Secret codes & USSD, plus phone diagnostics: battery, sensors, screen & more
Store and manage your USSD & Android Secret Codes — and run built-in hardware tests on your phone.
[ No Root Needed ]
AndroidCodes keeps your secret/USSD code list in one place and now adds a full set of native device tests, so you can check your hardware even on modern Android versions where many older codes no longer work.
SECRET / USSD CODES
- Browse a built-in list of Android secret codes and USSD codes
- Open codes in your phone dialer (operator/network USSD codes are processed and called)
- Add, edit, delete, search and sort your own codes
- Import, export, back up and share your code list with other devices or people
- Save your favorite codes for quick access
HARDWARE TOOLS (no codes required, work on current Android)
- Device Information: model, Android version, security patch, RAM, storage, CPU
- Battery Health and live Charging / Current (mA & watts)
- Sensor Test, Spirit Level, Compass, Proximity, Light (lux)
- Screen / Dead-Pixel test, Scratch Identifier, Touch and Multi-touch tests
- Vibration and Flashlight / LED tests
- Speaker, Microphone, Earpiece, and Headphone / USB-C audio tests
- GPS test (fix, accuracy, satellites)
- Hardware Buttons test
- Full Hardware Test: run every check in one guided pass
ABOUT PERMISSIONS
- Microphone is used only for the live microphone test
- Location is used only for the GPS test (foreground only)
- These are never collected or shared
KEEP IN MIND
- Secret/USSD codes can change some device settings — use them carefully.
- Some manufacturers, Android versions, or dialers may not run certain codes
(many codes require the stock phone dialer, and Android 10+ disabled several
older codes). The hardware tools above work regardless.