endless reboot cyle

so I followed all steps provided in both the instructions on this site and in the video on youtube and have been unsuccessful in stopping the endless reboot cycle. I'm using an iPod 4G, my iOS is 6.1.6, and my redsn0w is 9.15b9. the software I had redsn0w use is 6.0.0 as instructed. wtf do I do???