YAAAAH. Worked. Update for U632.6.5.1121 solves the problem with the certification.
Link to zip file
I was told to unpack it onto the reader (main folder).
Then:
Press on/off
Press on/off together with forward/backward page buttons until it says "firmware updating" then follow instructions until the installation is complete.
Good luck and enjoy reading. I cannot wait to go back to my beloved pb after the tolino