Sprint PPC 6700 will not boot / post after 2.0 or 2.2 rom

[scooby2112]

I ran the upgrade on my phone and followed the instructions and everything said that it ran perfectly and upgraded everything but it didn't do anything after my upgrade even after doing a hard and soft reset and holding down the power and memo record buttons it just shows a dimly lit word serial and at the bottom of the screen v2.02. I removed the battery and let it even sit for 10 min and still nothing. What can I do to fix this or even go back to the original ROM??

Help
Scooby