I have tried to flash the firmware with the MicroSD in the antminer. It is still running off the March 2019 firmware. I also moved the jpr 4 to the right position so Idk what else to try. There is also no SD kit compatible with the S9 so I tried the Z9+ toolkit.
Reply in the other tread and ping out to ccgllc for some more help. I have only done mine they seem to have done more (20+ according to their post)
-Dave