LG K12+ RUNS but not find BLE DEVICES


I have tests many APP INVENTOR BLE examples on LG K12 (Android 9.0) and anyone detects my BLE DEVICES.

If i use the BLE SCANNER works very nice!

Did someone get the same problem ?


We would need to see your Code Blocks.


  1. Make sure devices are compatible - should you use ‘Classic’ Bluetooth or ‘BLE’
  2. Make sure you Android Device (Phone) has Location switched on. This is a Google Android security dependency.