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Repair guides and disassembly information for the Samsung Galaxy Z Flip folding Android smartphone, released in February of 2020.

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Flip 4 screen stops coming back on after I close it

I replaced the inner screen on a flip 4, everything worked okay until I closed the device and reopened it. After that, only the outside screen works until I force restart the device. After restarting, it works properly again until the screen is closed, at which point it goes black again. I've absolutely no idea what could be causing this, please let me know if you've experienced it before!

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I literally have the exact same issue.. did you ever figure out what caused this?

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Hi @andrewscales ! This sounds to me like a potentially loose display ribbon, have you already tried reseating all the connectors you can see? It may also be worth cleaning them with Isopropyl alcohol just to ensure there's no dirt or corrosion getting in the way. Thanks!

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