Dennis Koh's Blog

I once downloaded about 10-20 apps on my iPhone from Installous over wireless over a period of about 2 weeks without backing up (syncing with iTunes). When I finally decided to do a backup, something happened. As it was syncing and about to finish, someone called me and the backup was interrupted. As the files are all rather big and it will take a while to backup, I figured out that I should put my iPhone in airplane mode before syncing so as to prevent any interruption.

Go to Settings > Airplane Mode > On. You can also do this if you would like your iPhone to search for network without restarting your iPhone. Just switch on and off airplane mode and it will automatically search for network signal.