Install application without developer certificate?

I am willing to jailbreak my device, but not sure what to do after that.

Dev program application will take too long for a demo I hope to do on hardware tomorrow.

EDIT开发者_如何学运维ED: It doesn't need to be 4.1 on an iPhone 4

You cannot jailbreak an iPhone 4 on 4.1 sorry! That makes this impossible as far as I know. Sorry!

My recommendation would be to find someone with a developer certificate who could help you out.

If you can find a jail broken device the guys answer below me talks about how to do it with openssh.

Once you've jailbroken your phone, you can harness the power of OpenSSH and this code "signing" guide from Saurik and pseudo-sign your app, allowing it to run on the device.