I think that is incorrect, they literally have a tool that accepts the firmware of all the following models (S9.S9j.S9k.S9se.S11. S15.T15.S17.T17) and I am not aware of any control board that is available to the masses which can do that. correct me if I am wrong.
Hello
You are completely right
The repair tool is literally an s9 control board with an SD card image running the diagnostic software hooked up to a screen. You can get a copy of the SD card on the internet somewhere
hi
This is not the case at all
If you buy the S9 or V9 board control
And copy the files into the SD card
The final output is something different from the tester
They are similar in appearance but are practically different
I tested it doesn't work
You have to buy the tester yourself from a Chinese company if you want