I recently had my Split x2 serviced and repaired a few weeks ago and the keyboard part of my dock wasn't working and so I plugged in an usb keyboard and it was working fine. After 2 weeks I went to turn on my computer and I've received a message saying "Flash Dock EC yes or no?" I didn't know what this meant so I pressed yes on my tablet and then I tried using the keyboard that was connected to the usb slot and nothing would work, even my tablet wouldn't connect to the dock. The usb slots, the charger and the dock connector would not function at all. Any help/suggestions?