Apple’s iPhone 6 Plus uses chips from Qualcomm, Skyworks Solutions , Avago Technologies, and other companies, according to gadget repair firm iFixit, which pried one of the devices open in Melbourne early on Friday. Apple said it received a record 4 million first-day pre-orders for the new phones, double the number for the iPhone 5 two years ago, underscoring investors’ expectations the new handset will maintain the Silicon Valley company’s stellar growth.