Increase sensibility for charge on STEVAL-ISB027V1 with STWBC

[FDias.1]

I would like to know the location for download the latest firmware.

When I put the phone, I have tried different brands smartphones it does not initiate to charge, it seams difficult to detect. The behaviour is erratic, sometime detect and start to charge, some times it does not detect. What parameter should I change in order to detection is increased.