A minor patch is being released to address some minor bugs with the 1.2 release. As with all firmware updates, this will be automatically downloaded by the Connectivity Kit. However, the update process from 1.2 to 1.2.1 will be much smoother with the USB fixes implemented in 1.2.
This maintenance release of the Prime Calculator firmware and associated PC software delivers fixes to outstanding issues. This document is not a complete list of all changes, but highlights specific items. All users of the HP Prime calculator are encouraged to upgrade for the best possible experience.
I found a new bug in this Firmware. When I follow the steps for Hypothesis Test Z-Test on page 285 (german language) and enter the data xbar=0.461368, n=50, µo=0.5, σ=0,2887 , α=0,05 and then calculate. The values are OK but in bottomline the Status is not OK.
"Unmöglich: zurückweisen von H0 bei α=0,05"
"Ho bei α=konnte n. zurückgewiesen werden 0.05"
If I use the virtual calculater Softwareversion 2013 8 13 it works like in the Manual.
And it Looks the same with the other tests.
A (major) update for the manual will be coming soon, as some things stated there are no longer in line with the current firmware..
UPDATE 8-3-2016: According to HP Calc team, this is expected end of April.