I have an XO1 & ERBE which have the same TX, well lately I sent back to Traxxas my XO1 TX for flushing, because there is no response on the TX no lights at all. Then Traxxas sent it back to me in working condition. Yesterday I was about to go out and play with my ERBE turned on the TX lights on green but my IPhone wont receive any response with the signal, the left top indicating the link button were red, I'm fed up with this TX I want to downgrade on those Old TQi with no issues!