And after booting from the secondary filesystem (bootm 0x9f420000) I got
hardware version:WM321-01
loader version:00.00.00.01
software version:01.00.09.14
Which means there are two different firmwares in the remote itself. One is the "original" backup copy.
BTW, With this version my power settings are set to US but 17dBm
root@dji:/# cat /etc/firmware_version
hardware version:WM321-01
loader version:00.00.00.01
software version:01.00.09.14
root@dji:/# iw reg get
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 17), (N/A)
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
root@dji:/# iwinfo
wlan0 ESSID: "Error02"
Access Point: 60:60:1F:0D:C9:05
Mode: Master Channel: 6 (2.437 GHz)
Tx-Power: 17 dBm Link Quality: unknown/70
Signal: unknown Noise: -95 dBm
Bit Rate: unknown
Encryption: WPA2 PSK (CCMP)
Type: nl80211 HW Mode(s): 802.11abgn
Hardware: unknown [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy0