3rd Generation iPad update from iOS .3.5 to iOS10
I restored my 3rd generation iPad to factory settings recently. I could not re-download some apps because I currently have iOS 9.3.5. and apparently need at least iOS 10. I went to the preloaded "Tips" app and the very first tip says "iOS 10 is now available. To get new features-and new tips-upgrade to iOS 10. Go to Settings > General>Software Update.
When I do, I get "iOS 9.3.5 Your software is up to date."
I have google searched, and tried to manually download from iTunes, but have not been successful.
How can I update my software to iOS 10?
I would be grateful for any help. Thanks.
iPad (3rd gen) Wi-Fi