Same thing here...
I Bought a second screen, due to the repair bill being almost as much. That Second screen works...
Hint:
Connect it ( second screen) to the V60, then Don't continuously connect and disconnect.... Get the little external USB adapter and charge thru that
NO excuses ... Don't make my mistake. Once working, don't disconnect it, unless you can do as I will (am) doing in the last paragraph...
Seems there is a particularly delicate connection issue between the V60 unit's connecter, and the screen.
Also the V60, even without the dual screen, will fail to charge with adequate speed due to the phone's connector..
I'm purchasing a kit to clean all the above connectors. Someone indicated this is an issue with the phone's charging port, or maybe the dual screen's port. The iPhone has the same problems.