On seeing JailBreakMe has released a new version – which allows me to upgrade to the 4.3.3 firmware – I thought I’d update my iPhone4 – but annoyingly kept getting the following error message (whether doing an update or a full restore) :
“The iphone could not be restored an unknown error occurred 1013”
In my case, the fix was to edit /etc/hosts (OSX) and comment out / remove an entry for :
I have a feeling this was put there by TinyUmbrella or something, but nevermind. It works now.