I applied greenpoison last night on my 4.2.1 out of the box ipad. It took me 2 times to do it. I found that during the steps to enter into dfu, if I held down the sleep and home button for 2 seconds longer it worked fine. Maybe the timing was off in the installer ?
Same here. I count it out manually and ignore what is on the countdown timers.
I have UT JB working successfully on two iPads and an iphone4, so very pleased here.
Thank you to those committed to helping the JB community.
I wish we didn't to do this and that Apple just make things easier for people to do what they want. I gave a presentation to a group of teachers and admins and I felt silly trying to explain why I didn't have to slide to unlock, or why my pad had a bunch of icons on the bottom row.