Keep getting error during Update from 4.24.651.1 to 4.53.651.1

[mciranger]

I have a stock rooted evo, rooted with revolutionary. I have been trying to Update from 4.24.651.1 to 4.53.651.1. I have followed the steps in this post http://forums.androidcentral.com/ht...51-1-4-53-651-1-without-losing-root-apps.html. But each time I get to the end, I get E:Error in /sdcard/OTA_supersonic_4.53.651.1........What am I doing wrong?