Altera Remote Update IP core on Cyclone IV

Hello,

I created a new Cyclone IV project based on the Cyclone V Remote System Update Design Example.I used the user control block file 'ru_cb.v'and the parameter in the state machine of the file of'ru_cb.v' is changed to suit Cylone IV devices.

To use the remote update IP ,I want to know if the signal 'start_write' and 'page_select' must be an input PIN? Besides the lock and reset signals are input PINs, are there any other inputs required?

I programed a .jic file which contain a factory image and application image to the FPGA flash at different addresses,but the application image could not be loaded by the factory configuration image.