We bought a Compex WPJ 428 board + a SIMCom 8202G LTE/5GNR modem and we try to make it work on OpenWRT
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WPJ428 + SIMCOM 8202G

We try to build a FOSS 5GNR Router with OpenWRT. Some challenges we have encountered so far:

  • OpenWRT stable misses a patch to enable our board ethernet port -> we compile from source
  • The Modem Manager simtech plugin does not declare 5GNR

Flash the router

First connect with your UART cable on the router:

UART