Tethering by hotspot via USB IOS9 and Itunes 12.3

The ONLY fix that worked for me was restoring an old AppleUSBEthernetHost.kext (in this case - one with timestamp Jan 09 2015) from Time Machine.

The faulty /System/Library/Extensions/AppleUSBEthernetHost.kext - installed after iTunes update to v.12.3 - was from Sept 18 2015, 18:45 and did NOT update to newer one by reinstalling iTune 12.3.

NOTE: All this time I had WiFi tethering working fine.

I tried everything else I found (see list below) and it did NOT work:

- deleting and reinstalling iTunes 12.3 (several times - in combination with the next changes)

- updating to latest iOS (9.0.1)

- manually deleting the kext file and reinstalling iTunes

- running "sudo nvram boot-args=kext-dev-mode=1" - rebooting after all of the above

- I did not try to install previous iTunes 12.x versions since Apple doesn't offer them and it is really dangerous to download them from unofficial sources (you can easily get a trojan this way). I see some guy in this discussion advising to follow a Russian forum how to install - probably pointing to mirky download source - I would never do that.

I tried to install the officially available 11.x iTunes version - but it warned that the iTunes Library format I have is newer and this 11.x version cannot use it.

My config:

- Mac OS X 10.8.5 (a bit old, I now, but I hear horible things about new versions and my particular model)

- MacBook Pro Retina 15" mid 2012 model

I had to run this command after installing the latest iTunes 12.3 download:

sudo nvram boot-args="kext-dev-mode=1"

This was based on a stackexchange post I read. I was confused as to why simply re-installing iTunes 12.3 latest did not fix the problem, since so many other people said it did. So when I found this command that was used to refresh the kext files based on the post below, I thought I would give it a try thinking that for some reason the 12.3 new files were not being picked up. I did and now it works.

From stackexchange post: http://apple.stackexchange.com/questions/206025/usb-tethering-gone-after-upgradi ng-to-ios-9-and-itunes-12-3

If re-installing iTunes 12.3 latest download does not fix USB Tethering for you, you should consider running this command and REBOOTING your machine. It worked for me:

Open Terminal, then run this command:

sudo nvram boot-args="kext-dev-mode=1"

Although kext-dev-mode=1 works for this solution, it also opens OSX to allow for any unsigned kernel extensions throughout the environment, which IMHO is nuts. Fixing by regressing to an older version of a signed file is a much safer solution until Apple fixes the issue.

How do you close it again? I have opened, and I may regret it 🙂

I don't have Time Machine, how can I get that file to replace mine?

Thanks!

Paco

Hello,

Try to install this kext:

https://yadi.sk/d/d_h2hW1cjNSbq

(from iTunes 12.2, packed to .zip archive)

To: Mvfx

Good point. Shame on me for trying something that I did not fully understand. What command do I use to reverse what I did with kext-dev-mode=1

What command can I run to get back to the way it used to be.

And, thank you for sharing your insight and opinion. Appreciate that.

The upgrade to OS X 10.11 fixed my usb hotspot issue after iTunes 12.3 from a few weeks ago caused it to stop working.

Just reverse it...

"sudo nvram boot-args=kext-dev-mode=0"

It appears that AppleUSBEthernetHost.kext is a different version in 10.11 when compared to 10.10 (both installed 1 October 2015; see below). There are also quite a few differences in the Info.plist as well as the actual AppleUSBEthernetHost driver.

--- version.plist.1010 2015-10-01 11:48:46.000000000 -0400

+++ version.plist.1011 2015-10-01 11:48:29.000000000 -0400

@@ -2,15 +2,15 @@

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">

<dict>

- <key>BuildVersion</key>

- <string>913</string>

- <key>CFBundleShortVersionString</key>

- <string>7.0</string>

- <key>CFBundleVersion</key>

- <string>7.0</string>

- <key>ProjectName</key>

- <string>AppleEmbeddedUSBEthernet</string>

- <key>SourceVersion</key>

- <string>133000000000000</string>

+ <key>BuildVersion</key>

+ <string>872</string>

+ <key>CFBundleShortVersionString</key>

+ <string>8.0.1</string>

+ <key>CFBundleVersion</key>

+ <string>8.0.1</string>

+ <key>ProjectName</key>

+ <string>AppleEmbeddedUSBEthernet</string>

+ <key>SourceVersion</key>

+ <string>133000000000000</string>

</dict>

</plist>

upgrade ur macboo to OS CAPITAN and all usb tethering will be working fine. I did it and now its all gud.

It did work for me in El Capitan 😟 Any alternative solution?

Never mind!... I solved it:

You are a GENIUS and so easy to fix !!!!

Back to USB Tether at 30Mbps on 6PlusS love it

Thanks 🙂

The following helps me for OS X Yosemite 10.10.5

1. Download **fresh** copy of iTunes (v12.3 on 2015-10-11)
   > MD5 (itunes12.3~corrupted.dmg) = 1541add0f747fcf9e5b30993f8929091
   > MD5 (itunes12.3.dmg) = 77bad7ebb366433672169d40c5659224
2. Exit from iTunes application
3. Start Terminal application and execute:
   > sudo rm -rf /System/Library/Extensions/AppleUSBEthernetHost.kext
   > sudo rm -rf /Applications/iTunes.app
4. Install iTunes.
5. Enable "Personal Hotspot" in iPhone and connect it with cable.

After this actions the interface "iPhone USB" appears in the list of the network services in the system settings. And tethering starts working.