Nothing changes when doing "iw reg set BO"

I know these kind of question already exists but it's from 2016 and doesn't work for me. I'm using the newest Kali version it's installed on my laptop. So I wanted to "iw reg set BO" so I can increase the txpower. But I get this:

global country 00: DFS-UNSET (2402 - 2472 @ 40), (6, 20), (N/A) (2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN (5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN (57240 - 63720 @ 2160), (N/A, 0), (N/A)phy#1 country 99: DFS-UNSET (2402 - 2472 @ 40), (N/A, 20), (N/A) (2457 - 2482 @ 40), (N/A, 20), (N/A), PASSIVE-SCAN (5140 - 5860 @ 40), (N/A, 30), (N/A), PASSIVE-SCAN

So it didn't do anything.