Saturday, October 27, 2012

iTunes could not connect to this iPhone. Could not allocate a resource.

Resetting the Lockdown folder can resolve issues with starting the backup session or saving the backup. If you can back up in a new user, do not reset the Lockdown folder. Issues with the Lockdown folder occur across all users; they are not user-specific. Follow these steps to reset the Lockdown folder:

Mac OS X

  1. Disconnect all iOS devices from your computer and quit iTunes.
  2. From the Finder, choose Go > Go to folder.
  3. Type the following and then press Return:
    /var/db/lockdown
  4. Choose View > as Icons.
  5. The Finder window should display one or more files with long alphanumeric file names.
  6. In the Finder, choose Edit > Select all. Then, choose File > Move to Trash. Enter an administrator password if prompted.
    Note: Do not delete the Lockdown folder itself. Delete only the files contained inside the Lockdown folder.
  7. Reconnect your iOS device and open iTunes.

51 comments:

Christina Clift said...

Worked perfectly! Thank you!

Derek said...

Agreed!

ElectroTech said...

Great help. Thanks for your service to the iPhone/Mac community.

Jen said...

Thank you! You saved me a trip to the Genius Bar!

HelpDeskGirl said...

OMG this was PERFECT. All of the other articles I could locate about this problem were horridly vague about how to resolve anything and assumed all kinds of knowledge and ability to navigate through Unix code. You made this quick and easy, thank you SO much!!

Luke Resch said...

This guy is a genius!

Brad Gatens said...

got it, thank you

Andreas said...

Awesome, worked! Thanks

Slodo said...

Worked for me! Thanks for posting this I thought I would never solve this issue.

TheThing said...

Thanks. I just received my new iMac and did the data transfer and suddenly the new iMac won't connect with my devices. Your fix was very simpl,straightforward and effective. Much appreciated.

festubert said...

Worked for me too - thank you!

Doug said...

Yes, and thank you! The problem arose fro me after migrating to a new MacBook Pro.

debmac99 said...

Brilliant! Worked for me, too. I also had the error message after migrating to a new iMac.
Thank you!

Fionn said...

Thanks soo much. Worked perfect!

Aditya Sehgal said...

Fantastic ! Thanks a million

Unknown said...

Thank you so much! I agree with every comment on this page, just wanted to add to it.

John said...

Brilliant thanks. So easy when you know how!

Bernadette Fisher said...

Thank you! Worked perfectly!

tammy said...

where is the go>go to folder?

Glenn Cormier said...

Done, simple and easy THANK YOU!

Marie-Andree Lessard said...

Awesome, thank you for this simple yet effective manoeuvre, much appreciated!

Humphrey Chen said...

thanks a lot! looks like this problem emerged for me while migrating from one macbook air to a new one.

Unknown said...

Thank you - that was wonderful and easy!
Another person who migrated from a macbook to iMac.

Sammystube5 said...

Nice, it worked flawlessly

Sammystube5 said...

Worked without a hitch, thanks

Sean Legister said...

Flawless, thanks for the help.

Sweet Fairy said...

Bu çok güzel ve mükemmel çalıştı olduğunu. Sizin ilham için teşekkür ederiz. ucuz iphone 4

BaritoneA2Z said...

Worked like a charm for me too!

Michael Rees said...

Well done sir

Alexis Goebel said...

thank you thank you thank you! why apple doesn't have this posted on its own site is beyond me. thanks!

Stefano Torrese said...

FUNZIONA!!!! GRAZIE!!!!!

Zeph said...

Thank you!

Cheryl Flatt said...

Thank you for such clear instructions!!

Alex Vehrs said...
This comment has been removed by the author.
Brett Tracy said...

It did not work for me :-(

Brett Tracy said...

It did not work for me :-(

Mikki said...

I had to empty the trash and restart the computer to get it to work.

Unknown said...

Thank you :D

I needed this after an iTunes update - refused to recognise my iPhone. This solution didn't work for me first time but after a restart it was all systems go :D

Thanks :D

Robin Begley said...

Looks like I am the only one who failed.

Tried this twice and still getting the error message.

DOH!

A Wells said...

Brilliant - was getting this message after migrating to new macbookpro. Fix worded - many thanks

Larry C. Price said...

Sorry to bust your track record...this didn't work in my case. I'm stuck.

mjweintr said...

This totally worked. Thanks so much!

Broccoli Boy said...

Genius! Thanks very much!

Kevin Cleary said...

Awesome!!! I called Applecare and they couldn't help but this worked perfectly!

Mona Costache said...

thanks

miguel figueredo said...

wonderful, worked perfectlu ... thank you so much

William Saint-Agne said...

For those that might have downloaded Cydia's "Wifi Sync" and cannot fix this problem, go to :
https://discussions.apple.com/thread/5452063

Hanno Kirchhoff said...

wow great, after update to new macbook pro that happened to me

Jamison Ward said...

This did not work for me.

Exta Saur said...

Worked!!!! Thank You!

Becky said...

Thanks so much! Worked like a charm!