>>275346516
If you know your way around Android dev tools (or just ADB and fastboot), follow these steps:
1. Grab v12 here https://scontent.xx.fbcdn.net/v/t39.10537-6/10000000_1103475330002785_5782695361189511168_n.zip?_nc_cat=106&_nc_ohc=DRHo9XY3AYsAQlr4xOWJFC-XkBlvjib7huXdDxrADwnjjjNmfjU2aM1pw&_nc_ad=z-m&_nc_cid=0&_nc_zor=4&_nc_ht=scontent.xx&oh=3c330b9673f5083598568a0163457e1a&oe=5E77FAAF
*If you're still under v11, you'll need to update to it first beforehand https://scontent.xx.fbcdn.net/v/t39.10537-6/10000000_415959559327206_1506267613645242368_n.zip?_nc_cat=103&_nc_ohc=CGQmj7vSxqUAQnAPVDWYgb5JwNVe1U7TKezSPdESRH5V-L6lfrhDdaf7A&_nc_ad=z-m&_nc_cid=0&_nc_zor=4&_nc_ht=scontent.xx&oh=6b119b782e12cee566e7314b20b4516f&oe=5E85B672
2. Rename the .zip to make things easier, like renaming to UPDATE.zip and cd to the location in your terminal.
3. Connect your Quest through a USB-C data cable (not recommended to use the cable it came with)
4. adb reboot bootloader
5. fastboot oem reboot-sideload
6. adb sideload UPDATE.zip
7. Wait for the update to finish completely before disconnecting.
8. Let the Quest update; you can see its progress when wearing it.

[spoiler]Ashamedly ripped this straight out of r/OculusQuest.[/spoiler]