Hello ..I do have similar issue with an ANRAN IP Camera broke after an official firmware update ...doesn't giving any IP adress anymore ...i presume i do have to go back to previous firmware but without any IP adress ..must proceed through serial interface...currently struggling with U-Boot 2010.06-svn
At the moment i can access the serial console ..which doesn't seem to respond to my ctrl+c messages ...allowing u-boot to proceed and load linux kernel without allowing me to interact at lower level to switch the firmware...
Any idea how could i force the camera to stop the u-boot process ...tried to send \C, ^C, \03, \0x03, \Z, \U ..without any success...no clue about how can i force U-Boot to stop loading process ?
Regards,
Stephane