I just got this phone for my birthday and am pretty pleased with it.
That was until I noticed that after I had locked the phone using the power button, I would get a few vibrations from the handset.
When I looked at the screen, it said "too many attempts" as is I had tried to unlock it using the fingerprint scanner.
This now happens frequently (3-4 times a day).
At other times, when I try to unlock the phone, the fingerprint scanner doesn't respond to any interactions.
This forces me to press the power button to wake the phone and proceed to unlock it with my pin code.
After I have unlocked it with my pin, the finger print scanner begins to respond to interactions again, as if the scanner itself was in a "sleep" mode.
So far, I've tried rebooting the handset, cleaning the scanner, ensuring the leather case has no debris interfering with the scanner and the phone's back-cover is free from dirt and anything that could obstruct the scanner like stray hairs. I've also deleted the original fingerprints and set new scans.
Is there anything I can do (without voiding my warranty) before sending the unit back to my seller?