BMS63EN Diagnostics - How to?

[Orbiter]

I had a fine working setup with BMS63 for some hours. 

Than cell 12 showed 0V and the fault light in the ISO SPI came up. 

A short measurement showed, the cell was indeed empty (I am testing with very old cells). 

After replacing the cell cell 12 still shows 0V, and the fault light is still on. 

If I measure with the testpins on the BMS63EN itself, I can see that there is a cell voltage. So something went wrong with the BMS63EN I think. 

Do I need to reset the error/fault? In the manual its stated that software diagnostics need to be run in such case. But..how? 

And shouldn´t that be all reset after a complete disconnect and new init? 

[Orbiter]

It seems impossible to get this running. The error codes do not help, the documentation is not helpful, even the devboards seam to be frying up one after another, costing a lot of time thanks to impractical contacts and the basic examples are not easy to get working either. After having bought already far too many devboards for this and spend way too much time I officially resign from ST today. It just makes no sence to develop with this, sorry guys.  

Anybody who is interested in buying my collection of BMS devboards, please reach out via PM.