Unknown error 400 when updating apps through iTunes.

I have been getting an error message 400 when trying to update apps from the app store on my macbook. I can only update them from my iphone. I am able to purchase and download the original apps as well as music and movies. Are there any fixes for this issue? I do not have this problem on my imac.
Thanks

I had the same problem and after a full day on the phone with Apple, there was no solution. Then, I tripped over it! The issue was with a third party program that was supposed to be allowing all traffic, but wasn't. The program is NetBarrier and once it was removed and my MacBook Pro was rebooted, all was great. The iMac wasn't affected (in my case) because I never installed that program on the iMac.
I blogged it here: http://www.wickedblog.com/2010/03/23/itunes-wont-update-apps-itunes-error-400/. I hope this helps others avoid hours of searching.

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Error 3253 when updating Apps in iTunes

For a few weeks now, I can't update apps in iTunes on my iMac without having an Error 3253 : reinitializing of the connexion. The configuration of my Mac has not changed and I don't have this problem when I connect from my iPad or when I download on my Mac a new app.
I have checked forums about it but found no solution.
Could someone give me a solution ?
Thanks

I had this same issue and it ended up being a firewall on my router. Check out your firewall settings on 3rd party software you may have installed as well as your router firewall.

IPad app store "unknown error" message when updating app

iPad app store "unknown error" message appears when updating app

Kathryn,
Had the problem also. Found in the forums and it worked for me:
go to settings
go to app store or "store" on my ipad
click on the apple id
sign out
sign in, again with id and password
then do update.
Hope this helps.

Can't install or update apps through iTunes

Seems I can't install or update apps through iTunes. It keeps giving me error messages. I the only way I can get around this is updating through the App Store app on iPod touch. I think this problem started since updating to Lion.

What are the specific error messages?
This may help:
iTunes: Possible iTunes Store errors

Please help error -9808 when downloading apps in itunes store anyone can help me out

please help error -9808 when downloading apps in itunes store anyone can help me out

Click here > iTunes: Advanced iTunes Store troubleshooting
Then "expand" Specific Conditions and Alert Messages
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When updating apps in iTunes there is no more description what's "new in this version"...

Hi
I regulary update my collection of apps via iTunes on my Macbook Pro and then sync back to my iPhone and iPad. When I check out the website of a specific app (https://itunes.apple.com/.../app/.../id) in a browser or in the update tab on my iPad/iPhone I can find a description of what's new in the current version of the app. This used to be also a helpful feature in iTunes but it's gon with iTunes 11. Strange but when updating apps in iTunes there is mostly no more description what's "new in this version"...

I did download these. Tarascon Adult Emergency Medicine, Scanner 911, Angry Birds, Cut the rope, Epicurious, Home Away, Nike Running, etc...
I occationally sync it with my computer. I wonder if I can delete them from there?

Error 1004 when updating apps

error 1004 when updating apps

i had the same problem, error 1004 when updating apps from iPod. In case this solution doesn't work for you try this one i found in another thread
Go to Settings -> General -> Reset -> Reset All Settings
And confirm. This will not delete your personal data.
After these steps I finally was able to download pending updates.
Hope this Works for you aswell, good luck

TS3219 Is anyone receiving a "unknown error" message when updating/getting new apps?

Before and after installing the new update I started receiving an "unknown error" message when trying to update apps. I changed my password thinking that was it but I am still getting the error message.

Try signing out of your account, restart the iPad and then sign in again and see if that works for you.
Settings>Store>Apple ID - tap your ID and sign out.
Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
Sign in again -Settings>Store>Apple ID - sign in.
If that doesn't work either, reset your iPad and see if that helps.
Reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

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Hey everyone,
I'm getting an "unknown error." when I'm trying to login iTunes 11.
When I enter my apple ID and password I the same window pops up again with "Unknown error." in red.
When I try to login again I get the popup with "Did you forget your password?" but I know for sure that I entered my password right.
Everything worked perfectly before.
The last app I downloaded was Real Racing 3 from the AU appstore. (with a second account, my main account is for the Dutch appstore.
Itunes 11
Mac OSX 10.8.2
13" MBP late '11
Thanks in advance,
Kevin

Hi and welcome to the HP Support Community.
Google account sync was disrupted by a change from Google; it was fixed with a patch as described here:
http://h30434.www3.hp.com/t5/webOS-Hardware-and-Software/ALERT-Google-account-sync-broken-on-webOS-d...
smkranz
I am a volunteer, and not an HP employee.
Palm OS ∙ webOS ∙ Android

ERR = 503 when updating apps in iTunes

When trying to download or updating apps in itunes(11.3), getting error message "503". Internet connection is working.

7/17/14 9:04:20.784 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2180]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:21.083 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2181]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:21.130 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:04:30.788 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2184]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:31.132 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2185]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:31.145 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:04:40.791 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2188]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:41.147 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2189]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:41.159 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:04:50.795 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2193]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:51.162 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2194]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:04:51.173 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:00.798 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2197]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:01.175 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2198]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:01.229 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:10.802 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2201]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:11.231 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2203]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:11.243 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:11.000 AM kernel: CODE SIGNING: cs_invalid_page(0x1000): p=2202[GoogleSoftwareUp] clearing CS_VALID
7/17/14 9:05:20.806 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2206]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:21.245 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2207]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:21.379 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:30.809 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2210]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:31.382 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2211]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:31.409 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:40.812 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2222]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:41.411 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2223]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:41.422 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:43.942 AM com.apple.launchd: (com.tether.tetherdaemon[2224]) posix_spawn("/Applications/Tether.app/Contents/Resources/TetherDaemon", ...): No such file or directory
7/17/14 9:05:43.942 AM com.apple.launchd: (com.tether.tetherdaemon[2224]) Exited with code: 1
7/17/14 9:05:43.942 AM com.apple.launchd: (com.tether.tetherdaemon) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:44.049 AM com.apple.launchd: (com.zeobit.MacKeeper.AntiVirus[2225]) posix_spawn("/Library/Application Support/MacKeeper/AntiVirus.app/Contents/MacOS/AntiVirus", ...): No such file or directory
7/17/14 9:05:44.049 AM com.apple.launchd: (com.zeobit.MacKeeper.AntiVirus[2225]) Exited with code: 1
7/17/14 9:05:44.049 AM com.apple.launchd: (com.zeobit.MacKeeper.AntiVirus) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:50.816 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2226]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:50.817 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2226]) posix_spawn("/Users/mpbruno/Applications/Akamai/netsession_mac", ...): No such file or directory
7/17/14 9:05:50.817 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client[2226]) Exited with code: 1
7/17/14 9:05:50.818 AM com.apple.launchd.peruser.501: (com.akamai.single-user-client) Throttling respawn: Will start in 10 seconds
7/17/14 9:05:51.424 AM com.apple.launchd.peruser.501: (com.akamai.client.plist[2227]) Bug: launchd_core_logic.c:4745 (26200):13
7/17/14 9:05:51.436 AM com.apple.launchd.peruser.501: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds

Update apps through iTunes

I have an iPhone 4 running iOS 5. My iPhone shows that there are updates for two of my apps. When I select Store > Check for Available Downloads in iTunes I get a message that says "All purchases have been downloaded for this account." How can I update the apps through iTunes?

John Link wrote:
I'm aware that I don't have the latest OS on my iPhone.
What I meant is that iTunes has the 2 apps already updated. You need to connect & select iPhone in iTunes and click the Sync button as describe above to update the apps on iPhone.
I want to avoid using 2.
Why?

TS3694 What is Unknown error 6 when updating iOS?

There is no information about "Unknown error 6" when trying to update to iOS 6.0.1 Any help would be appreciated.

Errors related to third-party security software
Error 2, 4 (or -4), 6, 1000, 9006
Follow Troubleshooting security software. Often, uninstalling third-party security software will resolve these errors.
There may be third-party software that modifies your default packet size in Windows by inserting a TcpWindowSize entry into your registry. Your default packet size being set incorrectly can cause these errors. Contact the manufacturer of the software that installed the packet size modification for assistance or follow this article by Microsoft: How to reset Internet Protocol (TCP/IP).
Verify that access to ports 80 and 443 are allowed on your network.
Verify that communication to albert.apple.com or photos.apple.com is not blocked by a firewall, or other Internet security setting.
Discard the .ipsw file, open iTunes and attempt to download the update again. See the steps underAdvanced Steps > Rename, move, or delete the iOS software file (.ipsw) below for file locations.
Restore your device while connected to a different network.
Restore using a different computer.

I am having trouble updating apps through iTunes, iTunes shuts down when I try to sync.

I am having trouble updating apps that I have on my iPhone through iTunes. I go through the update then when syncing I get an error message iTunes has to shut down. The only way I have been able to work around is to delete the app and download it again. If I don't do this the app says waiting on my iPhone.

I just got the same message myself. Which I have only had 2 times in three years, so I checked here.
http://www.apple.com/support/systemstatus/
There is an issue with the iTunes Store on Apple's end, so I assume that is why we cannot connect.

Issue with Updating Apps through iTunes

I have been having this issue for sometime now, and through multiple versions of iTunes. Whenever I open up iTunes and see that there are apps that I need up update, i'll click on applications, ill go and click update apps, I'll see the apps that need to be updated and ill click update. I put in my password, but when I do that, I get an error saying:
We could not complete your iTunes store request. There is not enough memory available.
There is an error in the iTunes Store. Please try again later.
Obviously I have enough memory and space on my computer, but not sure if this is an error with the store itself or with my computer some how. I can download new apps with out a problem, purchase anything and download anything through iTunes, even after that error pops up, but I just cant update any apps. I can update them on my phone, and if I sync my phone with iTunes, and then try updating apps that might not be on my phone when I updated them, it will work then. Not sure what would cause this, and its not that big of a deal, just an annoyance and something I find a bit odd.
Thanks for any info and advice.

What part of no wifi did you not understand?
I'm well aware that I can update through the app store, if you had read the original question properly you would see that.

Unknown error occured when updating my ipad to ios 7.0.6

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Please help me!!

iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
Update and restore alert messages on iPhone, iPad, and iPod touch
http://www.buybuyla.com/tech/view/012953a0d412000e.shtml
iOS: Resolving update and restore alert messages
http://support.apple.com/kb/TS1275
iPad: Unable to update or restore
http://support.apple.com/kb/ht4097
iTunes: Specific update-and-restore error messages and advanced troubleshooting
http://support.apple.com/kb/TS3694
If you can’t update or restore your iOS device
http://support.apple.com/kb/ht1808
 Cheers, Tom

Unknown error 400 when updating apps through iTunes.

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