New Firmware

[jhwalker]

Thanks for all the comments but I have tried all these things. My case is completely discharged as are the buds. Nothing connects to the phone or registers in the app as it has no charge whatsoever. It’s been plugged into the wall all day and zilch. 
I’ve called Devaliet again and demanded a new pair be sent without return of the old. I will then return the old. 
My next move is to the editor of what HiFi, HiFi choice and any other publication to name and shame this utter shambles. I will give Devaliet till Monday to respond, then it’s gloves off.

I understand your frustration, but that sounds awfully petty and punitive.  

They've already offered to send you a replacement pair upon receipt of the defective ones.  This is pretty standard procedure, isn't it?