I went through the RhodiumW-HardSPL_V1_10R3_100HSPL process.
Then I downloaded Energy.RHOD500.21892.Sense2.1.16.Feb.2010 and queued up the visual tutorial linked to in the beginning of the thread (
http://thewingster.com/howflashtp2romcdma.aspx).
I then copied the RHODIMG.nbh file to the root of my SD directory, turned off the phone, then held the volume down key while pressing the power button.
Unfortunately, it is at this point that I got the "No Image File!" message and then the bootloader just sat there. I reformatted the card in FAT32 with default allocation size in Windows 7, then copied the RHODIMG.nbh file to the root of the otherwise empty card, but with no luck. It is a NRGZ28 Energy rom and the file comes prenamed. I didn't have to rename it. And yes, I have my windows explorer set to not hide file extensions, so it isn't secretly named RHODIMG.nbh.nbh.
I don't have another microsdhc to try it with, otherwise I would. My current microsdhc is cheapo 8GB Poloroid class 2 or 4 that hasn't had any problems thus far.
Is there anything else I can try?
This is my first time flashing a custom ROM. I wouldn't mind just doing it from the computer but the NRGZ28 ROM didn't come with the Customruu.exe file. Can anyone point me in the direction of this file? I just want to get it flashed so I can start using my phone again, I'm not married to the idea of doing it off the SD.
Thanks!