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Repair and disassembly information for Samsung's S22 Ultra smartphone, released in February 2022.

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Motherboard flex cable upside down

After changing the charging port of S22 Ultra i connected the motherboard cable upside down and I didn’t realize that i turned the phone on and it was fine but after few sec the screen went off and restarted automatically and just stayed on samsung logo for a while and then restarted again and repeating the same procedure again and again

What can i do to fix this issue, did i damage the motherboard or something?

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@nas79501 if you damaged anything it will be the display. After all, it gets power from teh mainboard connector. Now with the ribbon cable having been reversed, it is absolutely possibly that parts of the display received power, that they shouldn't have gotten. I'd try a new display.

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But the screen is turning on and even the samsung logo appears on the screen but doesn’t go further, it just keeps restarting. Does the motherboard got damaged or something because connecting the motherboard flex cable in a reversed way?

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@nas79501 there's not much feedback coming from the display to the motherboard. Of course, anything is possible but it's just less likely. Inspect the ,other board carefully around the LCD connector and check for any odd (damaged looking components). Remember you are not the first one that this happened too. We've all been there so some of this is from personal experience ;-)

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