USB connection problem with iPhone

"Craig Clifford



Rep: 985




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"This command solved my problem. However, I would suggest that for those with little knowledge of Mac, please do the following steps:

1- Go to Application

2- Go to utilities

3- Go to Terminal

4- copy and paste this command in full : sudo killall -STOP -c usbd

5- press Enter

6- It will prompt you for your password, and type your password and hit enter

7- connect your iPhone to mac

8- The problem should be resolved

Best of luck"

I had the same problem. The problem is caused by cache and directory issues with the startup disk. BOOTING IN SAFE MODE SOLVED IT. Boot in safe mode (hold down shift key immediately you power the macbook, keep holding it until you see the login screen). To confirm that you are in safe mode (safe mode should be written in red at the top right corner of the login screen). Login, plug in your iphone and the problem is solved. To confirm that the problem is solved, leave safe mode by just restarting the macbook normally (without holding shift). Sorry for the late response. THIS IS A 100% FIX

i have the same problem but a non-Apple lightning cable worked for me! original apple cable won’t stop disconnecting.

"This post is pretty old but I was about to buy the USB charge doctor to check mine but a coworker suggested I try resetting the SMC on my mac and that fixed it in less than 5 mins. So anyone that’s still dealing with this should try that before buying something to check their USB ports. Here are instructions.

http://osxdaily.com/2010/03/24/when-and-..."