Sorry you're having difficulty.
Please go here and download the is tool http://forum.xda-developers.com/show....php?t=1307539
Do EXACTLY what it says to do in the PDF
I flashed my Iconia with your new rom v4 (i cant access to any internal setting like usb debugging option )and i flashed it by APX mode after that my tablet screen did not change and it is same before
but i have a good news and a bad
good news : I have cvm recovery now when i pressing power & vol- keys CWM recovery mode goes up
and bad : i can move on cvm menu options by vol. keys up or down but when i pressed power key for choosing this options my tablet turn off instantly and i cant choose any thing
what is your idea ?
thank you for your attentions