Hi ZMaker,
your suggestion does not help to fix my problem. Let me introduce you a root of problem:
BSP 1.0.3 and BSP 1.0.4 are based on Kernel 3.8.7. On a picture below you may see WiFi drivers supported by kernel 3.8.7:
And here is a list of supported WiFi cards by this driver:
Just need to add a required firmware you have mentioned to this folder to enable any of these cards:
But without a correct driver even a firmware will be there it does not help.
With Kernel 3.14.13 it is possible to enable my WiFi card:
Intel Wireless WiFi MVM Firmware support driver provides a support for my 7260 WiFi card:
This driver loads a firmware described by reference you have provided.
I guess a difference between Kernels is clear.
BPS 1.0.3 and BSP 1.0.4 are based on Kernel 3.8.7. So, there are no WiFi support for Intel 7260 and 3160 WiFi cards.