Trans update problem - bricked TCU

[MIKUr1]

Tried to update GM transmission in E90 with this "marvelous" tool and get error 211, "ECU does not respond". Now trans ECU is bricked, car is stuck, and another tries of programming ends with same result. What now?

[Xhorse]

Tried to update GM transmission in E90 with this "marvelous" tool and get error 211, "ECU does not respond". Now trans ECU is bricked, car is stuck, and another tries of programming ends with same result. What now?

Here is a link to complain
http://xhorse.uk/issue/