ideviceinstaller fails with "Could not connect to lockdownd. Exiting."

[prezihomework]

When I try to use ideviceinstaller, the command fails with the following error message:
"Could not connect to lockdownd. Exiting."

Example commands:
ideviceinstaller -l
ideviceinstaller -i Something.ipa

I have googled more than an hour to find the solution, however nothing worked for me:

• Reinstall ideviceinstaller
• Reinstall libimobiledevice
• Reinstall brew and reinstall again both ideviceinstaller, libimobiledevice

It works only if I use sudo but it's unfortunately not acceptable in my case.

System paramereters:
MacBookPro with 10.11.5 OSX El Capitan
Target devices: iPhone 5, iPad 2

Note:
I have installed both Xcode 7.3.1 and Xcode 8 beta 3 on my computer. And used these commands to switch between them:
sudo xcode-select -switch /Applications/Xcode-beta.app/
sudo xcode-select -switch /Applications/Xcode.app/

[renatosc]

same here.

[linkin-xiao]

I meet the same problem, and I guess it's the Xcode 8 lead to this, because I installered Xcode 8 yesterday!
And before that I use ideviceinstaller a lot time!!!

[zhaohanzhiyou]

Same here.. Anyone has any clue? I already uninstalled the Xcode Beta but still not working. THX

[rohitgargfzr]

I am also facing same issue, can somebody please help?

[irodkin]

Look here: #47

[prezihomework]

Thanks KorranForce!
This solution worked perfectly:
sudo chmod -R 777 /var/db/lockdown/

I am closing this ticket then.

[mi2pankaj]

This works Thanks

[vchimev]

If the suggestion above doesn't do the trick, here is an alternative:

brew uninstall ideviceinstaller
brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo chmod -R 777 /var/db/lockdown/

[pellet]

I need to run this chmod command on each reboot, is there a way around this to have the permission ok across boots?

[pragpatel]

If the suggestion above doesn't do the trick, here is an alternative:

brew uninstall ideviceinstaller
brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo chmod -R 777 /var/db/lockdown/

This one really works

[ankitguptatest]

Still didn't work on any above options

[Winning117]

If the above doesn't work I was able to get it to work by doing the following:

First disconnect all iOS devices then run this:

brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo rm -rf /var/db/lockdown/*

Plug your iOS device back in and wait for the "Trust" prompt to pop up. Click "Trust" and then run sudo chmod -R 777 /var/db/lockdown/. That solved it for me.

Source: https://stackoverflow.com/a/48694852/7487335

[jiaxw32]

If the suggestion above doesn't do the trick, here is an alternative:

brew uninstall ideviceinstaller
brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo chmod -R 777 /var/db/lockdown/

great ! work for me.

[harrain]

If the above doesn't work I was able to get it to work by doing the following:

First disconnect all iOS devices then run this:

brew uninstall libimobiledevice
brew install --HEAD libimobiledevice
brew link --overwrite libimobiledevice
brew install --HEAD  ideviceinstaller
brew link --overwrite ideviceinstaller
sudo rm -rf /var/db/lockdown/*

Plug your iOS device back in and wait for the "Trust" prompt to pop up. Click "Trust" and then run sudo chmod -R 777 /var/db/lockdown/. That solved it for me.

Source: https://stackoverflow.com/a/48694852/7487335

Excellent! This is working!