I have tried to install rayhunter on the TP-Link M7300, Firmware Version: 1.0.5 Build 151210 Rel.1019n
https://www.tp-link.com/baltic/home-networking/mifi/m7300/
The installer of rayhunter 0.7.1 worked out of the box, and treated the device as if it was TP-Link M7350 hardware revision v3.
$ ./installer tplink
Launching telnet on the device
Detected hardware revision v3, successfully opened telnet
Connecting via telnet to 192.168.0.1
Mounting sdcard on /media/card
Sending file /media/card/config.toml ... ok
Sending file /media/card/rayhunter-daemon ... ok
Sending file /etc/init.d/rayhunter_daemon ... ok
Done. Rebooting device. After it's started up again, check out the web interface at http://192.168.0.1:8080
LEDs are not supported as a status indicator. Since there is no display, the display task panicks. But rayhunter’s web UI stays running and seems to work. The diag device initializes successfully.
EDIT TEST 3