Trouble updating iphone 4 to ios 6
For example, some people have trouble connecting the i Phone to the in-car Bluetooth systems, or Bluetooth suddenly disconnecting when a call comes in, or sometimes the connection drops frequently.
Check the compatibility list of i OS 9 you will find that i Phone 4s and i Pad 2 are also supported by i OS 9.
And we also provided the i OS 10 problem list for i OS 10 users. Cellular data issue after i OS upgrade is also extremely common.
Must Read: Should I Update My i Phone/i Pad to i OS 12 To help you make a smooth upgrade and stay away from all kinds of i Phone i Pad update issues, here in this article we collect the most common i OS 9 problems and solutions. We have seen a few i Phone users complain about the Cellular issue, it is not working after i OS 9 update, but there is no problem with Wi-Fi connection. Generally speaking, there are two common ways to upgrade to i OS 9: update with i Tunes or OTA (Over the Air).
Hopefully someone will be able to help you with that part.
Even Apple revealed at WWDC that i OS 9 will only be about 1.3GB in size, it can still be a tough task for many 8/16 GB i Phone or i Pad users to free up that much space, especially if they’re not syncing to i Tunes to manage storage manually.
Or you can try again with these methods mentioned in this guide – How to Fix Software Update Failed Error, like, updating with i Tunes, upgrade with IPSW file, etc.
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I have been repeatedly trying to update my i Phone 4 to ios 5 from ios 4.3.5 via ITunes on PC (wifi / 3g dongle, running windows 7) but keep getting error messages about failure to connect to the apple server. Are connecting to the computer directly with the cable?