Galaxy S5 Us Cellular Diagnostics Tool [updated] »

: Displays a grid of boxes. Drag your finger across all boxes; they must turn green to confirm the digitizer is working perfectly.

: Within ##7864 , the "Reset" or "View SIN" options can erase device statistics or trigger reactivation. Do not change parameters unless you are a service technician. galaxy s5 us cellular diagnostics tool

The most comprehensive diagnostic tool is a hidden system menu built into the firmware. This menu allows you to manually trigger tests for every major hardware component. : Displays a grid of boxes

The Galaxy S5 U.S. Cellular diagnostics tool is a time capsule to the CDMA era. It’s a powerful, low-level hardware inspector for anyone repairing, unlocking, or verifying an old S5. However, for average users today, the most practical use is the *#0*# LCD test to check for screen burn-in on a decade-old AMOLED display. Use it with caution—one wrong tap in the RTN menu could trigger a factory reset. Do not change parameters unless you are a service technician