Usage of UART0 for application purpose

Hi all,
I am trying to use a UART0 for application development.
Disabled the UART0 for debug purpose. In " hw_intfc.conf " file.
#intfc:dtoverlay=console-on-ttyS0
But still not able to send and receive data properly.
Receiving junk data always.

How to solve this issue?

Thanks
Aniket

Hi, please the post, How uart1/2 work with out overlay dtb file