Dial these sequences straight from your phone’s keypad to unlock hidden system menus, run hardware tests, or pull up device specs. No third-party apps required. While Google has tightened security on Android 13 and 14, most OEMs still leave these USSD shortcuts active. Keep a backup handy before running anything that touches system settings.
How to Run Hidden Menu Codes
Open the native Phone app and type the sequence exactly as shown. The diagnostic screen usually pops up automatically without pressing the call button. If the dialer ignores the input, your carrier firmware or manufacturer skin may have disabled that specific shortcut.
Caution: Several of these shortcuts trigger system resets or wipe partitions. Always back up critical data first. Stick to verified sequences—random forum codes can brick your device or corrupt system files.
Essential Android Secret Codes by Category
System Info & IMEI Lookups
| Code | Function |
|---|
*#06# | Display IMEI number (universal across all devices) |
*#*#4636#*#* | Phone information, battery stats, usage data, Wi-Fi info |
*#*#12580*369#*#* | Software and hardware version details |
*#*#1111#*#* | Software version (Samsung service menu) |
*#*#2222#*#* | Hardware version (Samsung service menu) |
Hardware & Component Tests
| Code | Test Target |
|---|
*#*#0*#*#* | LCD/Display panel check |
*#*#2664#*#* | Touchscreen responsiveness |
*#*#0842#*#* | Vibration motor & backlight |
*#*#0673#*#* | Audio output & speaker quality |
*#*#0289#*#* | Melody playback & audio routing |
*#*#0588#*#* | Proximity sensor calibration |
*#*#3264#*#* | RAM version verification |
Connectivity & Sensor Checks
| Code | Function |
|---|
*#*#34971539#*#* | Camera firmware status & update flag |
*#*#1575#*#* | GPS signal & satellite lock test |
*#*#232331#*#* | Bluetooth module diagnostics |
*#*#232338#*#* | Wi-Fi MAC address display |
*#*#1472365#*#* | Rapid GPS connectivity check |
Battery & Power Diagnostics
| Code | Function |
|---|
*#*#4636#*#* | Battery history, temperature, voltage, chemistry type |
*#0228# | Samsung battery status (voltage, current, temp readout) |
Factory Reset & Backup Shortcuts
Caution: These commands erase user data or restore factory partitions. Back up everything before proceeding.
| Code | Function |
|---|
*#*#7780#*#* | Soft factory reset (clears settings, preserves media) |
*2767*3855# | Hard factory reset (wipes entire device, Samsung) |
*#*#273282*255*663282*#*#* | Quick media backup to SD card (Samsung) |
Why These Shortcuts Stop Working
Google restricted deep-level USSD access starting with Android 13 to patch security vulnerabilities. Pixel devices block many legacy codes outright, while Samsung and Xiaomi retain broader access through their custom skins. Carrier-branded firmware often strips diagnostic menus to prevent accidental bricking. If a sequence fails, try a stock dialer app or check whether your OEM provides an equivalent setting inside the Settings menu.
App-Based Fallbacks
When dialer codes get locked down, these utilities replicate the same functionality without requiring root access:
- Hidden Settings for Android — Unlocks buried system toggles and developer options
- Device Info HW — Full hardware breakdown including sensors, battery health, and storage metrics
- Phone Info ★ Samsung — Curated list of Samsung-specific USSD menus and diagnostic tools
