Hi, I have a Turkish (Turkcell) ZTE MF286R Modem, but I can't get a root shell going. Rx works quite well, but Tx doesn't want to work.
I am using the UART pins of a Jetson NX that I have on hand but I also tried these two as well and Tx didn't work on them either. (https://ibb.co/WWgFCsHT couldn't upload this photo here)
The jumper should work according to the multimeter but I can't understand why I can't write anything to shell. Stopping Autoboot doesn't work.
Thanks for any help.