Atheros AR5006XS does not work correctly on routeros 3.xx

Hi to all,
I have 2 different minipci card bought on ebay with atheros 5006x on board
and 2 routerboard 411 with router os 3.9 on board
(in previous version was 3.02 and 3.011)
but routerboard in any case see only 2,4 ghz band (and not 5 ghz band)
in attach there are the pictures of minipci,
they seem to be identical to mikrotik r52 minipci

there is any solution to see 5ghz band on this minipci ?
(if i put it on my pc they are working correctly on 5ghz band)

Stefano
120497310_tp.jpg
6bd1_1.JPG

I believe is the driver on Mikrotik Board that do not support at 100 % this type of minipci
but they are phisically identical to the R52,
I believe there are only few different parameter on eeprom who is inside the minipci card,
I can confirm that they are working very well on 5ghz if installed on a laptop but i do not understand why
if they are installed on a mikrotik board only the 2.4 side is working

anyone can help me ?

We have never seen such cards. Maybe you are right and the eeprom is different.