I was adding a second new ultrasonic sensor and forgot to turn off main battery switch, a power wire accidentally touched a wire I was adding to the EZB4 front D21 D22 area for sonar connections and there was a spark but the main EZB fuse did not blow and it still powers up but no more audio on the start up voice and the Wi/Fi is still connecting to my network but saying it cant connect to EZB in the EZ software. I can get to the main server window for changing the client/ adhoc mode ,diagnostics,resetting EZB all works but still can't get the connection in the EZ windows program to connect,it gives a quick message at bottom something about "can't connect 000000000000000". So would this be a major fault in a CPU chip? *confused*