Service & Support About Bluetooth Settings How to set a Bluetooth Passcode? Detailed Tutorial Tips: It can only be run on Windows PC. Step 1 :Download ADK.zip(You can click on the icon for zip download.) ADK_QCC512x_WIN_6_4_Installer_6_4_2_26 Step 2 :Unzip ADK_QCC512x_WIN_6_4_Installer_6_4_2_26.zipThenRunning ADK_QCC512X_QCC302X_WIN_6.4.2.26.exe Step 3 :Select all and click Next. Step 4:Then connect the blafili B3 to your Windows PC with the included USB cable. Step 5 :Find this app in Start.And click Run. Step 6 :Choose blafili b3 Step 7 :ClickGo Configurable. Step 8 :Click Bluetooth > Connection Management > Pairing Step 9 :Check BoxPin Code Mode Enable. Step 10 :Type In Your 4 digits code.ThenClick Write Device. Now, your Bluetooth Passcode setup is over. Tutorial Video