Netgear R6350: max power for 5GHz lower after upgrading to 21.02 RC1

Installing and Using OpenWrt Network and Wireless Configuration
16

Hi @Borromini, I found this thread when I got the same problem on flashing a brand new R6350 with 21.02.01.
After reading this thread, I tried the following - all of them have the 5 Ghz wifi max transmit up to only 6 dbm:

  1. nmrpflash factory img, then flash 21.02.0-rc2
  2. nmrpflash factory img, then flash 19.07.8
  3. nmrpflash factory img, then flash 19.07.1

I tried the last 2 because I thought they would have predated the "bug" when upgrading from factory img.

I would appreciate your suggestions what other images to try, when do you believe this bug was introduced? And how do we report this bug so they can revert to the working one in the latest builds?

Edit: I flashed your Sercomm patch builds for the R6850 from the R6850 low power thread. It turned the R6350 into an R6850, and wifi looks fixed now, will test some more later.
Questions: now should I just stick to R6850 builds rather than R6350 builds?
If I flash a later stable build, is it going to unfix the problem again?

Thank you!