5:Once the Bluetooth printer is found. You can see it listed on
the screen, Here, for example,LY80 Bluetooth printer is
successfully found. Please click “-LY80”, click “Next”
6:Choose “Let me choose my own passkey”, then enter
“1234”(this is factory default passkey, if you want to change it,
you have to inform us to set the new passkey for you in our
factory before shipping),then click “Next”.