MacBook Air 13 Startup issues

"MacBook Air 13 Startup issues: My MacBook air 13 will turn on and go to the login screen and then immediately go to a black screen even if I am trying to enter my password and will not turn back on. Please help."

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Accessing your Login Screen:

Mirror your Screen:

Connect an external Screen and then mirror the display.

• No Touch Bar: [Hold Down: option key + Press: F1 key]
• With Touch Bar: [Hold Down: option key + Press: dim display]

Attaching the Display:

Go Here: Connect a display to your Mac - Apple Support

Power Issues:

Few Links to Refer to for Power:

• If your Mac doesn't Turn On - Apple Support

• How to Turn your Mac On or Off - Apple Support

• About Mac Notebook Batteries - Apple Support

• Charge the MacBook Pro Battery - Apple Support

• If your Mac Battery won't Charge - Apple Support 

"MacBook Air 13 Startup issues: My MacBook air 13 will turn on and go to the login screen and then immediately go to a black screen even if I am trying to enter my password and will not turn back on. Please help."

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Boot Up in Safe Mode:

While in Safe Mode, certain system files (caches) are fixed, and login items do NOT pen at login. Go Here: Start up your Mac in Safe Mode - Apple Support

Clear the Screen's Caches:

Ti take a few tries, buy hold down the following upon boot. You'll be holding down the power button when performing this. The F5 button is keen here.

• [command + option + F5 + Power
• [command + option + shift + F5 + Power]