What should I do if my TP-Link ISP-customized 4G/5G Router cannot detect SIM card?

Introduction

This guide provides step-by-step instructions to troubleshoot issues that the SIM card cannot be detected by the 4G/5G Router.

Troubleshooting

Scenario 1: SIM Status shows No SIM Card Detected

Step 1. Reinsert the SIM card, make sure it is inserted correctly and firmly.

Step 2. Restart the Router while the SIM card is still inserted.

Step 3. Test the SIM card in your smartphone to confirm it is working properly.

Step 4. Try to insert a different SIM card if you have.

Step 5. Factory reset the Router by pressing the reset button for 3 seconds, then reconfigure it.

Scenario 2: No SIM Card Detected during Setup

Step 1. Factory reset the Router by pressing the reset button for 3 seconds, then reconfigure it.

Step 2. Set up the Router as a Wi-Fi Router and then switch it back to 4G/5G Router operation mode. Check if the SIM card is detected. If not, refer to the first scenario.

If the problem still exists after the above troubleshooting, please contact TP-Link Support and provide the following information:

• Model number, hardware, and firmware version of the Router.
• The troubleshooting steps you have tried and the results.
• When and where did you purchase it? Was it working fine before?
• Who is the SIM card provider (Internet service provider)?