Sometimes device does not detect fingerprint hardware
I have fingerprint unlocking activated on my Sony Xperia z5, but sometimes when I press the power button and place my finger there, it shows on the screen "fingerprint hardware not detected". Sometimes It fixes after I spam the power button a few times. Other times that doesn't work , so I try to restart the phone and when the phone boots up, the fingerprint option in the security menu completely disappears! And obviously I can't use my fingerprint to unlock the phone anymore, till I restart the phone again to get it working, but sometimes the "fingerprint hardware not detected" thingy would still pop up. Is this really a hardware issue or is this just a software bug? And is there an actual way to fix this easily? Thanks for reading this and please reply :D
Ist dies eine gute Frage?