Troubleshooting SIM Card not Found?
This Article Applies to:
All 4G LTE Routers
Issue Description/Phenomenon:
Customers may find that the SIM Card Status displays a 'NO SIM card detected' error (pictures as below) when they inserted the SIM card into the 4G router, follow these steps:
Troubleshooting Suggestions:
- Make sure the SIM card is firmly inserted per link: How do I install a SIM card for my 4G Wi-Fi router or Mobile Wi-Fi?
Some key points: Please pay close attention to the SIM card as the metal clamp that "secures it" closes and see if the act of closing pushes the SIM Card out of alignment.
For more details, please refer to the information shared by#36 @string
- Restart the router with the SIM card inserted.
- Reset the router by pressing and holding the RESET pinhole for 10s until all LED lights flash off then back on.
- Put the sim card into a smartphone, confirm that it is working well on the phone.
- Try using another SIM card if that is possible.
If none of the above helps to make the SIM card detect correctly, Please comment below with the following information:
- A picture of the bottom label with The model number and hardware version of your 3/4G Gateway:
(Especially you have Archer MR400 V4.2, Archer MR200 v5.2, TL-MR6400 v5.2, and TL-MR100 v1.2, Thank you in advance. )
- The SIM card carrier:
- Would there be any damage to the Micro SIM Card Slot before, such as the SIM card being stuck in and not able to be taken out?
- How long have you had the device, and when did this issue start?
- Was there any firmware upgrade before no sim card was detected?
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Hi, please check the SIM card status on Advanced->Status page, if it shows No SIM card when a working SIM card is inserted properly, please try the following steps to see if it will fix the issue:
- Restart the router with the SIM card inserted.
- Reset the router by pressing and holding the RESET pinhole for 10s until all LED lights flash off then back on.
If still no any SIM card can be detected, please contact the seller where you bought it originally to check the warranty and get it replaced.
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Carrier: GiffGaff (O2);
no obvious damage to sim slot;
owned for about 5 months from new;
No newer firmware available.
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Hi, please insert a working SIM card into the device, then login to the web interface via tplinkmodem.net or 192.168.1.1, then please check SIM card status on Advanced->Status page and share with us a screenshot of the Status page.
If it shows No SIM card, you could also try a different SIM card, and try the following steps to see if it will fix the issue:
- Restart the router with the SIM card inserted.
- Reset the router by pressing and holding the RESET button for 10s until power LED start flashing
If still no any SIM card can be detected, please contact the seller where you bought it originally to check the warranty and get it replaced.
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@TP-Link I have tried the above mentioned strategies but still the sim card is not detected please help me out. thank you.
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Hi, please check the SIM card status on Advanced->Status page, if indeed it shows No SIM card when there is a working SIM card in, and problem still exists after trying the troubleshooting steps mentioned on this post such as reboot it with SIM card in etc., please contact the seller where you bought it originally to check warranty and get it replaced.
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Have the same issue with my TL-MR6400 V4.
Bought in June, stopped detecting cards in July :(
Tried the mentioned troubleshooting steps - still not working.
Do you know what can be the issue? I assume it must be hardware one - but do we know anything more (@TP-Link, @Sunshine)?
I've seen that somebody on YT fixed that by replacing the SIM card slot. Not ideal, but if you can confirm that it's most likely it, then it should be easier and cheaper than sending the router back for warranty replacement.
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@ranjbar If you are getting an “Invalid SIM Card” or “No SIM” error, you can try restarting your Android device, removing the SIM card and re-adding it, and resetting network and APN settings. If nothing works, you may need to replace your damaged SIM card with another one (from the same carrier), keeping your number.
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