How to Troubleshoot SIM Card Signal Issues on a Terminal: Difference between revisions

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When inserting the SIM card, look at the display of the lock screen
When you insert a SIM card into your terminal, the response on the lock screen can help diagnose any signal issues. Here are steps to troubleshoot common signal problems:
* If shows "No SIM card - Emergency calls only", please check whether insert the SIM card to the correct place. The follow picture is slot place of Q2, please notice that after insert SIM card, you should restart the terminal, the slot doesn't support hot plug.
== Scenario 1: "No SIM Card - Emergency Calls Only" Message ==
[[File:Simcardplaceq2.png|frameless|thumb|caption]]
* '''Verify SIM Card Insertion:''' If the lock screen displays "No SIM card - Emergency calls only," first ensure that the SIM card is inserted correctly.
 
[[File:300px-Simcardplaceq2-1.png|frameless|thumb|caption]]
* If shows a blank signal or a forbidden signal icon like the follow picture, please check the Settings>More>Cellular networks>Preffered network type, set the correct type.
* '''Restart the Terminal:''' After correctly inserting the SIM card, restart your terminal. Note that the SIM card slot on the Q2 model does not support hot-plugging (inserting the SIM card while the terminal is powered on).
== Scenario 2: Blank or Forbidden Signal Icon ==
* '''Check Signal Icon:''' If the lock screen shows a blank signal or a forbidden signal icon (as illustrated below), the issue may be related to network settings.
[[File:Nosignal.png|frameless|thumb|caption]]
[[File:Nosignal.png|frameless|thumb|caption]]
* '''Adjust Network Settings:'''
** Go to 'Settings' > 'More' > 'Cellular Networks'.
** Select 'Preferred Network Type'.
** Ensure the network type is correctly set according to your SIM card's capabilities and network provider requirements.

Revision as of 23:22, 3 January 2024

When you insert a SIM card into your terminal, the response on the lock screen can help diagnose any signal issues. Here are steps to troubleshoot common signal problems:

Scenario 1: "No SIM Card - Emergency Calls Only" Message

  • Verify SIM Card Insertion: If the lock screen displays "No SIM card - Emergency calls only," first ensure that the SIM card is inserted correctly.

caption

  • Restart the Terminal: After correctly inserting the SIM card, restart your terminal. Note that the SIM card slot on the Q2 model does not support hot-plugging (inserting the SIM card while the terminal is powered on).

Scenario 2: Blank or Forbidden Signal Icon

  • Check Signal Icon: If the lock screen shows a blank signal or a forbidden signal icon (as illustrated below), the issue may be related to network settings.

caption

  • Adjust Network Settings:
    • Go to 'Settings' > 'More' > 'Cellular Networks'.
    • Select 'Preferred Network Type'.
    • Ensure the network type is correctly set according to your SIM card's capabilities and network provider requirements.