Somethings you can't make up! I've developed a system using ASP.Net and VB.Net and it works fine on a PC or Apple Mac. It also works ok on my iPad 4 with iOS 6.1.3.
But the sub-menus don't work on my client's Samsung tablet - when you hit a menu with a sub-menu, the sub-menu displays briefly then disappears.
So she bought 3 second-hand 1st generation iPads. But these have iOS 5.1.1 and would you believe it but Safari and Chrome have the same problem when it comes to ASP.Net sub-menus on iOS 5.1.1, although apparently this problem wasn't present on iOS 4.
So I thought I'd see if it possible to do an upgrade to version 6, but the highest available version for iPad 1's is 5.1.1, and then I thought how about doing a factory reset back to the original iOS 3.2 or 4, but no, Apple don't allow that.
So now she's stuck with 3 old iPad's that can't go backwards or forwards, and which can't run my app.
Any ideas, please, either on how to solve the sub-menu problem or how to downgrade iOS?