SIM not inserted

blqnum

Hi,
we are using Quectel EC25 LTE modem on a AIO-3399C board, but it doesn't detect the SIM.
We are using the latest Ubuntu 18.04 image.
The SIM works correctly in other devices.
We have used several EC25 and SIM and it does not detect the SIM.

# modem-manager.mmcli -m 1
  --------------------------
  General   |      dbus path: /org/freedesktop/ModemManager1/Modem/1
                  |      device id: 7c581cd78b9a69970687cc455a6d732ec219c005
  --------------------------
  Hardware |   manufacturer: Quectel
                   |          model: EC25
                   |       revision: EC25EFAR06A07M4G
                   |      supported: gsm-umts, lte
                   |        current: gsm-umts, lte
                   |   equipment id: 860548042446762
  --------------------------
  System   |         device: /sys/devices/platform/fe3c0000.usb/usb1/1-1
                 |        drivers: qmi_wwan, option1
                 |         plugin: Quectel
                 |   primary port: ttyUSB2
                 |          ports: ttyUSB0 (qcdm), ttyUSB2 (at), ttyUSB3 (at), wwan0 (net)
  --------------------------
  Status     |          state: failed
                 |  failed reason: sim-missing
                 |    power state: on
                 | signal quality: 0% (cached)
  --------------------------
  Modes    |      supported: allowed: 2g, 3g, 4g; preferred: none
                 |        current: allowed: any; preferred: none
  --------------------------
  IP            |      supported: ipv4, ipv6, ipv4v6

Using AT commands:
AT+cpin?
+CME ERROR: SIM not inserted

Thanks.

harryry305

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