When I use the e-tube software via bluetooth on my android device (phone and tablet) to perform Di2 system updates (check firmware, load preset bike settings, etc.) once the process is complete my Di2 system goes totally dead. Levers/buttons don't do a thing. Likewise pushing the button on the main junction box. Not lights or change of function. Only way to wake up the system is to remove my seat post and disconnect the internal battery for 10 seconds. After that all works fine.

I have the latest version of e-tube and the firmware on all of the devices is up to date. Anybody else have this issue?

Hard wired use of e-tube software on my PC seems to work OK but I'd like to be able to do it "out in the wild" via my bluetooth phone if needed. I don't carry a torque wrench in my pocket and reinstalling my seatpost after accessing the battery requires the max allowable torque to be secure.