Trying to integrate BG95(Quectel modem) to mbed Target Board

Hi,

Has anyone integrated an mbed target board (either k64 or Nucleo_f410re) with BG95? I’m having a trouble in the integration. Sending the “AT” over uart and get an “OK”.
I’ve translated the uart voltage level from 3.3 to 1.8V but the modem still is not responsive.
Configured a callback on the receive and sending “AT” on uart is what I am doing.
This seems pretty trivial, but any guidance would be appreciated