Why is my screen Unresponsive

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Samsung Galaxy A72

Samsung Galaxy A72는 2021년 3월에 출시된 중급 USB-C 스마트폰입니다. 90Hz Super AMOLED 스크린, Snapdragon 720G 칩셋 및 6-8GB RAM을 제공합니다.

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Ulrich Elikana @ulrichelikana

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게시일: 2023년 1월 9일

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Why is my screen Unresponsive

the device is unresponsive to touch, after a hard reset it becomes responsive but only lasts for +- 5 minutes, I did a factory reset, and it worked for yet another 5 minutes, managed to update it to the latest software but still becomes unresponsive. Has anyone experienced this before? I keep seeing guys on youtube do a hard reset then claim it's permanently solved and others changed the main Flexi cable also claiming that the Flexi is faulty from the factory. Any advice on flexi cable solution?

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oldturkey03 @oldturkey03

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Ulrich Elikana the only way to check on that flex issue would be by checking the connector and the cable (properly seated, tears etc.) itself first. After that you could try a new touchscreen which will have a new flex cable. If that does not resolve it, the issue could come from the IC on the circuit board. That would require some boardlevel repair knowledge, schematics and component placement chart etc.

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IC as in the board that holds the charging port etc? main board flex connects to it aswell. Took it to phone repair once the dude , mentioned that connections are clean aswell as flex cable.

Ulrich Elikana 의 2023년 1월 9일

@Ulrich Elikana let me double check with IC is responsible for the touch and if there are other components that we could test for proper function. I know there were issue with the flex and its connectors not properly making contact.

oldturkey03 의 2023년 1월 9일

Ok.Thanks will be waiting for your feedback,

Ulrich Elikana 의 2023년 1월 9일

@Ulrich Elikana This does look like a Flex cable issue. It appears that this is a very common failure. I'd replace the LCD Display Main Motherboard Connect Flex Cable. something like this should work.

oldturkey03 의 2023년 1월 9일

@oldturkey03 Thank you very much, I've placed my order for the flex cable and will give you feedback aswell, expecting it around the first week of March.

Ulrich Elikana 의 2023년 1월 10일

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IC as in the board that holds the charging port etc? main board flex connects to it aswell. Took it to phone repair once the dude , mentioned that connections are clean aswell as flex cable. — Ulrich Elikana
@Ulrich Elikana let me double check with IC is responsible for the touch and if there are other components that we could test for proper function. I know there were issue with the flex and its connectors not properly making contact. — oldturkey03
@Ulrich Elikana This does look like a Flex cable issue. It appears that this is a very common failure. I'd replace the LCD Display Main Motherboard Connect Flex Cable. something like this should work. — oldturkey03
@oldturkey03 Thank you very much, I've placed my order for the flex cable and will give you feedback aswell, expecting it around the first week of March. — Ulrich Elikana

Samsung Galaxy A72

Why is my screen Unresponsive

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