Clara BW kobo clara bw keeps restarting

Hi,

I've upgraded my Kobo Clara BW to version 5 and noticed the ssh stopped working, then I downgraded it again latest 4 version but it was too new version and ssh wasn't working either so I downgraded it again to some lower version 4, and that one was too early and ssh wasn't working, so I used the interface to upgrade hoping to get a good 4 version. After that my kobo is bricked.

It keeps restarting, the user interface is frozen and after several seconds it restarts loads again and is frozen again. When I connect the usb cable to my computer when it restarts it will start the interface with the connect popup window but the interface is still frozen so I cannot click the connect button and. upload some upgrade/downgrade to try another version.

Can someone please help me, I'm really sad I bricked my kobo :(

Thank you in advance.