I would like to pair a Bluetooth audio headset to the EC200U-EU module to make and receive voice calls.
I am using this EC200UEUAAR02A06M08 firmware version but I am getting error +CME ERROR: 53 when I give command AT+QBTPWR= 64 ( to turn on BT HFP AG protocol ) .
Can i get the latest firmware ?
pejman.ghd@gmail.com