Some iPhone owners got a nasty surprise in February when, after bringing the device for repairs, they saw an ominous “Error 53†message upon restarting their phones. Translation: Your fancy gadget is now a glorified paperweight.After much confusion and hand-wringing in Apple circles, the company admitted that Error 53 was a sort of over-zealous security feature that kicked in when a non-Apple technician repaired the iPhone’s Touch ID feature.Apple aapl eventually issued a software fix that let people restore their device through iTunes, and apologized to users for the inconvenience. The company also said anyone who had paid out...