Secret Codes
2026
Phone-first Android MMI, USSD, diagnostics and OEM service-menu reference. Tap supported codes to hand them directly to your Phone app.
Use care. Many codes execute as soon as the final character is entered. Do not change radio, modem, CSC, NV, USB or calibration settings unless you understand the effect. Reset and wipe codes are intentionally not tappable.
No matching codes.
Sources and verification
Codes are firmware, model, region and carrier dependent. These sources were used to cross-check current and legacy behavior.