BenQ W5700 / HT5550 4K 100% DCI-P3 Projector Announcement and Owner’s Thread
If I can weigh in on this firmware debate...
There are two different firmwares that can be upgraded on the HT5550 (and the HT3550 for that matter). There is BenQ’s operating firmware, which IS user upgradeable, and there is an underlying firmware that is part of the Texas Instrument chipset, which is NOT. In theory, the underlying TI firmware never need be touched. However, BenQ made a change post launch to address owner concerns about iris pumping or “flicker” that required an update to the TI firmware. My suspicion is this is due to the iris being tied to Texas Instrument’s ‘Dynamic Black’ feature baked into the TI chipset (BenQ has long used their own dimming / dynamic contrast algorithm in the ubiquitous ‘Smart Eco’ feature).
It’s not convenient, for sure, but I’d rather BenQ address the issue. They obviously tested the product ahead of release but there is no way they could have accounted for the volume or breadth of content owners would subject the iris to. These are the very first 4K DLP models to be equipped with an active iris and manufacturers haven’t had the years to refine the feature like the competition in 3LCD and LCOS.
What to do if you find yourself stuck with no hope of rescue:
Consider yourself lucky that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your present circumstances seems to be more likely, consider yourself lucky that it won't be troubling you much longer...
-- Excerpt from the Hitchhiker's Guide to the Galaxy.