Qualcomm has kept quiet about the rumoured issues affecting its Snapdragon 810 processor, but confirmed during its earnings call that the 810 has been dropped by "a large customer."
The company has, according to Re/code, lowered its revenue outlook for the coming year. This is due to “expectations that our Snapdragon 810 processor will not be in the upcoming design cycle of a large customer’s flagship device” and because of increased competition in China.
Qualcomm did not specify which major customer is forgoing the option to include a Snapdragon 810 processor in its device. Speculation and reports indicate that Samsung will not utilise the chip in its Galaxy S6, going with its own Exynos chip instead. Naturally, Samsung isn't pleased with the reported overheating issues affecting the Snapdragon chip.
Meanwhile, Apple’s iPhone 6 and iPhone 6 Plus have surpassed expectations in China. The iPhones use Qualcomm’s modem chips, but not its SoCs.
We shouldn’t have to wait long to find out what major customer is choosing not to use the 810. Mobile World Congress at the beginning of March should provide us with some answers.