Now I want to use imxotp，but before using it，I should enter into the uboot cmd UI，and I dont know how to enter it. Some info told me,when I loaded the uboot via the mfg tool and then uboot cmd UI would show up after the uart was started automatically.
But all of these didnt happen. So I want to know the steps how to do after load uboot in detail. and more importantly, what I used is our customized board. So please help me!