How to I solve error 14 for iphone 6

Get help with iOS update and restore errors - Apple Support

https://discussions.apple.com/thread/5719576

Mine was as easy as using a different USB Port on the computer for the single device. I updated 3 iPhones and 2 iPads with this same port and same cable. 1 iPad constantly gave me a error 14. Upon troubleshooting in a PC the different USB port did the trick

did u fix it?