So my Samsung Galaxy A04's screen is perfectly fine. Volume buttons still work, power button still works. but the touch recognition DOES NOT. I did not drop it, or do anything, it was just in my bag. The screen also stays on for too long, I kept its screen timeout for 15 seconds, but it did not turn off. Until the touch recognition suddenly went out. Help me.
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Check the status of the LDI just to verify that no liquids have entered the phone¹.
It is OK then first check if the display flex cable is securely connected to the systemboard. If that is OK you will have to replace the display assembly.
Here's a video that may help.
Search online for GH81-22731A to find suppliers that suit you best. (examples only)
¹ If the LDI indicates that liquids have entered then that's different as it involves cleaning all the affected parts with Isopropyl Alcohol 99% to remove corrosion etc and then hope that everything works OK again.
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