iTunes to iPhone "Unknown error 0xE800007F"

Same thing. iPhone4S and iPad 2 with WIFI sync turned on. iTunes 10.5.0.142 on Windows 7 Home premium 64-bit

Could this be related to passcode locked ios devices? I saw several errors in itunes but then I cleared the errors and unlocked my phone and it synched.

@Subw00er,

No, sadly it's not exclusive to passcode locked iOS devices - I have an iPhone 4S which is not passcode locked and suffers the same problem multiple times a day. (Windows 7 Ultimate 64-bit)

I can sync the phone, but iTunes is clunky and regularly hindered by the pop-up error message described by the original post.

I wrote on October 18, after having experienced this error.

But I haven't seen a problem lately. I just sit down at my Mac, select my iPhone in iTunes and click Sync. It's been working fine for several days now.

I almost never plug my iPhone in to the wall, so I don't know how that process works.

Same issue for me, it bother me alot.

same issue 0xE800007F , 4s, win7 64bit, itunes 10.5, constantly getting the same error with wifi sync, after 2 days of leaving itunes open i have about 10 of these same messages qued up waiting for my attention, wifi sync will still work if i try it a few times manually, but it wont sync by it self as it should...

I'm going to throw a curve ball, I've had this error and I don't have an iPhone. I do have an iPod Touch 4G, and my brother was not home at the time it came up. He owns an iPhone4.

Compaq Presario CQ61 laptop with AMD dual core CPU 2.2Ghz, 4GB RAM, Radeon Mobility graphics.

Weird

For the first time, I've today seen this error occur on my wife's PC and relating to her iPod Touch running iOS5. She doesn't have an iPhone. That PC is 32 bit Windows 7.

I just got my iPhone 4s and noticed the same problem and my phone is not plugged into my computer. It is sitting on my desk. Any solution yet?

I may have a solution; hopefully it's not too early to tell but it's been a few hours and still going all right.

I am using Win 7 64-bit, an iPhone 4 and an iPad 2. The problem was mainly with my iPhone 4 over WiFi sync, though eventually became a general problem syncing the iPhone even via USB. My iPad sometimes had issues as well when backing up - something about not being able to find the backup drive or volume.

Anyways, went to Control Panel and uninstalled iTunes, QuickTime, Bonjour, and Bonjour Print Service. Then rebooted. Then downloaded a fresh copy of iTunes and reinstalled. Then rebooted again. Now everything is cool.

Fingers crossed it sticks!

Same error message here with the iphone but not ipad2

iPad2

iphone4S

Windows XP SP3

Airport Extreme Router

iOS 5.0

iTunes 10.5.0.142

When the phone is out of range and then brought within range I get the popup box and error message. In general its iTunes wifi sync is not stable and after quitting and restarting iTunes, it may work for 1-2 syncs before having to quit and restart again (or restart the computer) to find the devices.

Mac OS X Lion users, this worked for me--let's hope it does for you. In iTunes Preferences, under the device tab, I had previously checked the box that says "Prevent iPods, iPhones, and iPads from syncing automatically." Once I [UNCHECKED] this box, everything worked! No guarantees that it's a universal fix, but it worked for me. Good luck.

I think the issue is caused by iTunes trying to initiate wifi sync with the iPhone. Wifi sync is only done when the device is connected to power unless manually initiated from the settings menu; so when you start iTunes with your phone on the wifi network but not connected to power, iTunes will try to initiate sync but since the phone isnt plugged in, you get the message. It will happen if your phone leaves the wifi and returns as well.

Plug in your device and iTunes should automatically sync. If it doesnt work, try restarting iTunes.

I don't think that's right. iTunes does not attempt to sync if your phone isn't plugged in to power. It even says so in Settings>General>iTunes Wi-Fi Sync.

been there, done that, still getting error. i'm looking for a replacement for itunes. tired of the cryptic error messages and the ****** video playback.