No: If it ever booted, it should boot now.
Where is a newer one?
I have no Volla, hence no idea, thus I can only reiterate that something in step 1 or 2 of section 3.3.1 goes awry. As I failed to get the attention of the porter or others experienced in Volla / Gigaset phones, you may try again in posting with a single, concise question addressing this.