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Verify SIM Card

Verify the SIM card installation and registration on the cellular networks.

Check SIM Card

The cellular router requires a SIM card to set up the internet connection over mobile networks. You can use data SIM cards or regular phone SIM cards on the 4G router.

Please check the factors below if the mobile interface is not connected to the cellular networks.

  • Please ensure the SIM card is workable and activated. You can test it on a mobile phone before inserting it into the 4G router.

    • Ensure your SIM card is eligible to access the cellular 4G LTE networks.

    • If it's a new SIM card, please follow the instructions from the mobile carrier and activate it.

  • Please check the golden contacts on the SIM card.

    • The SIM card is not workable if some golden contacts are broken or missing.

    • If dirt is on the golden contacts, please clean the SIM card.

  • The precise SIM cardholder has only one way to settle the SIM card correctly. If using a non-standard SIM card, please refer to the insert SIM card to reinstall it.

  • There are two SIM slots on the SIM card holder. The 4G router uses SIM1 a slot by default. Please insert your SIM card in the SIM1 slot. You can switch the router to use the SIM2 slot on the firmware. Go to Network > Interface > Mobile: Edit > General Setup > Active SIM Card.

Please always turn off the router power before inserting or removing the SIM card. If you were inserting a SIM card when the router powered on, please run a hard reboot by reconnecting the PoE adapter.

SIM Card Registration

After inserting a SIM card and the router is powered on, go to the command-line interface and use the command gcom to check the SIM card status and registration result.

i. SIM READY

As the below standard example shows, if the SIM card is installed correctly, it should return SIM ready on line 2. If the SIM card is eligible to access the cellular network, you can get the registration result on line 4, which indicates the mobile carrier's name. 

root@OutdoorRouter:~# gcom
Trying list of devices
SIM ready
Waiting for Registration..(120 sec max)
Registered on Home network: ""CHN-UNICOM"",7
Signal Quality: 28,99

ii. SIM ERROR

If there is no SIM card installed, the SIM card is installed incorrectly or the SIM card is non-workable, the return value shows ***SIM ERROR***, like the example below.

root@OutdoorRouter:~# gcom
Trying list of devices
 ***SIM ERROR***
Check device port configuration.
Check SIM is inserted
Test SIM in a mobile phone?

iii. REGISTRATION ERROR

If there is no cellular signal or SIM card that is not eligible to access the mobile network, it will also show SIM readiness, but the registration process will take max 120 seconds longer. The registration result will show Failed to register like the below example.

  • Check if you have the 3G or 4G cellular signal reception.

  • You can check with the mobile carrier if the SIM card is eligible to access 3G or 4G networks.

root@OutdoorRouter:~# gcom
Trying list of devices
SIM ready
Waiting for Registration..(120 sec max).............................................................
Failed to register

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