Originally Posted by dpc.ucore.info
I'm looking for an information how to connect to i9250's uart serial port and possibly other stuff.
To get access to your kernel's, bootloader's logs through UART you need UART jack(dont know this word in english, I think I guess 'jack') on your board, in your case i9250's.
If developers of board didn't add that jack to pcb design, your attempts to view logs will be unsuccessful.
If you find UART pins of your SoC, connect it to UART-USB converter and plug to your PC.
In bootloader sources you will find to which UART port debug messages will go, if your SoC has more than one controller.
In linux's kernel case debug port you could assign through startup string, like bootargs in uboot, or through menuconfig.
But all this stuff depends on have you got UART pins on board or not.