The Samsung Galaxy S8 and S8+ were recently updated to Android Oreo, and among its new features includes a full band selector (replacing the old service menu that was disabled with the security patch of November / 2017)
This mode lets you choose a specific network (as does the test menu in AOSP) and also choose a band specified within all supported.
Now, the only known way to enter this menu is through an activity manager (Nova Launcher or Quickshortcutmaker for giving examples) and look for the com.samsung.HiddenNetworkSetting app
When you find the activity, you must execute it and the next window will appear:
https:// imgur .com/a/61DJo
Where you can choose the network mode. If you open the side menu, you will see the other 2 options (Band Selection and 5G SA Mode) then select "Band Selection" and the following will appear:
Here you can choose the available bands, and then activate the slider that says "Selection". In this way, the band chosen as the default (Remember that if you select only one of the bands, you will not have CA)
I remember again that this method only works with builds based on Android 8.0 Oreo (RAP or RB7)
I remember again that this method only works with the builds based on Android 8.0 Oreo (RAP or RB7) and I do not know if it will work on other models besides the international variants of the Galaxy S8 or S8+ (SM-G950F / FD and SM-G955F / FD)
That is all! For now, I will be alert to possible doubts, but I remember that this app is only available through a hidden activity within the Oreo update, and I do not know if it will be maintained in successive updates. I will continue informing.
This mode lets you choose a specific network (as does the test menu in AOSP) and also choose a band specified within all supported.
Now, the only known way to enter this menu is through an activity manager (Nova Launcher or Quickshortcutmaker for giving examples) and look for the com.samsung.HiddenNetworkSetting app
When you find the activity, you must execute it and the next window will appear:
https:// imgur .com/a/61DJo
Where you can choose the network mode. If you open the side menu, you will see the other 2 options (Band Selection and 5G SA Mode) then select "Band Selection" and the following will appear:
Here you can choose the available bands, and then activate the slider that says "Selection". In this way, the band chosen as the default (Remember that if you select only one of the bands, you will not have CA)
I remember again that this method only works with builds based on Android 8.0 Oreo (RAP or RB7)
I remember again that this method only works with the builds based on Android 8.0 Oreo (RAP or RB7) and I do not know if it will work on other models besides the international variants of the Galaxy S8 or S8+ (SM-G950F / FD and SM-G955F / FD)
That is all! For now, I will be alert to possible doubts, but I remember that this app is only available through a hidden activity within the Oreo update, and I do not know if it will be maintained in successive updates. I will continue informing.
