1403 iOS5 error

I got the same problem (err 1403), tried everything from disconnecting all USB devices, security software, restore instead update, etc. but nothing worked. Called the Express Lane, he didnt know what it was and I'm still waiting for a solution. Frustrating!

Hi same here tried all the same a t least 15 times - always the same error code 1403. Frustrating!

Same problem here... The same error on mac and pc.

I had the same issue guys, and the only way i found to fix it is to plug it into another PC/ mac, download/restore on that, and then download your things from your own itunes when it is upgraded. I hope this helps.

Yes, I got the same suggestion from the Express Lane. They suggested to try this first from another/new user account on the Mac. If that didn't work then to try on another computer. Haven't tried it yet tough.

The bad news is that if this worked only on another computer, then it would mean that the Mac has a problem and has to be repaired; so they said.

Well thats what i found in my frustrating search for an answer, but im afraid that you are right. Although, the 1403 error did apear on both my MacBook Pro and my Windows PC. Sorry i cant provide an exact answer, but for a short term fix, i reccomend plugging it into someone else's computer.

Thanks for the answer. But in the long run that cannot be the solution! Or is that a business development effort to sell more computers to run the updates??? 😁

Haha, im not sure to be honest. All i know is its frustrating and a lot of users have the same problem! You would have thought Apple would have provided a better solution cause "unplugging all other USB devices" seems a bit lame if you ask me!

Well, the most ridiculous thing just happened since I started using Macs in 1985, I tried the iOS5 update from an old Win PC as you suggested, and it worked like a charm! :-s

same problem here. Have a Thompson Router, but to my knowledge there isn't any firewall built in. No Antivirussoftware installed, no firewall active. So i keep trying to download always the same answer : corrupted download. Hardware: MacBook Pro early 2011, OSX Lion 10.7.2, IPad2 WIFI/3G, Iphone 4.

Any good ideas ?

Hi glc_butterfish,

Same configuration here. After i tried to upload the ipsw file manually the Ipad crashed during the update process and I had to rest at with a windows PC ;-(. Via windows it just worked fine. My Iphone I haven't been able to update since due to the same 1403 error........disappointing.

Hello there

Did the download at my dads house and it worked, even with a slower connection. I guess it is the router (Thomson TWG87OUG). Back home there are somtimes software that wont download correctly in iTunes. Diasppointing, but I have no clue what it is. It doesn't work even with the ethernet jacked in.

I also hava a Thomson router but could finish the download on a Windows XP vmware virtual machine... so it ain't the router either. Strange problem still.

Switch off all firewall and anti virus programs on your PC and run iTunes as an administrator. This works for me to update my IPad with iOS5

i got the same problem with mine and i've tried the whole 'keep trying and it will work' thing and it just doesnt. i swear this is like the 20th time ive tried it and still nothing. i even went into the o2 shop to see if the guy had any ideas on it but he said he hasnt had anyone come in with that problem and i was to just keep trying, but it clearly isnt working!! so anyone else got any ideas as to what i could do?!