The Bluetooth pairing is done in two steps. The first step activates the pairing on the card reader and the second step initiates the actual pairing from your phone.
On the card reader do the following:
Switch over to your phone and do the following:
On the card reader:
On your phone:
The Miura can only be paired with one mobile device (smartphone or tablet) at a time and needs to go through the pairing process before it can be used with another mobile device.
In some cases, the reader might still appear in the list of connected Bluetooth devices on one mobile device, after it has been connected to another mobile device. Delete the reader from the list of connected Bluetooth devices of the first mobile device before you start the pairing process with it.