SIM not inserted

Chip Platform Rockchip
1

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.

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