The instructions from Roland (you DID read the .pdf?) say nothing about updating from a Card (in fact, the instructions tell you specifically to take the card OUT before you update).

If you want to try a different method than Roland recommend, can't blame them when it doesn't work......

I recommend you back up your data (hopefully, as Roland suggest, you DID back up your data BEFORE the update) and if you don't have enough internal memory to do the backup, re-format your internal memory, do the update procedure EXACTLY as Roland tell you, and then re-load in your data. Should work (it worked for me).....