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My phone's touchscreen is suddenly not responding to my touches, the display is working just fine, i can plug in a keyboard and mouse and use it as normal. I have tried rebooting my device, yet still no success. Any information about this?
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Hi @lyn8649
Has the phone been dropped or gotten wet at all?
Here's an image of the No Touch troubleshooting procedure from the service manual that may help.
(click on image)
Here's a teardown video and also the ifixit Samsung Galaxy A53 5G guides as well.
Looking at the troubleshooting guide the best result would be a loose connection. If that is OK it could be a faulty charge port board, a faulty display module or a faulty systemboard.
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Change flex cable wich connect motherboard and PCB(daughterboard) and try it. If its working then great,if its not then you will check for FPC of LCD screen and FPC on motherboard.
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Its screen is not responce and its fingerprint is not response
por Nahom
I have the same problem(also the fingerprint is not responding), the service told me that this a problem in CPU pins and I am waiting.
por ahmed.hassan35
In the top motherboard cover, try removing that bottom right screw .
(The screw on the right side of the main-buss).
por Sebastian