Setting up a Quectel RM520GL-N on a Banana Pi R4-Pro

[Philip Prindeville]

This is also new:

root at OpenWrt:~# uqmi -d /dev/cdc-wdm0  --uim-get-sim-state
{
        "card_slot": 1,
        "card_application_state": "illegal",
        "pin1_status": "disabled",
        "pin1_verify_tries": 3,
        "pin1_unlock_tries": 10,
        "pin2_status": "not_verified",
        "pin2_verify_tries": 10,
        "pin2_unlock_tries": 10
}
root at OpenWrt:~# 


> On Mar 15, 2026, at 4:50 PM, Philip Prindeville <philipp_subx at redfish-solutions.com> wrote:
> 
> Reseated the SIM card.
> 
> Sun Mar 15 16:46:33 2026 daemon.notice netifd: Interface 'qmi' is setting up now
> Sun Mar 15 16:46:33 2026 daemon.notice netifd: qmi (6753): Waiting for SIM initialization
> Sun Mar 15 16:46:33 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:46:41 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:46:50 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:46:58 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:06 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:14 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:23 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:31 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:39 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:48 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:56 2026 daemon.notice netifd: qmi (6753): SIM in illegal state - Power-cycling SIM
> Sun Mar 15 16:47:59 2026 daemon.notice netifd: qmi (6839): Stopping network qmi
> Sun Mar 15 16:47:59 2026 daemon.notice netifd: qmi (6839): Command failed: ubus call network.interface notify_proto { "action": 0, "link-up": false, "keep": false, "interface": "qmi" } (Permission denied)
> Sun Mar 15 16:47:59 2026 daemon.notice netifd: Interface 'qmi' is now down