Suck on Recovery Mode on iPhone 5s
iPhone 5s, iOS 9.1, Suck on RM
Hello JamesSwordOnline,
Thanks for using the Apple Support Communities!
I understand that your iPhone is in recovery mode and you can neither update or restore it and receive an alert displaying an unknown error (17). I know that situations like this can be both frustrating and concerning, but I want to assure you that we are here to help.
This alert that you are receiving does have some specific troubleshooting that I would suggest working through. The following article outlines the steps to take to resolve this issue.
Have a great day!
Suck on Recovery Mode on iPhone 5s