UART issue after BOOTLOADER JUMP

[Abhishek]

we wrote a small application to jump to a desired address of our application from bootloader , but UART does not seem to work(i cannot see any transmitted values on terminal) once the application is started by the bootloader ,

is it something to do with transferring the vector table from bootloader to main application?

[bjorn-spockeli]

Are you referring to the Nordic UART Service or the hardware UART peripheral? If its the latter, did you initialized the UART peripheral in the minimal bootloader(small application) before you jumped to the main application? If you debug the application, do you get any error codes from the function calls (app_uart_put(), app_uart_get() nrf_drv_uart_tx etc)?