Screen not turning on after putting on new screen

When I plug in my phone I hear the charging sound like it supposed to be on but the screen is black

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did you disconnect the battery when replacing the screen


@tech_ni I'm curious as to whether this is as big of a deal as it used to be. Starting with the iPhone X, the screens are now OLED rather than LCD, meaning they no longer have a backlight circuit to blow.

I'm not saying it's not a good idea; you should always unplug the battery first thing and plug it back in as the last thing you do, but have we seen cases of OLED screens being blown due to being connected and disconnected with the battery plugged in?


Erwin, back to your issue, you'll want to double-check your work; those long FPC connectors can sometimes be tricky to get plugged in all the way. Make sure you don't have any bent pins and clean the connectors with 90% or higher isopropyl alcohol.

If all else fails, try the old screen again; it's always possible the new screen has issues.

Let us know what you find and we'll see if we can figure out what you should do next.


@dadibrokeit depends on what type of replacement screen was used as you can get lcd screens for any model


@tech_ni True enough, but I was mainly curious about the susceptibility of OLED screens to power events vs. that of LCD and their backlight problems; that was my point.


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