Custom board with two AD9361 : unable to boot the design

My team and I have designed a RF board containing two AD9361 with only their RX pins routed to one FMC connector. The RX board will be connected to a ZC706.

With the help of a previous post on the forum, I modified the Zynq design from the fmcomms5, to change the xdc and change the IODELAY_CTRL parameter to use the pinout from only one FMC connector. 

However when generating the BOOT.bin file, I observed that the file is way bigger than the one given by AD. And when plugging the board and trying to start it with an SD card, nothing happens. The computer screen is black. 

Do you have any idea on where I can try to find a mistake ? 

Thanks in advance !