If you see the following message when trying to pair the printer, it can be resolved in a couple of steps.
Fixing Connection Unsuccessful
If you see this error, it's likely the printer is already paired with the iPad. You will need to forget the device.
- On the iPad go to Settings
- Select Bluetooth
- Under My Devices you should see QL-820NWB0182 (or similar)
- Press the 'i' Icon
- Select Forget Device
- Press OK to confirm
Go back to Jomablue Lite and attempt to pair the printer.