Can't use my iPhone 3GS for development after jailbreaking iOS 4.0.1

Question

Hi Guys,

does anyone has an idea why I can't use my phone for development after jailbreaking 4.0.1? I think I know why :) ... cause of the jailbreak but do you know how to enable the dev on it again without having to downgrade to 3.1.3? ... I need jb. because I've changed my provider ...

That's what my Organizer says:

The version of iPhone OS on “Ondrej's iPhone” is too old for use with this version of the iPhone SDK. Please restore the device to a version of the OS listed below.

OS Installed on Ondrej's iPhone 4.0.1 (8A306)

Xcode Supported iPhone OS Versions 4.0.1 4.0 3.2.1 (7B405) 3.2 3.1.3 3.1.2 3.1.1 3.1 3.0.1 3.0

Thanks,

Ondrej

Answer 1

I know now ... my answer on "Have you tried to turn it off and than on again?" ... was NO :)