How To Use Secret Codes On Samsung Galaxy A03 C... ((better)) Jun 2026

: Displays your device’s unique identification numbers. This is critical for warranty claims, insurance, or if your phone is lost or stolen.

Displays comprehensive device information. You will see:

Secret codes are special sequences of numbers and symbols (e.g., *#0*# or *#06# ) that you dial into your phone’s keypad, just like a phone number. Once entered, the phone’s firmware immediately interprets the command and opens a hidden menu or performs an action. How to Use Secret Codes on SAMSUNG Galaxy A03 C...

Open the native Phone dialer app (the green icon with a keypad). Step 2: Type the secret code exactly as shown, including all asterisks ( * ) and hashes ( # ). Do not press the call button. Step 3: The code will execute automatically after typing the final # . A menu will pop up instantly.

To use secret codes on your , simply open the standard Phone/Dialer app and type the specific string of characters (usually starting with *# ). Unlike standard calls, these codes typically execute automatically as soon as the final symbol is entered, opening hidden diagnostic menus or displaying system information. Essential Secret Codes for Galaxy A03 Core : Displays your device’s unique identification numbers

Instantly tests speakers, microphone, and headphone jack. Use case: If you're not getting sound during calls or media, run this. Options include:

This is arguably the most useful

These codes will erase data. Do not run them unless you intend to sell the phone or fix a bootloop.

Displays your device's unique identifiers, which are necessary for service or reporting it stolen. General Test Mode You will see: Secret codes are special sequences