Khadas VIM2 Max 5 Ghz Hotspot (Wi-Fi Access Point) issue

Hello,

I have recently recieved my Khadas VIM2 Max.
This box have Wi-FI card - AP6359SA 2 X 2 MIMO with RSDB.

I ordered this box to use it as Android TV box + Wi-Fi Hotspot 2.4 Ghz and 5 Ghz.
I tried to set Wi-Fi Hotspot, but settings are limited only for 2.4 Ghz band.
Why I can’t choose 5 Ghz or Automatic band setting?

According information found this box should support dual band 802.11 ac Wi-Fi.

I have tried these VIM2 ROMs:
VIM2 Android Nougat V171028 ROM

[ROM] Khadas Vim 2 - SCV1 VTV (AndroidTV Version)

but both ROMs don’t have 5 Ghz or Automatic band setting on Hotspot (Wi-Fi Access Point).

How I can enable this functionality?

Please support.

Thank you,

Dario

Any ideas or comments? Why Khadas VIM2 Max doesn’t have 5 Ghz Hotspot?

I found the below image has the same problem.
VIM2_Nougat_V180209

I tried the same ROM. It seems that the latest ROM didn’t solve this issue also.