Hi, I’ve recently received my new Spitz AX 4G router and am pleased with it.
I ordered a 4G version with the EM160 because the early bird 5G version was sold out.
I have several RM520N-GL modems and use them in Chinese (ali-express) routers successfully. I wanted to replace the 4G/EM160 with one of my 5G/RM502N-GL modems (which has always worked successfully in the Chinese routers) - like this model -
HUASIFEI WS7915AX WIFI6 dual band router wifi 5g HUASIFEI WS7915AX WIFI6 dual band router wifi 5g dual-core n_Shenzhen Huasifei Technology Co.,Ltd
To access the 4G/5G modem it’s necessary to take the SPITZ AX to pieces, and remove a heatsink and fan assembly, which I did successfully. However, when I insert my RM502 5G modem, the unit boots but then repeatedly power cycles about every 30 seconds. The power light comes on, the WiFi comes on for a few seconds and then goes off. This is a clear symptom of power issues - 5G modems in general are known for using more power than 4G modems. So I tried powering the unit with a PSU capable of supplying 5 amps - but still no difference.
I notice from the PCB that there are some unfilled spaces so I think more components may be installed when a 5G modem is used? I wonder if a CIRCUIT DIAGRAM is available, as I could easily add these extra components!
Any advice is appreciated!