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ā11-24-2024 07:23 AM in
Galaxy S21I just installed a screen on my S21+ and the fingerprint sensor does not work. Previous screen worked fine for that. I removed previous fingerprint data, rebooted the phone and tried again. It tells me to cover the area. I have a big thumb, it is covered and damp or dry. There is no screen protector. The fingerprint test indicates DBASE_CAPSENSOR_CHECK failed and reads 0850 to 0890 and should be above 2500. All other tests pass.
Every other post I find indicated DBASE_CAPSENSOR_CHECK and DBIAS_TUNED_DBIAS_VOLTAGE are 0, so it isn't the same issue.
Is it a hardware issue or something else?
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a month ago in
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a month ago in
Galaxy S21wouldn't that produce 0 for the CHECK and maybe even the VOLTAGE?
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a month ago in
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a month ago in
Galaxy S21Cleaning won't change the test results for the CHECK function, now will it?
Yes, my face recognition works fine along with the PIN.
Paying for a diagnosis is and having it "fixed" with another screen is not on my todo list.
If it is a bad screen, I need to return it.
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a month ago in
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a month ago in
Galaxy S21the sensor wires run thru a single display flex cable and the display is fine.
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a month ago in
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a month ago in
Galaxy S21Did you run a diagnostic for the fingerprint? There isn't anything that will come off here. Corroded maybe. The connector on the right is the display connector. About the only thing I can do is move that block with the QR code around a little. It will move the flex in that small connector some. I will try that, but I doubt it will do anything.