So it can be determined what exactly your specific issue is, I'd advise opening a ticket (#create-ticket) in the Echo VR Lounge Discord server and going into some detail as to what problem you're experiencing.
There are more steps than just downloading the APK. I recommend once in the Echo VR Lounge Discord server going to the #install-quiz and working through it (direct link: discord.com/channels/779349159852769310/1268703999482138676)
@@xerosilver42 I Followed the troubleshoot guide and couldn't find the ready at dawn and echovr.exe file (went to program files/oculus and nothing appeared). Know what I should do?
Since this video there are a couple of newer methods. I recommend starting with echovr.net to review those options. If you get stuck, ask your question in the Echo VR Lounge Discord server: discord.gg/echo-vr-lounge
The quickest way to get answers is in the Echo VR Lounge discord. But here is the answer to your specific question: www.androidauthority.com/how-to-update-meta-oculus-quest-3355344/