Resolved! Can't detect bluetooth from B-U585I-IOT02A.
I am using BLE_AT_CLIENT example from STM32CubeIDE 1.7.0 but nothing detected either on ST BLE SENSOR app or on my computer/smartphone normal bluetooth scan. I have 2 B-U585I-IOT02A and both give the exact same error message on teraterm. Also here is...