The iOS 11 GM of iPhone 6 plus is exactly the same as the md5 of the official installation package
Ditto:
Chens-MacBook-Air:~ chen$ md5 / Users/chen/Downloads/iPhone_5.5_11.0_15A372_Restore.ipsw
MD5 (/ Users/chen/Downloads/iPhone_5.5_11.0_15A372_Restore.ipsw) = 0473f217af0f20e138649385de6db6c7
GM version of md5
Chens-MacBook-Air:~ chen$ md5 / Users/chen/Downloads/iPhone_5.5_11.0_15A372_Restore\ (1\) .ipsw
MD5 (/ Users/chen/Downloads/iPhone_5.5_11.0_15A372_Restore (1) .ipsw) = 0473f217af0f20e138649385de6db6c7
The official version of md5
There is no need to bother with the GM version already. My iPhone6plus upgraded GM the day before yesterday. After one day's trial, the stutter feeling is obvious and has been returned to 10.3.3. If you don't feel stuttered, you can wait until the boot time is a little longer, and the frame drop is very obvious.
Personal experience, for reference only
