SAMSUNG Galaxy M21 Secret Codes
Here you can find all the secret codes for SAMSUNG Galaxy M21. Check out how to enter hidden mode and use the advanced setting options of Android 10. Let’s get access to secret information about SAMSUNG Galaxy M21.
SAMSUNG Galaxy M21 hidden features
| Code | Description |
|---|---|
| *#06# | IMEI Number |
| *#0*# | Test Mode |
| *#0228# | Battery Status |
| *#0808# | USB Settings |
| *#1234# | Firmware Version |
| *#2663# | Advanced Firmware Version |
| *#0011# | Service Mode |
| *#26833662# | Advanced Service Mode |
1. *#06# Checking the IMEI and Serial Number.
2. *#0*# Test Menu – In this test menu, you can test most functions of SAMSUNG Galaxy M21. LCD display, touch functionality, LED lights, front and rear cameras, etc.
3. *#0228# Battery Status – This code is useful for knowing the information about the SAMSUNG Galaxy M21 battery.
4. *#0808# USB Settings – This menu allows you to change how your SAMSUNG Galaxy M21 is recognized by your PC/Laptop when connected via a USB cable. Modes such as Mass Storage, MPT, ADB.
5. #1234# Firmware version – Here you can check the firmware version and model name of your SAMSUNG Galaxy M21.
6. *#2663# Advanced Firmware Version – You can check the TSP FW version, Touch Key FW version, MCU/BINFW version, and WiFi version in this menu.
7. *#0011# Service Mode will let you check some details like Network Connection details, Serving Cell Info.
8. *#2683662# – Advanced Service Mode This code gives you access to many things in your SAMSUNG Galaxy M21 e.g. you can test things like 2G 3G LTE WIFI etc. and also lots of things to be checked SIM Information, Antenna, All SW Version, IMEI and much, much more enjoy!
