USB tethering lost after installing iphone configuration utility

iPhone USB Tethering suddenly stopped working

Having compared two machines, (one updated the other not) the update of iTunes to 10.7 and now iTunes 11 installed an AppleUSBEthernetHost.kext version 2.3.6 and in the process messed it up.

You need to replace this kext with a good version or an earlier working version.

To do this, download KextUtility and install it, then drag the old working kext onto the KextUtility icon, it willreplace the broken version and fix any other permission issues in your Syst/Lib/Ext folder.

http://mac.softpedia.com/get/System-Utilities/Kext-Utility.shtml

http://cvad-mac.narod2.ru/Kext_Utility

and the working kexts (if you can't find it on your time machine backup)...

Version 2.2.0 (Working on 10.6.8) http://db.tt/Fahk9VBe

Version 2.3.6 (Working on 10.8 & 10.7) http://db.tt/U674UcOV

Nice one Apple, thanks for wasting a few hours of my life, AGAIN.

It's not acceptable that having identified this issue, Apple haven't made the correction on iTunes 11 !

Thanks you very much Hibernian56 for this solution.

https://discussions.apple.com/thread/3810527?answerId=20078819022#20078819022

Denis

Thank you very much, this information helped me a lot.

By the way, I have an other issue:

On my iPhone(4GS, v6.1.3) the flagged emails in subfolders do not appear in the flagged folder.

http://discussions.apple.com/thread/4683909

Do you by chance know if this behaviour can be changed so that all flagged mails will show up?

Thanks again

Joel

UPDATE 2:

Okay... Apparently there were 2 versions of iTunes 11.4 and software update could differentiate between OS X 10.6.8 and 10.7+ when it downloaded iTunes to them??? I'm making this assumption because apparently the day after I allowed software update to reinstall iTunes 11.4 on my newly upgraded MacBook Pro from Snow Leopard to Lion Apple came out with iTunes 12.0.1. I only came across this because DopeyDupe's amended fix in fact DID NOT work after I re-downloaded 11.4 on Lion. So I hit the Google trail once again and ran across this Apple Support thread:

system extension cannot be used AppleUSBEthernetHost.kext

A couple of suppositions stood out in my mind. First, the main theme of the thread was to solve the issue by deleting the AppleUSBEthernetHost.kext, reload iTunes 11.4 via the downloaded version of iTunes, and restart. Second, Greg Earle on page 4 of that thread discloses that he discovered that "the new iTunes 11.4 version of the AppleUSBEthernetHost kext appears to be 64-bit only." So I went to the Apple Support Downloads page to download version 11.4 to try this fix and low and behold I discovered this:

Apple - Support - Downloads

iTunes 11.4 for OS X 10.6! When I was using 10.6.8, this is the version I must of downloaded and the kext replacement worked with this version. However, after I re-downloaded 11.4 on Lion the kext replacement did not work. So therefore Apple must of been distributing two versions of 11.4. I'm guessing a 32bit and 64bit version??? Whether this is true or not obviously I don't know. However, after I downloaded iTunes 11.4 for OS X 10.6, deleted the kext file and iTunes (http://osxdaily.com/2012/02/06/delete-itunes-mac-os-x/), reinstalled iTunes with the downloaded installer, and reloaded Fab11's kext download I once again was able to tether my iPhone to my MacBook via USB.

I've faced the same issue, upgrading to iPhone Configuration Utility v 3.5 has killed my USB tethering, however it works fine on another macbook which does not have v 3.5 iPhone Config Utility...This *****!! I don't want to use Bluetooth as USB tethering is much faster!

Having a simlar issue on both my iphone 3Gs and 4s since update to 5.1 iOS. MBP lion 10.7.3

I just tried to update the iPhone Configuration Utility V3.5 (289) but seems it the same as what I had before despite apple site having a date 16 Mar 2012

I get BT PH ok and wifi is visible and connects but no USB is listed in the netwrork selections nor can it be added it seems.

Will try on a machine without iPhone Configuration Utility and see if that works, or maybe an old boot drive on my MBP

Same issue here. iPhone with iOS5.1, another with an earlier iOS, USB tether works fine with Windows 7+iTunes, and with Ubuntu Linux, so the phone + cable combination is OK. The USB tether is broken in the 64 bit mode, but works fine in 32 bit.

Phone and USB tethering works fine on a different Macbook (Air, with the same version of Lion and iTunes)

It seems I will need to wait for Apple to release a patch to repair the damage that the iPhone Configuration Utility appears to cause to MacOSX Lion.

(I have an Apple support case 300626181 which ran through quite detailed testing of a number of combinations, but ultimately failed to resolve the issue)

I've solved removing iPhone Configuration Utility 3.5 (simply trash them), removing also:

sudo rm -rf /private/var/db/receipts/com.apple.pkg.iPhoneConfigurationUtility.*

rm -rf ~/Library/Preferences/com.apple.iPhoneConfigurationUtility.plist*

After a reboot for safe to unload somthing related to iphone conf utility and I've restored this copying from another mac with same OS but no iPhone conf utility installed:

/System/Library/Extensions/AppleUSBEthernetHost.kext/Contents/MacOS/AppleUSBEthe rnetHost

Now USB tethering works. :-)

Fab11, can you please explain your solution more?

I ran those 2 lines of code in the terminal separately, and then rebooted, but am unsure of what you mean by the last step? USB tethering currently still does not work. Thanks.

I too did the same thing including renaming the original and copying the

/System/Library/Extensions/AppleUSBEthernetHost.kext/Contents/MacOS/AppleUSBEthe rnetHost

from another lion install without iPh Config and still have no USB tethering either.

In my case, after removing iphone conf utility I've seen that the AppleUSBEthernetHost file was smaller than the same file on the other host.

This is the bad file:

-rw-r--r-- 1 root wheel 52120 2 Feb 20:30 AppleUSBEthernetHost

And this the file on the other host:

-rwxr-xr-x 1 root wheel 180760 23 Gen 07:23 AppleUSBEthernetHost

As you can see, the size is different, four times bigger.

LewisClegg, you must copy /System/Library/Extensions/AppleUSBEthernetHost.kext/Contents/MacOS/AppleUSBEth ernetHost

from another machine to the machine with the usb tethering problem in the same location.

Fab11, after replacing my original file with your emailed one, I get this error message when I plug in my iPhone and turn on tethering:

"System extension cannot be used

The system extension “/System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update."

I noticed that in the Get Info for the file you sent me that under More Info it acknowledges in the Where From that you sent it to me and it says your name and email address. I removed this by duplicating the file. I also noticed, however, that it says my permissions are 'custom access', despite me unlocking it and setting every user's access to Read & Write. Any ideas?

Hi fab11, please, i also need the file. I make a mistake, i also replace "AppleUSBEthernetHost.kext" from a backup time machine and right now i have a problem with the permisions

Thanks!!!

javiertc949@hotmail.com

Hi. Thx fab11. Finally I managed to do it without the given file. My solution:

1. Delete iPhone configuration utility.
2. Do fab11's magic:

sudo rm -rf /private/var/db/receipts/com.apple.pkg.iPhoneConfigurationUtility.*

rm -rf ~/Library/Preferences/com.apple.iPhoneConfigurationUtility.plist*

3. Delete the whole folder: /System/Library/Extensions/AppleUSBEthernetHost.kext

4. Reinstall iTunes (just over the previous one)

5. Restart

Thak you very much fab11, i can´t repair jet, but i´ll try this night. I have problems whith your file, i don´t now why, the permission it´s ok, the error mesage also say me error whit the instalation, the size of my orginal its 52K and the size of your file is 133K...

Thanks