Repairing an iPhone could be about to become much more affordable — and better for the planet, under new plans announced by Apple. For the first time, the Californian company will allow iPhone owners to repair their devices with genuine, used parts as part of a major shake-up to its repair scheme. Until now, using a second-hand component in a repair would trigger a warning within iOS stating that Apple could not verify the replaced part. In the case of some critical parts, like Face ID or Touch ID sensors to unlock the handset or verify contactless payments, the part might not work at all. Thi…