I recently downgraded from stock 4.5.596 to Froyo then rooted with z4 and updated to 4.5.588 with ClockworkMod. I did this hoping that 4.5.588 did not have the wireless tether block. No such luck. I would now like to go back to Froyo. Do I need to SBF back again, or is there an easier way? Thanks in advance for your help.