Yup, fair comment Giomen. But before posting the guide for imgr i converted an old [1GB] 255 with AU logo to 465 using that rgn file and Updater.exe initially gave that error but flashed properly on the 2nd attempt. I've since downloaded kunix's modded RGN_Tool but haven't tested it [i don't need to, we both know it will work anyway, right? ].