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Reset To Factory Settings

Re-creating the entire system folder

Usually, KNULLI updates will NOT require you to re-create your entire system folder. Re-creating the system folder corresponds to resetting to factory defaults. Consequently, it will force you to re-configure a lot of settings manually since they will be gone afterwards! Do NOT do this, unless you are absolutely sure it is required.

As you might already know, all your settings are stored in your userdata/system folder as explained in the Game Storage section.

If your system does not work as expected after you changed a setting and you can't find a way to undo said setting, your issue might still be fixed by resetting the corresponding configuration file or the entire system folder to factory settings. In VERY rare cases, it might also be required to adapt your settings to new KNULLI defaults by replacing/updating some files in that system folder after you installed an update.

The easiest way to achieve that is by just removing either the respective files or the entire folder. During the next boot, KNULLI will replace all the missing files with new files which contain the default settings.

Back up your current settings

If you want or need to re-create a configuration file (or the entire system folder) with default settings, access your userdata folder the same way you always access it. Alternatively, you can use the built-in OD-Commander from the Ports category. Either way, we strongly suggest that you rename the system folder or the files you want to replace by adding a suffix like .bak (e.g., rename from system to system.bak). This way, you will be able to put your old settings back entirely or hand-pick single files/lines from your old settings.

Renaming files/folders with OD-Commander

  • Go to the Ports category.
  • Find and launch OD-Commander.
  • You should already see the contents of your userdata folder on the left side, indicated by the headline /userdata. If you are not there, yet, navigate to /userdata by using up/down on the D-pad to navigate and the OK/Back buttons to enter/leave a folder.
  • Locate the system folder on the left side of the screen.
  • While the focus is on the system folder
    • either enter the folder and locate the single files or subfolders you want to re-create
    • or just stay, if you want to re-create the entire system folder.
  • Once you have moved the focus on a file/folder you want to re-create
    • press X to open the file menu.
    • select Rename.
    • use the on-screen keyboard to rename the file/folder.

Re-create your configuration files

Afterwards, reboot your KNULLI device. It will re-create the missing files and folders from KNULLI defaults. Now, you can either re-configure all your settings via the EmulationStation GUI or you can hand-pick configuration details by comparing your old settings (.bak) with the new ones.