter: Belkin USB-C to HDMI Adapter - Apple

Get this Mac Serviced...

Contact Apple, and setup a Genius Bar Appointment or see an AASP (Apple Authorized Service Provider) in your local area.

Contact Apple:

• Contact Us - Choose Locations
• USA: 1(800)MY-APPLE
• Proceed from there as Necessary

Or...

Contact an AASP: 

1. Go Here: Find Locations - Apple Authorized Reseller
2. Click: Service & Support
3. Enter: your location information
4. See: if there is an AASP nearby
5. Contact: an AASP that shows up, and find out more about the services that they offer to fix the Mac.