1.1.3 fails to apply: Update to iTunes 7.6 If you are experiencing an issue where the iPhone 1.1.3 fails to apply, either during an update or restore, with one of the following error messages:
“The iPhone “iPhone” could not be restored. An unknown error occurred (6).”
Try updating to iTunes 7.6 then running the update again. One reader writes:
“When I tried to update my iPhone this morning, the update failed partway through with the error ‘The iPhone “iPhone” could not be restored. An unknown error occurred (6).’ My iPhone was left in recovery mode. Every attempt I made after that to recover it ended in the same cryptic message. [After updating to iTunes 7.6] my iPhone is now recovered and reloading it’s entire contents. (The phone had been completely wiped by the failed update.)”
Another potential fix is to put the iPhone in recovery mode then restore it. Sound missing A number of users have lost sound output from their iPhones’ built-in speakers (earpiece and internal speaker) after applying the 1.1.3 update.
There are two potential fixes for this issue:
Turn your iPhone off then back on
Insert headphones into the audio jack and remove them then repeat the process (several tries may be required)Bluetooth device compatibility Some users have reported that certain previously compatible Bluetooth devices no longer work properly with their iPhones after the 1.1.3 update. Mail problems Some users are reporting that the iPhone’s Mail application is failing to download messages since the 1.1.3 update.
If you are experiencing this problem, try the following: Tap Settings, then tap Mail. Select the account with which you are having problems and delete it (via the “Delete Account” button at the bottom of the account screen) then re-establish it. Alternatively, try resetting network settings.