Hello, I want to factory Reset my Google Pixel 7 with GrapheneOS, because I forgot the PIN-Code. When I turn off the Phone and press the POWER and VOL-UP-Buttons for 10-15 secs it doesn't goes into the menu. I have a message that says "Your device is loading a different operating system", as it always does when I turn on the Phone normally, but then the Phone starts normally with no menu or anything. I tried to press it the buttons less than 10 secs and also more than 15 secs, but it always comes to this screen and then the phone starts normally. So how do I reset the phone, when I can't go into the menu to choose the factory reset?