Remember Apple’s China problem? If you don’t recall, it was a huge problem. In early 2021, savvy sleuths noticed that iPhone sales were up a ridiculous 155 percent in January, then up a recursively ridiculous 320 percent in February. Great news, right?! Wrong! Why? Because sales were then down in March. Down 10 percent. Huge problem. Forget January and February, what have you done for us lately, Apple? As in within the last several weeks. Preferably the last five minutes. So. Well. Things looked dire indeed for our company in Cupertino. A slowdown was surely on the way. March wasn’t the glitch…