4G setup/offline problem (UBox app)
Before starting 4G troubleshooting, reset the camera first. Reset only for setup (add device) issues. For offline issues, proceed to the steps below.
https://javiscam.net/pages/4g-camera-reset-u
The indicator light is on the back of the camera. During 4G setup, make sure the blue light is solid before scanning the QR code.
Steps to troubleshoot 4G setup and offline issues in the UBox app:
-
If the blue light keeps flashing after one minute, the camera cannot find a strong 4G signal. Please take the camera outdoors and try the setup steps again.
There might be no signal in forests, deep mountains, and on the sea. Please use the camera where a good 4G signal is available.
We only guarantee the camera works in the country of purchase. For example, a camera bought on Amazon.de is guaranteed to work in Germany, though it may also work in other European countries.
-
If the camera's blue and red lights flash alternately, it indicates an issue with the SIM card.
The SIM card may be out of data, inactive, or damaged. If using the original SIM card that came with the camera, please provide the SIM number printed on it so we can verify it in our system.
If you're using your own SIM card, please make sure it has sufficient data.
-
If both the blue and red lights flash simultaneously, complete the two steps above (step 1 and step 2) first.
If the issue is not caused by the SIM card or 4G signal, it may be due to incorrect APN settings. This usually happens when you are using your own SIM card instead of the one that came with the camera.
Follow the steps below to configure the APN for your camera and SIM card.
-
Tap "Add a camera", then select "Setup 4G device".
Since the camera’s blue light is not solid, tap "Blue light isn't constantly on" at the bottom.

-
Then, tap "Setup APN". Scan the QR code on your camera and enter the APN values manually.
You can find the APN information from your SIM provider online. If you’re unsure what to do, please send us your SIM card’s brand and model.

-
If none of the above solutions work, contact us via online support in the UBox app for further help.
