Piseth Nuon

Dear all! I own Benz s300 hybrid/diesel year 2016. First I want to let all dear brother that my Benz have a problem with tcm (transmission control module).my mechanic told me after he check the car via his computer and we need to change it and reprogramming it. But after we change the new tcm , we need to reprogram. When we do the program, it requires 2 points (1) idled speed need to lower than 800rpm (2)the hybrid battery need more than 35% to complete the program. And the problem right now is my hybrid battery is only 34% and they try to charge it but it is not success. It still only 34%. So please help me. Any recommendations for that problem ? Thanks