My display is blank , how can I find the root cause
Blank screen , the authorized service center guys telling that I need to change the display
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so “center” people are basically trained to get you to replace whole components lol
are you technically able to open the laptop and inspect the cables and what not? see if anything has come lose or maybe torn? is the screen completely blank or is it just dim? if its black, then you may need a new screen but if u can open it your self to look at the ribbons and cables. thats your best bet.
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also take a look at this guide to determine if this is something you can tackle.
2019 年带 Touch Bar 的15寸 MacBook Pro 屏幕更换
if its not your only option would be to take it some where. make sure you get them to write on the invoice that if they replace the screen and it doesnt work that they need to make sure your old screen was actually faulty so you dont get charged for more than needed.
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Have they fixed the short screen cable on 2019 models? The older ones had an issue where the screen flex was too short and would give up after a while. You could try barely opening the screen to see if the picture comes back.
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