Xbox companion app won’t sign in on iPhone 12 via live.com

Hi Teacake! My name is Ricardo an independent advisor ready to help you with this situation!

Could you please share Information about what happens when you try to sign in?

Same, Hear in CLT, NC can't even sign in via iphone with App

1) Turn on your Xbox 360.

2) Navigate to the Settings section and then select "System" to open the System Settings screen.

3) Select "Console Settings" to open the Console Settings window.

4) Highlight "Xbox Companion" to open the Xbox Companion screen. On the right side of the Console Settings window, you'll see that the current setting for the Xbox Companion is unavailable.

5) Select "Xbox Companion" to open the Xbox Companion window.

6) Select "Available." You'll automatically return to the Console Settings page where Xbox Companion is highlighted.

7) Ensure your iPhone is connected to the same Wi-Fi network as your Xbox 360 and then open the My Xbox LIVE app you just installed on your iPhone.

8) Place a finger on your iPhone screen and flick it to the left three times to navigate through three sets of screens until you arrive at the Quickplay screen.

9) Tap the green "Connect to Xbox" button at the top of the Quickplay screen. The Connect to Your Console screen appears on your iPhone screen, telling you how your iPhone and Xbox 360 should be set up before you proceed.

10) Tap "Next." The green Connect to Xbox icon at the top of the Quickplay screen features a spinning icon and says "Connecting." A message appears on your Xbox 360 screen notifying you that you just connected to your Xbox 360 via Xbox Companion. Additionally,
the green box at the top of the Quickplay screen turns into a gray box that says "Choose something to start on your Xbox." Beneath the gray box will be a list of apps installed on your Xbox 360 and any game that's currently in your console.

11) Tap the icon featuring three dots in the lower-right corner of the app to bring up a menu and then select "Controller." A black screen appears on your iPhone that features an "A" with four arrows around it on the top half of the screen, and then the
"Y," "X" and "B" buttons on the lower half of the screen. You can use this screen to navigate through the menus on your Xbox 360's screen.

12) From the Quickplay menu you can select the game that's in the Xbox 360 console to launch the game on the Xbox 360, or you can select an app to launch that app on your Xbox 360. Some apps, such as the Netflix app, bring up the controller on your iPhone's
screen and give you the option of navigating the app using that controller.

I hope that this helps and you get it working

They said at e3 the companion app will work with all phones it's just the fallout shelter game that's iPhone only

The computers Microsoft Account you're signed into, is that the account you're trying to access the files from? I'd also open the Xbox App on the computer (since updated to the Xbox Console Companion app) and check that you're logged into the right account
there. If not, you can sign out via Settings in that app, sign in as the account you want, and then test Sudoku login then.

Let us know if you're signed into the right account via the app or the computer profile and it's still not getting the right profile.