How to change WLAN channel to different region

Hi,
is it possible to change the WLAN channel to a different region?
I’m able to set the region to i.e. US using ‘iw reg set US’ and get the following output:

[12358.193242] cfg80211: Regulatory domain changed to country: US
[12358.199172] cfg80211:  DFS Master region: FCC
[12358.203384] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[12358.213285] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[12358.221343] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[12358.230870] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2300 mBm), (0 s)
[12358.240403] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
[12358.248524] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[12358.256552] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)

But when I try to setup an AP using a channel within this region it doesn’t work. Calling ‘iw list’ also returns the channels within my region:

* 5180 MHz [36] (20.0 dBm)
* 5200 MHz [40] (20.0 dBm)
* 5220 MHz [44] (20.0 dBm)
* 5240 MHz [48] (20.0 dBm)
* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
  DFS state: usable (for 56 sec)
  DFS CAC time: 60000 ms
* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
  DFS state: usable (for 56 sec)
  DFS CAC time: 60000 ms
* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
  DFS state: usable (for 56 sec)
  DFS CAC time: 60000 ms
* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
  DFS state: usable (for 56 sec)
  DFS CAC time: 60000 ms

Thank you,
Thorben

Hi Thorben, per local wireless certification regulations, the unit is not permitted to change WLAN regions or use uncertified channels. Only the US devkit SKU ordered from the US will have the US region code fuse set at the factory.

Ok, thank you for your answer.
I assume that, because of that fuse, every othere TX2 module is irreversible locked to a specific region?

Yes, this is correct. It would be against regulations to allow users to change region code and operate using wireless frequencies outside of the legal, approved frequencies of the region.

Ok, thanks again.
In case I have a US devkit SKU, how would I change the region? Would it be enough to call ‘iw reg set US’? Also, could I change it multiple times?