5ghz Hotspot tethering error workaround

[agorax1]

I noticed since August Update I can't turn on 5ghz hotspot anymore.
After some experiment, finally I can turn on the hotspot using some trick.

1. Turn on Developer mode first (Google it!!)
2. Navigate to Developer Options > Networking > Tethering hardware acceleration, disable the toggle.
3. Turn on your mobile data (REQUIRED). Required to trigger the 5GHz hotspot frequency.
4. Navigate to Connections > Mobile Hotspot and Tethering > Mobile Hotspot > Configure.
5. Change the band preference to 2.4 GHz first. (REQUIRED !!!). 
6. After Mobile hotspot established go back to Configure.
7. Change the preferred band to 5GHz, then Save.
8. Enjoy.

You can even use it while connect to another WiFi network. It looks like the error is stemmed from OneUI conflict with android 12 Wifi AP/AP concurrency function. 

[WildRuss]

\You need to set it to 2.4ghz and 5ghz for it to work

[DenizDezigner]

Galaxy tab S10 Ultra 5G missing 5GHz band for hotspot share as well.

On tab S9 with EUX region there is a slider so you can choose the bands for sharing a hotspot.

On tab S10 with XXV region there is 2.4GHz choice only in the locked line, so you can't modify it.

On tab S10 with EUX region there is - 2.4GHz - or - 6GHz WPA3 WiFi 6 - choices only, and nothing about 5GHz.

Samsung blocked 5GHz for some reason, so at this moment tab S10 is more inferior than tab S9.

I take it as a hoax because there is no warning of such an inferiority and I wouldn't buy an S10 knowing it.