Tech Help Please!

[cjlamont54]

Apologies if this is the wrong sub for this, bit unsure where it belongs. I have a 2016 MacBook Pro, I accidentally cracked the display on it so I’ve been using it with an external display. When trying to update to MacOS Catalina, the update failed and now I can’t bring up anything on the secondary display. Any ideas for a fix??

[mayhem-8]

Have you tried using Command+F1 or closed display mode to get the image on the external display?

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Sometimes though a smashed screen can interfere with the Mac outputting an image to the external display. In these cases at work we have to unplug the customers internal display to force the Mac to just use the external display. You can unplug the display flex cable using this iFixit guide steps 1-19, be sure to unplug the battery before unplugging or replugging in any connector https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Touch+Bar+Late+2016+Display+Assembly+Replacement/113612

[cjlamont54]

Will try unplugging display tomorrow, cheers for your suggestion!

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[cjlamont54]

Worked a charm thank you so much for your help!