I have a custom design based on the Sabre imx6solox. I want to boot from SD. Mfg tool hangs up after jump to Ramkern

[marshalllittle]

ModuleID[2] LevelID[10]: *********MxHidDevice[02CF72F0] Jump to Ramkernel successfully!**********

ModuleID[2] LevelID[10]: CmdOperation[0], current state command has been finished and the last command is successful, so SetEvent(hDevCanDeleteEvent)

Will not go further.