Simple fixes include checking your bluetooth, and turning your phone on and off
If you're not seeing a line and you've just put on your sensor / transmitter in the last 24 hours, then please do nothing, it's likely the sensor is just warming up,
Otherwise, please go through these steps in order
1. Restart your phone
This often fixes most issues.
2. Check the transmitter
3. Check Bluetooth and WiFi is on
Please check your data and bluetooth settings, and restart your phone.
You have two settings to check. First make sure this is on (green)
Settings > Bluetooth
Secondly (and most importantly!) go to this and make sure Limbo is on (green)
Settings > Privacy & Security > Bluetooth
4. Disconnect and reconnect the AiDEX transmitter
Go into your profile section, navigate to the AiDEX transmitter, and click on the 'x' to disconnect.
Close the Limbo app, by swiping up from the bottom of the screen.
Check you have the latest version of the Limbo app, by going to the app store and searching for Limbo Revolution
Restart your phone
Open the Limbo app, it will go through the set up instructions. Select AiDEX, and click to confirm the transmitters serial number. Continue clicking until you see pairing.