Why can't I get a signal or be detected when I insert my SIM card into the slot?
Jun 27, 2025
by Koason
I had used a sim card. Now I got a new 5G card, but the device does not accept it. Is the device not compatible with 5G or do I have to make any settings on the device, if so which ones.
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- Please check the card size, a Micro SIM card is required.
- SIM card does not support hot-swap. You need to reboot after inserting the SIM card.
- After reboot, if there is still no signal or SIM card is not detected, please check if the SIM card is a 5G card. Please check if the SIM card is a 5G card. Currently the device does not support 5G, please switch to another 4G SIM card and try again.
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If you are sure it is a 4G card, Please check if the 4G antenna is connected.please refer to the following article to set it up. https://www.koason.com/blog/how-to-solve-the-problem-of-not-being-able-to-connect-to-the-network-after-inserting-a-4g-sim-card
Are there any other options or can I now only use the device without internet?
You can connect your phone using CarPlay or Android Auto. Alternatively, you can turn on your phone's Wi-Fi hotspot and connect the Android screen to it.
Other related issues:
SIM card can't make calls.
SIM card can't make calls.