Any suggestions to bypass a Clara BW bootloop?

[Kobotomised]

Hi all,

I've got a N365B with an interesting issue. It won't complete setup as it's down a level or two. I think there may be a write issue with the internal storage as I get the Updating screen and then back to language selection.

I can mount the KOBOeReader partition from the "Let's get started" screen. What I have tried so far:

1. Holding the power button to try to prompt a restore - it just loops to the language screen again.
2. adding the SideloadedMode=true statement to the .conf file (No effect).
3. copying the entire KOBOeReader partition contents, including hidden files, from a working and logged-in Clara BW (No effect).

The changes I make to KOBeReader do persist through the reboots, suggesting the problem is not with this partition.

Is there anything else I can try or is it time to throw in the towel and order a new motherboard?

Thanks