how I find MAC address of my bolt device
Solution with an Android tablet/phone
Connect the Android tablet/phone to the same network the device in question is connected to. On your Android tablet/phone, install Fing from the Google Play Store. Look at the MAC addresses of the devices that are on the network in Fing. Connect the device to the network and refresh Fing (e.g., by clicking a semi-circle arrow in the upper right-hand corner). Find the device that recently connected to the network.