I am wanting to install Graphene to my Pixel 3 XL. I unlocked the bootloader and developer mode on my phone, I held down the vol button while pressing the power button and can get to the bootloader screen on my Pixel 3 XL. Windows update installed a Linux subsystem once I was connected the phone to my Windows 10 x64 PC and did a check for updates for Windows. I can get to the Web install method as far as the UNLOCK BOOTLOADER button on the web usb install page but I get a popup window 'Graphene OS wants to connect' that says "No compatible devices found." This is an unlocked phone, bought it brand new shrink wrapped, OEM unlock was not gray and I unlocked the bootloader on the phone menu.

What am I missing, do I need some other resource or step to do to get past this roadblock?

    No help so I guess I learned the help community for Graphene OS is not so good. That is enough to tell me to stay clear of Graphene. I will stay googlefied.

      The community has no obligation to help people. This site is a discussion forum, not a "help community", but there are very nice and knowledgeable people on here who help others with issues/questions who ask for nothing in return. We're not tech support.

      Pixel 3XL is end of life. No software or security updates regardless of whether you use Stock Android or GrapheneOS. You might consider using a newer phone, like Pixel 6 or 7.

      The reason you didn't get any responses is because it sounds like you did everything right. Others who've had issues when they did everything right have causes that are hard to determine...

      Double/triple check prerequisites: https://grapheneos.org/install/web#prerequisites especially the parts about cables and ports.

      Don't use any cable other than the one that came with the phone. Don't use adapters to switch from USB-C to something else.

      If that fails, try another browser, or different computer, or try to flash from a separate phone.

      And if you do get GrapheneOS installed and haven't already left for good after your rude comment, I'd hope you will stick around and contribute to the community and help us help others who run into problems with their GrapheneOS installation.

      You can perform the manual install as well. But I wouldn't recommend installing GrapheneOS on an end-of-life device.

      joecoder yes pretty much ghost town here / should have stayed with reddit as almost every user is online all the time and help each other. attitude among memebers here is not encoruaging adoption

      joecoder i think you have missed this part
      i.imgur.com/FqgkfZJ.png