I have my blobs backed but I was worrying about the baseband mostly..
But lastnight the phone did as I said it did up top..
So I then take pwnage tool and build a 4.1 file knowing pwnage dosent update baseband..
As thats building I hard reset the phone from it's restore screen and hit the power button and it comes on as it should.. I kept getting (this accessory is not optimized for the iPhone and may decrease reception) even tho I didn't have anything plugged in..
That message was why I turned my phone off and back on in the first place
You may have some dirt or build up in your usb connection causing that error. Try to clean it out with something, or you can use popup blocker from cydia to disable that message.