Trusting my computer with my iPhone no longer unlocks it for access (iPhone 5 w/iOS10, and Mac OSX 10.7.5)
It appears the contents of
/var/db/lockdown
a folder on your mac, are corrupt.
First, unplug your iPhone or iPad.
Quit any apps that try to communicate with the iDevice e.g. Photos, Image Capture, iTunes, PhoneView, iMazing, iFunbox or Dropbox.
Delete the files within /var/db/lockdown/ (not the folder).
Plug your iDevice back in.
The “Trust this computer?” dialog box should appear. Tap Trust on your iDevice.
The operating system should create new .plist files in the lockdown folder. Try reopening one of the apps that had the error.
I found this simple bypass bug trick that works for me using iOS 10.3.3 on iPhone SE while connecting to Mac OS X Lion 10.7.5 on a vintage MacPro:
- Do not connect iPhone yet
- Quit Image Capture (or similar) if running
- Unlock iPhone
- Connect iPhone with USB
- Click on "Trust" computer immediately (within a second)
- Start Image Capture (or application of choice) - if not set to automatically start.
I also tried @jasonology's method but found I had to erase the plists each time to make it work.
PS: On OS X 10.9.4 / iPhone SE 12.3.1I needed to disable the passcode on the iphone beforehand as well, probably to be able to go through the process of ‘trust this computer’ fast enough.