Jailbreakme.com fails on downgraded OTB 1.1.2
I was unlucky and got an OTB 1.1.2 today. I know I can't unlock it yet, but I would like to activate and jailbreak it.
From what I've read this should have worked:
I put the phone in dfu and did an alt+restore to 1.1.1, got error 1015 and used iNdependence to bring it out of restore mode. OK so far.
Did the jailbreakme.com thing, after clicking "Install Appsnapp" the phone returned to the activation screen as expected. But nothing happened. I have waited and tried it again, same result.
What now?