I have the ZTE MF288 hub and I noticed my software version was 1.0.12 while the PTCRB certification page lists a 1.1.12 version (https://www.ptcrb.com/certified-devices/device-details/?model=36471). Does anybody know if there's a difference in the newer software? I checked for updates but none are found, do they have to be pushed from ZTE?
Also, does anyone know what the bottom USB port is for? Diagnostics? I would like to know what band I'm on and what CA combinations it's using, but I can't find any way to get that. I've searched for open ports like the MR1100 has to do AT Commands over, but no luck. There is an open port, 10005 that is supposedly for Secure Telnet, I connected to it but nothing happens.