Sidewinder X8 mouse charging issue, but fuses are OK...

[rooky]

Hi experts

I need some help with a smd label.

I have a SideWinder Mouse X8 where the charging is not working. blown fuses I did repair already. On the charging cradle, connected with the PC, there is a SOT-23 / SOT-323 part labled ADGV 2c which has the marking M1 on the PCB next to it. This part is connected to the red/middle wire of the cable normally. Barging the mouse. I assume this to be the 5v supply of the mouse, but non Lethe 3 pins of the charging wire has a voltage( all 0V).

Does anyone have an idea what part this  "ADGV 2c" is. NPN/pNP or MOSFET n-/p-Channel transistor???
Does anyone know the pinning of the 3 connections of the charging cable which connects with a magnet to the mouse?

Thanks a lot
best regards
Rooky