When using Samsung Calculator secret codes:

Touching these can hard-brick your phone or render it unable to connect to any cellular network.

Allows you to draw lines across a grid on the screen. If any grid squares remain blank, it indicates a dead zone where the touch digitizer is failing.

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Often, users search for "calculator codes" when they actually mean . These are entered through the Phone Dialer , not the calculator. However, these are the essential codes for Samsung diagnostics:

Before diving into the list, it’s crucial to understand the following:

Using Samsung calculator secret codes is relatively straightforward. Here's how: