📱 40+ Redmi Secret Codes That Actually Work in 2026

Hidden Features • Engineering Mode • Hardware Test • Battery Diagnostics

ℹ️ About This Guide

Redmi smartphones include many hidden secret codes that allow you to access engineering mode, hardware testing, battery information, network diagnostics and advanced system settings without installing any third-party application. These codes work on most Redmi devices running MIUI and HyperOS.

⚠️ Important Notice

Some Redmi secret codes may not work on every device because MIUI version, HyperOS version, Android version, security patches and hardware models are different.

*#06#

Purpose: Check IMEI Number

Displays your phone's original IMEI number. Useful for:

• Warranty Verification
• Device Registration
• Lost Phone Identification
• Network Verification

*#07#

Purpose: SAR Information

Displays radiation safety information for your Redmi smartphone.

*#*#4636#*#*

Purpose: Testing Menu

Opens a hidden menu containing:

• Phone Information
• Battery Information
• Usage Statistics
• Wi-Fi Information

🔥 Monitor battery condition and charging details using these hidden Redmi codes.

*#0228#

Purpose: Battery Status

Shows:

• Battery Voltage
• Battery Health
• Battery Temperature
• Charging Status

*#*#4636#*#*

Purpose: Battery Information

Displays detailed battery statistics including health, temperature and charging condition.

*#0*#

Purpose: LCD & Hardware Test

Allows testing of:

• Display
• Touch Screen
• Camera
• Speaker
• Microphone
• Sensors

*#*#6484#*#*

Purpose: CIT Hardware Test

Opens Redmi's built-in hardware diagnostic menu for testing different phone components.

💡 Pro Tip

Before buying a used Redmi smartphone, run these secret codes to check the battery, display, touch screen, sensors and camera for hidden hardware problems.

*#*#34971539#*#*

Purpose: Camera Information

Displays:

• Camera Firmware Version
• Camera Hardware Details
• Camera Module Information
• Lens Information

⭐ Useful for checking whether the camera hardware is functioning correctly.

*#*#2664#*#*

Purpose: Touch Screen Test

Checks:

• Touch Accuracy
• Touch Response
• Dead Touch Areas

🔥 Use these hidden codes to test important Redmi phone sensors.

*#*#0588#*#*

Purpose: Proximity Sensor Test

Checks whether the screen automatically turns off during phone calls.

*#*#232331#*#*

Purpose: Bluetooth Test

Tests Bluetooth hardware and wireless communication.

*#*#232338#*#*

Purpose: Wi-Fi Information

Displays Wi-Fi MAC address and wireless connection details.

*#*#1472365#*#*

Purpose: GPS Test

Checks GPS signal quality and satellite connection.

*#*#1575#*#*

Purpose: Advanced GPS Test

Displays detailed GPS diagnostic information.

*3001#12345#*

Purpose: Field Test Mode

Shows advanced mobile signal and network information.

*#*#7262626#*#*

Purpose: Network Diagnostic

Useful for troubleshooting mobile network issues.

*#*#0289#*#*

Purpose: Audio Test

Checks:

• Speaker Output
• Audio Quality
• Sound Performance

⚠️ Important Note

Some Redmi secret codes may not work on every model because support depends on HyperOS, MIUI version, Android version, security updates and device hardware.

🔥 These advanced Redmi secret codes are commonly used by technicians to diagnose hardware, perform factory testing and access hidden engineering features.

*#*#6484#*#*

Purpose: CIT Hardware Test Menu

Provides access to:

• Display Test
• Touch Test
• Battery Diagnostics
• Sensor Test
• Camera Test
• Speaker & Microphone Test

*#*#64663#*#*

Purpose: QC Test Mode

Opens Qualcomm hardware diagnostics on supported Redmi devices.

*#*#0673#*#*

Purpose: Audio Test

Tests the microphone and speaker functionality.

*#*#0289#*#*

Purpose: Melody Test

Plays built-in sounds to verify speaker quality.

*#*#0842#*#*

Purpose: Vibration Test

Checks whether the vibration motor is working correctly.

*#*#2663#*#*

Purpose: Touch Firmware Information

Displays firmware details of the touch panel.

*#*#2664#*#*

Purpose: Touch Test

Checks screen responsiveness and touch accuracy.

*#12580*369#

Purpose: Software Information

Displays firmware version and software build details.

*#*#1111#*#*

Purpose: FTA Software Version

*#*#2222#*#*

Purpose: Hardware Version

*#1234#

Purpose: Firmware Version

*#9090#

Purpose: Diagnostic Configuration

Provides advanced diagnostic and debugging configuration on supported Redmi smartphones.

✅ Final Thoughts

These 40+ Redmi Secret Codes help you unlock hidden menus, access the CIT Hardware Test, check battery health, diagnose hardware, test sensors, verify cameras and troubleshoot your Redmi smartphone. Some codes may vary depending on your Redmi model, HyperOS version, MIUI version and Android security updates.