| 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 |

⚠️ Back up your data before using reset codes.

*#0011# – : Provides live diagnostic telemetry for your network environment. It reveals real-time signal strength (RSRP/RSRQ), active band numbers (e.g., LTE Band 3, Band 20), and cell tower identification numbers.

Here are the most useful codes verified to work on Samsung devices running the Android versions typically associated with the Galaxy A7 series.

If you try these, treat them as quick tools: check IMEI, run diagnostics, review firmware and battery info, but avoid codes that alter or reset the phone unless you’re prepared.

If you need to access , install Samsung Service Mode from the Galaxy Store or use *#0011# followed by tapping Back → Key Input → Q → 0000 (requires specific firmware).

Dialing *#06# immediately surfaces your device's on the screen. It bypasses the need to sift through system settings. This is crucial for verifying that the software IMEI matches the numbers printed on the retail box or back glass, ensuring your is authentic and not a clone. 3. Firmware and Version Check: *#1234#