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Unlock Hidden Features: How to Use Secret Codes on Samsung Galaxy A7 Go to product viewer dialog for this item. Your Samsung Galaxy A7
: Clear out the entire text field, close the Phone app completely from your recent apps view, reopen it, and type the code cleanly from scratch. 3. Update or Revert Firmware Modding
Tests the device's vibration motor and backlighting.
: Enter the specific string of characters (usually starting with *# and ending with # ). how+to+use+secret+codes+on+samsung+galaxy+a7+2+work
These codes are for stress-testing your phone's physical components. They can help you identify a faulty part.
This is the ultimate testing tool for Samsung devices. It opens a menu allowing you to test:
For the Samsung Galaxy A7 (2018 model specifically), *#0*# is the most useful — it lets you test the screen, vibration, and sensors without rooting. Unlock Hidden Features: How to Use Secret Codes
This button can sometimes reset the battery gauge if it is miscalibrated, though it should be used sparingly as it can temporarily cause erratic percentage readings. 📱 Device Information
: Codes like *#0*# are primarily used by technicians to verify that the screen, speakers, and cameras are functioning correctly before or after a repair.
| Code | What It Does | Category | | :--- | :--- | :--- | | *#06# | Shows your IMEI number (unique phone ID) and Serial Number | 📱 Device Info | | *#1234# | Displays the current software and firmware versions (PDA, CSC, Modem) | ⚙️ Software Info | | *#12580*369# | Shows a full breakdown of software & hardware info, plus manufacturing date | 🧠 System Info | | *#2222# | Reveals the hardware revision number of your device | 🔩 Hardware Info | | *#34971539# | Opens the camera firmware update menu and detailed module info | 📸 Camera | | *#0228# | Shows battery health stats: voltage, temperature, and capacity | 🔋 Battery | | *#0011# | The main , revealing real-time network, signal strength, cell tower info, and Wi-Fi details | 📶 Network | | *#0808# | Changes how your PC recognizes the phone via USB (MTP, ADB, Mass Storage) | 🔌 USB Config | | *#2663# | Displays and allows updating of your touchscreen (TSP) firmware version | 🖱️ Touchscreen | | *#9900# | System dump mode. Useful for clearing system logs to free up storage or for advanced debugging | 🛠️ System Dump | | *#7353# | An alternative test menu with quick audio tests, vibration, and camera checks | 🎛️ Quick Test | Update or Revert Firmware Modding Tests the device's
Use these codes to pull up technical details about your phone's software, hardware, and network.
Used to delete dumpstate/logcat junk files to boost phone speed. *#0228#
Restores settings without deleting internal data; use with caution. Important Troubleshooting Tips How To Unlock Samsung Galaxy A72 by Unlock Code Generator
A highly useful menu for freeing up storage. You can delete temporary logcat dumps ( Delete dumpstate/logcat ) to instantly reclaim internal memory without wiping personal data. Step-by-Step: Testing Hardware Using the General Test Mode
