synchrololled

So i've tried going from 6.2 to 7.1 everything seemed to have gone well untill I got to you can migrate, it is asking me to install a .pat file, i've tried multiple but all seem to return the file is damaged. I am downloading them from the official synology site as is suggested. bootload used: redpill 918+ v7.1.0-42668 i've followed the steps from I've tried every .pat file that is that but all return it's damaged what have I done wrong here?