It should update to 5.0.1. You can try to sync and backup and then restore. Apple no longer allows restore to 4.X versions, so you'll get pushed over to 5.0.1.
Once restored, set it up from the backup you created before and you're fine
The first part (right click, backup) you did right.Thank. It sill has 4.2.
I connected the iPad. Waited for sync. Right clicked on the device and selected backup. Then I right clicked on the device and selected restore from the backup. After restore, iPad restarted but it still has 4.2.
I'd suggest NOT updating the iPad 1 to iOS 5. I did and really regret it. Stay with 4.3.x. Why?
iOS 5 seems to be made for the dual-core A5 processor and its larger amount of memory. Typing on the iPad 1 on iOS is difficult since it's not as snappy and quick, and overall feels slower. My iPad 1 constantly crashes.
There are many documented threads here and elsewhere complaining of Safari constantly crashing under iOS 5. The crash logs contain many instances of low memory errors. Not heavy-duty tasks, just reading Macrumors will crash it.
I had decided to sell my iPad 1 until I was able to roll it back to iOS 4.3, and I love it again. It's fast and does not crash, and I didn't lose much for functionality.
The first part (right click, backup) you did right.
But what I said was not "restore from backup". Was "RESTORE". Which means, plug in, click the iPad and click "Restore" in the summary section.
Restore = Format and restore OS.
Restore from Backup = Just restore my files to what it was last - which does nothing if you just backed up
Thanks. My bad.
But now I have second thought about upgrading to 5 after all the things I read in this thread.
I'd suggest NOT updating the iPad 1 to iOS 5. I did and really regret it. Stay with 4.3.x. Why?
...
Upgrade mine in Nov. don't have any problem so far, it works fine.
I really like the Multi-Touch Gestures on iPad.
How did you get Multi-touch gestures on an iPad 1?
5.0.1 re-added gesture support for the original ipad.