iPhone is not sewn, error (16)
If iPhone can not sew while iTunes is an error (16), the probability of serious hardware problems with the device. In particular, this error occurs when the device is faulty radio or checksum serial number and IMEI numbers are not the same (this option at the moment is typical for iPhone 4 and iPhone 4S ipone 5 iphone 5s and iphone 6, which were restored in the factories in China and are sold under the brand name or Refurbished or as new - it all depends on the conscience of the seller).