Hi,
Just got a new one.five and am poking around website to see what I can find. Read your post about date resetting. I assume you mean firmware version 2.7 not 1.7 That is what I have on mine with the april 2018 date. I just tried taking my battery out counted 10 and reinserted – no date reset = all fine. admittedly battery is currently well charged but it appears to be a problem with you camera rather than the firmware
