How To Use Secret Codes On Samsung Galaxy M31 Jun 2026

This is arguably the most useful code for Samsung users. It opens the , a dashboard dedicated to testing every hardware component on the device.

Some older Samsung codes are disabled on newer One UI versions or specific carriers. On the M31, these typically do nothing or give an error: How to Use Secret Codes on SAMSUNG Galaxy M31

Unless you are a developer or using Odin (Samsung's flashing tool), leave this on . This is arguably the most useful code for Samsung users