Sadly the vendor on eBay ripped me off and I had to repair the TX, he reverses the voltage and fried a lot of the circuits. I replaced som voltage regulators and the TX is good to go now.
I immediately flashed the TX with er9X custom firmware and now I have a perfect TX for my nDROiiD.
I use it with my TR6A V1 which provides a SumPPM sadly there are only 6 channels on the RX but it will do the trick for now. I will try to get a sumppm encoder to use all 8 channels that are available on the TX.