I'm not sure it was a smart move on the part of FiiO to try and work with someone like Optek, when Optek have much larger customers who will *always* be ahead of them in the queue. I'm not familiar with companies who would have been able to produce the SoC and firmware that FiiO required, but surely there must have been a manufacturer who are similar is size to FiiO that they could have worked with on a more personal level to produce something great, rather that waiting in a never ending queue with someone like Optek.
The few other SoC providers have problem of their own. Rockchip too has fairly poor firmware support, Sigmatel is simply out of option because their SoC doesn't even support the function X3 needed. Samsung and most of other big SoC maker are too difficult to approach due to the quantity of minimum order, plus they have very little presence in China local market. Optek looked to be a solid choice at the time because they already have proven product in the market. Again, the SoC from Optek works perfectly fine on the sample they showed to FiiO (which is a Phillips prototype I believe). The only problem is they didn't dedicate enough time in the X3 project to finish the firmware for FiiO. Instead, they kept asking FiiO to wait after they can finish up their project with their other much larger clients when they should have finished up FiiO's firmware first.
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