https://www.cnet.com/news/has-apples-iphone-ipad-hit-a-wall/

One of Apple's key suppliers is calling for a rough next few months. 

TSMC, the Taiwanese semiconductor giant responsible for building the chips that go into Apple's iPhones and iPads, warned that its upcoming second quarter would be worse than expected due to "continued weak demand from our mobile sector." That's in spite of the fact that there's an uptick on demand for more powerful chips for cryptocurrency mining.