Hello Suhfi,
You can check the following steps for resolving the issues:
- Please ensure the correct COM port is selected in NEAI Studio datalogger
- Any other Serial terminal application( Putty, Teraterm or even the Cube IDE) should not access the serial port of the STM32 Hardware while datalogging on NEAI Studio.
- Update the ST Link firmware
- Disconnect/Connect the Serial USB cable if required and then check the datalogging process
Hope this helps, I had faced similar issues in the past and these steps worked for me.