Check if you have authorized PETFON APP to use Bluetooth in your cellphone.
2. Check if you have authorized PETFON APP to use the camera in your cellphone.
3. Check if you have teared off the film under each device.
4. Check if you have activated the device.
Put the tracker and controller back into the charging box to activate the device. A red,green or blue light should come on after that. No matter what light comes on, when it lights up ,that means it's turned on/activated. You could go to step 5 after that.
5. Please try scanning them again.
PS：Due to LG V20 's Bluetooth performance limit, Petfon might not be compatible with this cellphone model, please kindly contact us if you are using this model.