If you come across too many setting problems and want to reset to factory default for your ViewSonic projectors, you can do as following steps.

How to Reset ViewSonic Projectors to Factory Default?
How to Reset ViewSonic Projectors to Factory Default?
  1. Find setting on your Home Screen, and enter the setting.
  2. Select Advanced Settings.
  3. Then select Reset to Factory Default.
  4. Click Yes. Then you can reset your ViewSonic projector to factory default.
ViewSonic X10-4K

This post takes ViewSonic X10-4K as an example, and different ViewSonic models may have slight differences in terms of the user interface.

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