Hello!
I have an iPad Air2 (64gb, WiFi) which is currently running on iOS 9.3.3. I connected it to iTunes and tried to upgrade to 9.3.4 which fails repeatedly giving Error 1403. Here is what I have tried so far:
1)
I tried to do the upgrade on three different computers (one Mac, two Win) using iTunes 12.4.3. ITunes downloads the file completely, then says it is working on the downloaded file, and then says the downloaded file is corrupted after download (err 1403). This happened several times and on several days.
I could upgrade an iPod touch (5. gen) and an iPad 3 on one of the computers in each network without any problems, thus the networking and iTunes seem to work correct.
2)
I tried to download 9.3.4 manually and install it. It went half way and then the iPad was stuck in recovery mode.
Recovering (and going back to factory settings) to 9.3.4 resulted in the above error
3)
I downloaded 9.3.3 manually and recovered to that. Now everything is running fine again.
Conclusions:
ITunes and my Network have no problem, otherwise the other devices would not have got the upgrade.
There is no hardware error in my Air2, otherwise recovery to 9.3.3 would not have worked.
Since I tried the download several times there is only very little chance that the file was really corrupted while downloading.
So what is wrong here? I have searched the net but not found any proper answer.
Thanks for any help!
A.Borque
PS: I needed to translate from german, so the actual messages provided by iTunes may be slightly different!
I have an iPad Air2 (64gb, WiFi) which is currently running on iOS 9.3.3. I connected it to iTunes and tried to upgrade to 9.3.4 which fails repeatedly giving Error 1403. Here is what I have tried so far:
1)
I tried to do the upgrade on three different computers (one Mac, two Win) using iTunes 12.4.3. ITunes downloads the file completely, then says it is working on the downloaded file, and then says the downloaded file is corrupted after download (err 1403). This happened several times and on several days.
I could upgrade an iPod touch (5. gen) and an iPad 3 on one of the computers in each network without any problems, thus the networking and iTunes seem to work correct.
2)
I tried to download 9.3.4 manually and install it. It went half way and then the iPad was stuck in recovery mode.
Recovering (and going back to factory settings) to 9.3.4 resulted in the above error
3)
I downloaded 9.3.3 manually and recovered to that. Now everything is running fine again.
Conclusions:
ITunes and my Network have no problem, otherwise the other devices would not have got the upgrade.
There is no hardware error in my Air2, otherwise recovery to 9.3.3 would not have worked.
Since I tried the download several times there is only very little chance that the file was really corrupted while downloading.
So what is wrong here? I have searched the net but not found any proper answer.
Thanks for any help!
A.Borque
PS: I needed to translate from german, so the actual messages provided by iTunes may be slightly different!
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