Scotty, who runs the excellent Strange Parts YouTube channel, went to Shenzhen, China to upgrade the memory in his iPhone 6s from 16GB to 128GB. “I’ve been hearing for several years that this was something the repair shops here in Huaqiangbei could do,” he says, “and I’d even seen one do it to a friends phone, so naturally, I had to learn how to do it myself. It was harder than I thought.”