Hi,
my Banana Pi M2+ with Armbian Bionic doesn't see my access point on channel 13. I already set "REGDOMAIN=DE" in /etc/default/crda and also issued the command "iw reg set DE".
"nmcli dev wifi list" shows a lot of other access points on channels 1, 6, 11, but not my own on channel 13.
On the other hand, "iw list" shows:
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm)
* 2472 MHz [13] (20.0 dBm)
* 2484 MHz [14] (disabled)
So the problem might be the Broadcom chip firmware. I found some replacement files here:
http://jwrdegoede.danny.cz/brcm-firmware/
Some of them get loaded:
root@bananapim2plus:~# dmesg | grep brcmfmac
[ 5.166843] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43430-sdio.bin for chip 0x00a9a6(43430) rev 0x000001
[ 5.316277] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f
But no success. Please help!
Carsten
