What’s a new camera release without a scandal? I have been using my X-Pro 2 consistently since receiving it Friday and have only experienced ONE camera reset while using a fully charged official Fuji battery my first time shooting. This was a foreseeable possibility since the launch date was delayed by about a month.
Fuji clearly warns against leaving the camera without a battery for too long, and the delay might have caused the reset issue that SOME of us have experienced. There have been plenty of users reporting a trouble-free shooting experience. The reason for this should be obvious, too. They received a more recently manufactured camera.
The vast majority of people should be okay if they leave a fully charged official Fuji battery in their camera for a while because 3rd party batteries vary greatly in quality. I think the problem has been blown way out of proportion because the likelihood of having a fully charged 3rd party battery sitting around is higher than that of having official batteries due to the substantial price difference. Battery variation might not matter in daily usage, but it could affect the charging of the internal X-Pro 2 components. Only time will tell.
Customers who have experienced the reset issue multiple times might have a different issue than the rest of us, though. The internal component meant to hold a charge might have been damaged due to the delay or during production. It’s also possible they might be using too many third party batteries. Not enough is known about these people at this time to make an educated guess.
I do not think this is a firmware issue, but Fuji probably could address the problem by changing how they store settings in firmware. They might have a reason to store these settings in volatile memory for speed, but they could back them up when changes are made and then check the backup against the volition memory when the camera turns on to prevent the settings from getting reset, but this might slightly delay startup. Whatever the problem, I trust Fuji has their reasons, and I think people should not call complicated electronics defective so quickly.