Drag NPK into Files, double reboot, done. Works well on hAP AC2, no visible difference atleast now. Linux kernel has upgraded from 3.3.5 to 4.14.131.No other instructions was given. Heard hAP ac² and some other devices mentioned, so I guess there's no restrictions on 4G-5G devices only.
External antenna is mandatory with LTE card. You can add 1 GPS antenna and 1-2 LTE antennas, so external GPS-only (GPSANT) or GPS+LTE combined antenna is needed. You also need 1-3 U.fl Female / SMA Female pigtails to connect them.Any solution anyone?