Me and a friend of mine also have the same problems with the Tekin/spektrum.
In the hole summer it has been a problem loosing contact with the car as people descibe it in here.
I feel I have tryed everything, but changing the servo. That is my next project and then I will check all the wires from the reg and the servo.
I bought the esc in June and had the problems allmost the hole time.
The first thing that broke was the switch, so I drop it an soldered the wires.
I will go over and check them now.
I have tryed different radio's Dx3s and now Dx3r, 3 different receivers, 2 batteries, cap on receiver, change and resolder all the power wires and conectors inc. changing the cap on the tekin. So now I will try a hitec servo that is not digital and if it work, I will go over all the wires on the savoxservo.
I have been driving buggy (Durango DEX410) indoor and outdoor, same problem.
I use a savox digital servo.
But since the problem only is when I use the Tekin, the esc must be the main problem.
Even if I put the current limit down to 50% the problem is the same, it comes arround 3-4.min.drive.
I have tryed 3.different softwares, now 212.
Get tired of this! I like the tekin very much but this stinks!
Team tekin should fix this as a warrenty!