Yeah that's the problem Mickha, have tried to repair it with Cas3 and have discovered can't repair v4.6 with v4.1, the process doesn't complete. Cas3 includes flash v2.* to v4.1 for the repair routine but no v4.6 ( E-mailed Duolabs with the issue so far they're "maintaining radio silence") however looking at the Cas3 repair routine it looks to me that with a known good v4.6 cam you can lift and make a copy of the flash but I might be reading it wrong.
Thanks for your response.