Hi Ankur, gattc, gatts are shortcuts of haltest (bluez tool for android hal test) prefix commands related to client and server. Instead of gattc you can use btgatt-client tool and gatts - btgatt-server tool, both of them are in bluez/tools/ . Br, Grzegorz -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html