The operating system Android N revolutionized the management and customization of Android devices, incorporating essential new features and hidden functions that few users know about and take full advantage of. If you want to get the most out of your phone or tablet, discover secret menus, perform diagnostics, improve privacy and security, you need to know firsthand the secret codes, hidden menus and special combinations of Android N. This is the definitive, updated and comprehensive guide, where you will learn how to take advantage of all these features like a true expert.
Android N's big improvements: experience, productivity, and security
- Renewed interface and settings: Android N brought a new configuration interface With a slide-out side menu, making it easy to directly access any setting without navigating through repetitive menus. This improves efficiency and user experience.
- Improved application and notification management: Now it is possible close all apps with one tap, optimizing RAM and performance. Notifications are also managed granularly, allowing you to mute, block, or customize alerts for each app easily and securely.
- Advanced multilingual support: The ability to add multiple languages and select their preferred order facilitates use in multilingual contexts and optimizes customization for international users.
- True multitasking and split screen: Android N universalizes the split screen, allowing you to run two apps simultaneously, adjust the size of each window, and enable true multitasking without restrictions.
- Security and privacy updates: Permission control, system protection, and advanced individual app privacy management have been strengthened, adding protection against unwanted apps and external threats.
What are Android N secret codes? Types and warnings
The Android N secret codes These are sequences of digits, characters, and symbols that, when entered into the phone app as if you were making a call, unlock hidden menus and features reserved for technicians, developers, or advanced users. These codes allow everything from hardware testing and diagnostics to accessing sensitive system information, critical changes, resets, backups, and much more.
Main types of codes:
- USSD codes (Unstructured Supplementary Service Data): They are mainly used for operator services, balance inquiries, statistics, and network and SIM management.
- MMI codes (Man Machine Interface): Specific to each manufacturer or version, they open diagnostic menus, hardware tests, internal adjustments and hidden configurations exclusive to the terminal.
Some key warnings before using secret codes:
- Caution: Many of these codes can modify or erase data, change sensitive settings, or reset the device. If you're unsure of the effect, do your research before running them.
- Compatibility and risks: Not all codes work on all phones, brands, or Android versions. Some may be locked or vary depending on the model or version.
- They do not require external apps: These codes are entered into the phone app's keypad; you don't need to download any third-party apps to use them.
- Immediate function: After entering the code, many are executed immediately, without having to press the call button.
- Risks in use: Improper use can affect the phone's performance, cause data loss, or leave the device in factory settings.
How to use Android N secret codes: steps and recommendations
- Open the phone app just as if you were going to dial a number to make a call.
- Enter the exact code desired, respecting symbols, asterisks and hash marks.
- In most cases, the function is executed automatically upon completing the code. If nothing happens, try pressing the call button.
- No need to call anyone, the function is activated by the code.
- Some codes require an active SIM, network, or even a specific device brand.
Detailed list of Android N secret codes: explanation, categories, and uses
General diagnostic and information codes
- * # # 06: Displays the mobile phone's IMEI (unique identifier, essential for reporting thefts, unlocking, and warranty issues).
- * # # 07: Displays the SAR (Radiation Absorption Rate) value of the device.
- * # * # * # * # 4636: Access to advanced information menu about the phone, battery, consumption, open apps, Wi-Fi network, statistics and many more details.
- * # 0 * #: : Full hardware diagnostic and test menu (screen, sensors, cameras, vibration, etc. Works mainly on Samsung and some compatible models).
- * # * # * # * # 34971539: Displays details about the camera (firmware, number of cameras, resolution, status, and version).
- * # * # * # * # 1111: Check the FTA software version.
- * # * # * # * # 1234: : Check PDA software version (advanced system information).
- 12580 369 * # * #: Information about hardware, model, radio and software (version, build, manufacturing date).
- * # # 7465625: SIM lock or device lock status, useful for unlocked phones or if you are having network issues.
- * # * # * # * # 232338: Displays the MAC address of the Wi-Fi interface.
- * # * # * # * # 2663: Touchscreen information (version and firmware).
- * # * # * # * # 3264: Checking RAM (size, version).
- * # * # * # * # 232337: Bluetooth address of the device.
- * # * # * # * # 2222: Hardware version.
- * # * # * # * # 44336: Information about the operating system version and updates.
- * # * # 273282 * 255 * 663282 * # * # *: Back up all your media files (images, videos, and more).
- * # # 2263: Access to radio frequency band selection (focused on advanced mobile networks).
Test codes, testing and component diagnostics (hardware and connectivity)
- * # * # * # * # 197328640: Service mode, allows you to run speaker tests, calibrate the screen, analyze vibration, change network parameters, etc.
- * # * # * # * # 232339 o * # * # * # * # 526: Advanced Wi-Fi or WLAN connectivity test.
- * # * # * # * # 0842: Screen brightness and vibration test (useful for checking light sensors and backlighting).
- * # * # * # * # 2664: : Touch screen test, detects dead zones and touch response.
- * # * # * # * # 232331: Quick Bluetooth test (detects potential connectivity issues).
- * # * # * # * # 1472365: Quick GPS test/analysis to check positioning.
- * # * # * # * # 1575: Advanced GPS test, analyzes hardware and accuracy.
- * # * # * # * # 0283: Packet loop test, useful for connectivity diagnostics.
- * # * # 0 * # * # *: Test for LCD screens (detects dead pixels, color problems, etc.).
- * # * # * # * # 0289 o * # * # * # * # 0673: Audio test, speakers, microphones and headset.
- * # * # * # * # 0588: : Test proximity sensor (detects if the screen turns off correctly when approaching the face).
- * # * # * # * # 0589: Test ambient light sensor.
- #0782*#: Real-time clock test.
- * # # 9090: Advanced diagnosis.
- * # # 301279: Advanced mobile network configuration, HSDPA/HSUPA bands and technologies.
- * # # 872564: Access to USB settings and registration.
- #0782*#: USB 12C mode control.
- * # # 9900: System dump mode, sysdump (allows you to free up space, clean logs on Samsung, and diagnose resources).
- ##778 (+ call button): EPST menu for advanced configuration, used by technicians and operators.
- * # # 745: RIL dump.
- * # # 746: Debug dump.
SIM card related codes and call/message management
- 05*#: Unlocking the SIM card PIN or PUK (if you have errors when entering the PIN).
- * # * # * # * # 8255: Opens the Google Talk monitoring service, useful for developers and messaging control.
- * 5005 * 7672 #: Displays the SMS message center number (for resetting or diagnosing SMS sending failures).
- * # # 67: Call forwarding status and settings (whether your calls are redirected to your voicemail or another number).
- * 31 #: : Activate caller ID hidden mode when making outgoing calls.
- # 31 #: Disables caller ID hidden mode.
- * 43 #: Activate call waiting (receive call notifications when you are already on a call).
- # 43 #: Disables call waiting.
- * # # 22558463: Resets the call time (total counter of calls made and received).
Exclusive manufacturer codes: Samsung, Xiaomi, Motorola, HTC, Realme, OnePlus…
- * # 0 * #: Samsung Quick Diagnostics (screen, sensors, camera and vibration test).
- * # # 011: Detailed network and service information (Samsung).
- * # # 0228: Displays battery status and advanced diagnostics (Samsung).
- * # # 0283: Test menu (Samsung).
- * # # 0808: Advanced USB Settings (Samsung).
- * # # 1234: Full software and model details (Samsung, OnePlus, Realme…).
- * # # 2663: Touchscreen firmware version (Samsung).
- * # # 7353: Quick test menu (Samsung).
- * # # 9090: Advanced Debugging Tools (Samsung).
- * # # 9900: SysDump and space diagnostics (Samsung).
- * # # 2683662: Advanced Service Mode (Samsung).
- * # # 34971539: Camera firmware details (Samsung).
- * # # 800: Comments and test menu (Realme).
- * # # 888: Engineer mode and PCB number (Realme, OnePlus).
- * # # 6776: Software version (Realme).
- * # # 66: Encrypted IMEI (OnePlus).
- 1+=: 'NEVER SETTLE' on calculator (OnePlus).
- * # * # * # * # 2947322243: Clear internal memory (OnePlus).
- * # * # * # * # 2486: Engineering mode (Motorola).
- ## 7764726: Motorola Droid hidden menu.
- * # * # * # * # 3424: HTC Test Program.
- 786 ## #: : Phone reset menu (caution!) on HTC.
- 3282 ## #: EPST Menu (HTC, Motorola).
- 3424 ## #: HTC Diagnosis.
- 33284 ## #: HTC Field Test.
- 8626337 ## #: Launch Vocoder (HTC).
Special codes for reset and backup
- * # * # * # * # 7780: Standard factory reset (deletes apps and personal information, but not system or external storage files).
- * 2767 * 3855 #: : Complete wipe and restore to original factory state (includes firmware reinstallation; deletes everything, including data on internal storage).
- * # * # 273282 * 255 * 663282 * # * # *: Backup media files (photos, videos, music).
Safety tips and precautions before using secret codes on Android N
- Investigate the effect of each code: Do not enter unknown codes without verifying their function. Some can cause irreversible data loss or a hard reset.
- Make a backup before manipulating the system: Especially if you're going to run codes related to reset, memory, or advanced settings.
- Use only on compatible devices with sufficient battery life: Running hardware tests on low battery power can disrupt critical processes.
- Check if your phone supports the code: Some codes are disabled on certain brands, carriers, or versions.
- Use codes for diagnostics, checks, and safety before buying used mobile phones, when performing maintenance or when troubleshooting.
- Alternatives to codes: Nowadays, there are advanced diagnostic applications, but secret codes allow access to menus that no app can open for system security reasons.
Android N has raised the bar for security, multitasking and customization, but the most valuable things are often out of reach for the average user: secret codes and hidden menus They open up a range of advanced possibilities for diagnosing, customizing, and protecting your device. From hardware testing and system verification, SIM management, backups, resets, and manufacturer-exclusive features, understanding these codes is essential for technicians, advanced users, and anyone who wants to master their Android. If you use them carefully and always understand their purpose, you'll have complete control over your smartphone, improve security, and discover the full potential hidden beneath Android N's surface.