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Repair and disassembly information for Samsung's flagship S20 Android smartphone, released in March of 2020.

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Touch screen not working.

Hi.

My touch screen has suddenly stopped working.

I can turn it on with the power button, but the screen does not registrer anything.

Have have been looking for solutions, but can not really find one, other than replacing the whole screen.

I can se some suppliers sell, lcd flex cable or main flex cables. Can replacing one or both of these sovle my probolem, or do i need to replace the whole screen.

Thank you.

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Hi @dan82439

Here are some images from the the service manual showing the touchscreen troubleshooting procedure and also a zoomed in image and normal size image of the components mentioned in the procedure, that may help you decide what to do.

The last step in the procedure is to replace the display assembly.

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(click on images)

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Thank you for the help. I have limited techical knowledge. But i will see if it makes sense to me, when i take i apart.

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