Found solution for Mamba Max Pro and Spektrum SRS4210 calibration issue
Solved.
Using a Spektrum SRS4210 with AVC. You cannot calibrate any ESC until you calibrate the AVC receiver.
The solution was found at Tekin's website.
Here is the link:
Unforunately I have not reached the amount of posts needed to post the link. Just PM me.
Alternatively you can use the search terms "spektrum tekin calibration" in google