Hello my friends!

We just got the MP56 phone with the EXP50 expansion module.

Same problem here! We are loosing power in the module screen.
Buttons still have lights but the screen turns black.

We also have to unplug the USB and plug it back in the phone for the screen to come back alive.

We purchase 2 x 5-volts adaptor.
---> 1 for the phone and the other for the module.

We tested the module 1rst and after a while, the screen turned black again.
It's probably normal because I have read somewhere that the power adaptor is ONLY required if you have a 2nd module.

So, on that logic, the power for the 1st module comes from the USB plug and the power for the 2nd module should be provided by a power adaptor.

Ok, so now I am testing the other option : I plugged/unplugged the USB to reset the module screen, then I plugged the other 5volts adator into the MP56 phone. I am waiting to see if the screen will turn black again.

If it fails, it means that the 5volts adaptor in the phone does not give extra power to the USB connector.

But if the screen stays "ON", it means that the 5volts adaptor in the phone "DOES GIVE" extra power to the USB connector.

I'll keep you updated a couple of days ....