Change firmware version in 5 GHz Integrated Radio

I have some 5 GHz Integrated Radio have firmware version: U-Boot 9344_PX 1.1.4.e (Jul 25 2016 - 17:49:34)

and other U-Boot 9344_PX 1.1.4.e (Jun 14 2016 - 10:19:33)

the second has Subscriber Module Scanning range more than the first how I can fix it
on 20Mhz:
first : 4920-5865
second : 4920-5970