Samsung smartphones have hidden menus and secret codes to view and test various functions and features on your Galaxy M21s.
Unlock the hidden potential of your Samsung Galaxy M21s by exploring secret codes and hidden menus. In this comprehensive guide, we will provide you with detailed insights into the secret codes available for your Galaxy M21s. These codes will help you access advanced features and options on your device, making your smartphone experience even more exciting.
Let’s learn how to view and access them on your Samsung Galaxy M21s.
About Phone: Samsung Galaxy M21s
Galaxy M21s comes with 4 RAM variants, Android 10, One UI 2.5 OS and runs on Exynos 9611 (10nm) processor.
How To Use Secret Codes, Hidden Modes & Menus on Galaxy M21s
Check out the below dial codes to access hidden menus and features on your Galaxy M21s
IMEI Number on Galaxy M21s : *#06#
Dialing *#06# on your Galaxy M21s’s keypad will reveal your phone’s IMEI number and Serial Number. This code is essential for tasks like reporting a lost or stolen device or unlocking your phone for use on another carrier.
Test Mode on Galaxy M21s : #0#
The #0# code opens the Test Menu, where you can evaluate various features of your Galaxy M21s. Test the LCD Display, Touch Screen, LED Light, Front and Back Cameras, and more, ensuring that all components function optimally.
Battery Status on Galaxy M21s : *#0228#
Use the *#0228# code to access Battery Status information, providing insights into the health of your Galaxy M21s’s battery, ensuring it’s in top condition.
USB Settings on Galaxy M21s : *#0808#
Entering the *#0808# in the dailpad allows you to configure how your Galaxy M21s is recognized when connected to a PC or laptop via a USB cable. Choose between modes like Mass Storage, MTP, ADB, and more, for flexible connectivity.
Firmware Version on Galaxy M21s: *#1234#
Enter *#1234# on your Galaxy M21s dialpad.
This code displays your Galaxy M21s’s Firmware Version and Model Name, which can be essential when seeking support or performing software updates.
Advanced Firmware Version on Galaxy M21s: *#2663#
Unlock the Advanced Firmware Version menu on Galaxy M21s with *#2663# and access details like TSP FW Version, Touch Key FW Version, MCU/BINFW Version, and WIFI Version, allowing for in-depth analysis of your device’s firmware.
Service Mode on Galaxy M21s: *#0011#
The *#0011# code grants you access to Service Mode on Galaxy M21s, where you can check Network Connection details and Serving Cell Information, helping you troubleshoot network issues.
Advanced Service Mode on Galaxy M21s: *#26833662#
Enter *#26833662# to unlock Advanced Service Mode, enabling you to test various aspects of your Galaxy M21s, including network connections, SIM information, antenna performance, and software versions.
He is the founder of howtodoninja.com and is an experienced tech writer and a cybersecurity enthusiast with a passion for exploring the latest technological advancements. He has 10 years of experience in writing comprehensive how-to guides, tutorials, and reviews on software, hardware, and internet services. With an interest in computer security, he strives to educate users by writing content on how to use technology, and how to also protect their smart devices and personal data from cyber threats. He currently uses a Windows computer, and a Macbook Pro, and tests hundreds of Android phones for writing his reviews and guides.
