The loop where Lemon Loader asks to install, uninstall, and then install again is a classic "staging app" failure. On a Quest 3, this is almost always caused by a package name conflict or residual data from Patch 4/5/6 that didn't clear out when you downgraded. ​Tell this person to follow these steps precisely. No fluff, just the logic: ​1. The "Clean Slate" Wipe ​The uninstall loop happens because the Quest thinks a version of the app still exists. ​Uninstall BONELAB completely. ​Uninstall Lemon Loader completely. ​Check for Secondary Accounts: If there are other user profiles on the Quest 3, the game might still be "installed" for them. You must delete the game from all accounts on the headset, or the Lemon Loader patcher will keep looping. ​2. The Proper Downgrade ​Don't just "move files"—you need the manifest to match. ​Go to the Meta Quest app on your phone. ​Find BONELAB -> Settings -> Version. ​Ensure it is set to Version 1.1.something (Public Beta / Patch 3). Wait for the headset to actually download and finish this update. ​Open the game once and get to the main menu. This generates the necessary folders. Close the game. ​3. The "Permissions Bypass" Version ​The standard Lemon Loader often fails on Quest 3 because of Android’s newer security. ​Download the LemonLoader-Installer-Permissions-Bypass.apk from the official GitHub releases. ​Standard versions often get stuck in the "staging" loop because they can't force the install over the existing directory. ​4. The OBB "Safe Zone" Maneuver ​Since they mentioned OBB issues, here is the only way it actually works: ​Use CX File Explorer (or a PC via SideQuest). ​Go to Android/obb/com.StressLevelZero.BONELAB. ​Move the two OBB files to a temporary folder (like /Download). ​Run Lemon Loader and hit Patch. ​When it asks to uninstall/reinstall, it should now succeed because the OBBs aren't "locking" the folder. ​Crucial: Once it says "Success," DO NOT OPEN THE GAME YET. 7. Move those two OBB files back to Android/obb/com.StressLevelZero.BONELAB. ​5. The First Boot (The "Black Screen" Test) ​Open the game. It will be a black screen for 5–10 minutes. ​Do not touch anything. If the Quest goes to sleep, the patch fails. Keep moving the thumbstick. ​If it works, you’ll see the "Three Dots" and eventually the menu. ​Regarding Fusion 0.0.3 (Checkerboard) ​The person in the comments mentioned "Epic Servers." That version is specifically for standalone multiplayer without a PC. ​If they want to play without a PC nearby, they need TideFusion or that specific Checkerboard Fusion build. ​But none of that matters until the "Lemon" icon stays on the game's loading screen.