Yes agree that observation. Within apps like Dashlane and the like, the fingerprint is 100% working. In my experience. Very solid.
It is only on login to the phone itself (or to open the HW itself) that there is a struggle which is at least 1 in 10, can be more.
Understand comments from users about wet thumb or sweat. There does not seem be an obvious correlation between what I am doing and those conditions but could certainly understand that could be a limiting factor and will watch for that.
It does seem to be a parameter of the phone itself. The failure (when it occurs) is too solid. There is no evidence of trying, just no logon. And eventually a return to PIN access.
In contrast the wife's old Z5, works 99 times out of 100.
Only other condition is that it is housed in the new standard Sony case but there is no obvious impediment that I can see the case making that would come anywhere near close to causing a problem.
I does feel like a S/W issue that might warrant Sony taking a look at. A timing issue? A background process (less likely), something going into a sleep cycle? Maybe's. Hopefully Sony will take note and take a look. The overall phone is performing very nicely. Small predictability issues like this should be jumped on quickly to keep confidence in an excellent new device (and indeed market enthusiasm for a new flagship Sony phone) high.
or wet or sweaty fingers it works well.
