The iPphone 6S is on:
1. Airplane Mode
2. Turn Off Touch ID and Passcode,
3.Turn off Auto-Lock
After some tries I will reboot
Each session:
It slow down at 6/9,
the application will show "Not Responding" in the application tab, but wait and let it run (for a ... while),
The big wheel will stop spinning in some occasions but the cursor become a wheel will still spin,
Finally it will reach and finish 9/9 + finishing and an error message
After 10 try I stop, I got 2 different messages:
Install failed!:
ERROR: Install failed. Got error "APIInternalError".
And
Install failed!:
ERROR: Install failed. Got error "ApplicationVerificationFailed" with code 0xe8008017: Failed to verify code signature of /private/var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.oT22iw/extracted/Payload/electra1131.app : 0xe8008017 (A signed resource has been added, modified, or deleted.)
I wish I have a Mac to try and confirm if it work but I can't at the moment