All custom calling codes and what they do!

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Access a large number of Secret Service menus and other useful options in your Android phone.


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The Android operating system is famous for its hidden features and Easter eggs. One such area is the use of custom dialing codes to access various hidden apps and settings. Some of these codes are universal, which means that you will get the desired output on any Android device, no matter it is a great flagship phone or an inexpensive phone. However, OEM custom skins (eg One UI by Samsung, MIUI by Xiaomi) and carrier-specific models often come with their own set of hidden icons.


Below you can find a set of general as well as device specific Android hidden codes. Try them out and discover some of the most useful secret functions of your phone. If you don’t see your device listed or want to send a new code, send a message to Skanda Hazarika (Scanda in the forums) with all the relevant details.


hidden android codes structure

so called hidden The icons are basically part of the Human Machine Interface (MMI) scheme. These are slightly different from the Unstructured Supplementary Service Data (USSD) codes, although they both begin with an asterisk

followed by numbers consisting of commands or statements. Number groups can be separated by additional asterisks. The message is terminated with a hash symbol (#), but custom MMI codes may end with an asterisk as well.

While USSD codes are used to communicate with mobile network operator servers for list-based information services, mobile money services, and location-based content services, MMI supplemental service codes work completely offline.

Just like USSD, you have to ask for “hidden” icons in the stock dialer app to invoke the corresponding action.

  • *#06# public hidden icons

Displays the IMEI number(s).

  • *#07# Android IMEI Hidden Codes

Displays the specific absorption rate (SAR) value of the device.

  • *#*#225#*#* Android hidden codes SAR

Displays calendar storage information.

  • *#*#426#*#* Android hidden icons calendar Displays Firebase Cloud Messaging

(FCM) Diagnostic page or information related to Google Play Services.

  • *#*#759#*#* FCM Android Hidden Codes Displays RLZ Debug UI

With the unique device ID and other data related to the installation of the application. It is also possible to turn on (and turn off) OEM mode through this interface.

  • *#*#4636#*#* Android hidden codes RLZ patch

Displays information about the phone, battery, and various network statistics.

Special hidden codes for popular Android brands

Generic icons should work on every Android device. If you are looking for OEM-specific codes, take a look at the following index.

  • *#07#
    • Asus
  • .12345+= Displays organizational labels.
    • (must be entered in stock calculator app)

Opens engineering mode.

The Google

Google Pixel devices run an enhanced version of vanilla Android, which means you’re limited to the generic codes listed above.

  • *#*#2486#*#*
    • Motorola
  • *#07#
    • Opens engineering mode. You may need to boot through the “BP Tools” section of the fastboot interface at least once before trying this code.

Displays regulatory information.

  • *#*#372733#*#*
    • Nokia

Opens Service Mode (also known as FQC List).

Nokia Android hidden icon service menu

  • *#*#682#*#*
    • nothing

Opens the offline update tool.

  • 1+= oneplus
    • (must be entered in stock calculator app)

Displays the company logo -

  • *#66#
    • OnePlus Android hidden code calculator

Displays IMEI and MEID in encrypted format

  • *#888#
    • OnePlus Android IMEI Encrypted Hidden Code

Displays the PCB version of the phone's motherboard.

  • *#1234#
    • OnePlus Android version hidden PCB icon

Displays the software version.

  • *#*#2947322243#*#*
    • OnePlus Android hidden code software version

Erases internal memory (use with caution!).

  • *#800#
    • real me

Opens Factory Mode / Notes List.

  • *#888#
    • Realme Android hidden notes about code

Displays the PCB version of the phone's motherboard.

  • *#6776#
    • Realme Android Hidden PCB Code

Displays the software version and additional details.

Realme Android Hidden Information

  • *#0*#
    • Samsung

Opens the hardware diagnostics menu.

  • *#011#
    • Hidden Samsung Android Device Diagnostic
  • *#0228#

Displays the network connection and serves information related to the cell.

  • *#0283#
    • Samsung Android hidden code battery

Opens package rollback settings.

Recover Samsung Android hidden code

  • *#1234#
    • Samsung Android Hidden USB Code

Displays the software version and additional details.

  • *#2663#
    • Samsung Android hidden code software version

Displays the advanced firmware version list.

  • *#7353#
    • Samsung Android Advanced Firmware Hider
  • *#9090#
    • Displays the Quick Test menu.

Displays advanced debugging tools.

  • *#9900#
    • Samsung Android hidden icon for advanced debugging control

System dump mode opens.

  • *#2683662#
    • Unpacking a hidden code system for Android from Samsung

Displays the advanced service mode.

  • *#34971539#
    • Samsung Android hidden icon service mode

Displays advanced information about the camera's firmware.

Samsung Android hidden advanced camera firmware code

  • *#*#73788423#*#*
    • Sony
  • *#07#
    • Displays the service menu.

Displays certification details.

  • *#*#64663#*#*
    • xiaomi

Displays the hardware diagnostics menu (also known as the quality control test menu).

  • *#*#86583#*#*
    • Xiaomi Android QC Hidden Code Test
  • *#*#86943#*#*
    • Activate VoLTE Check.

Activate VoWiFi company check.

We hope this guide helped you get in and out of the hidden menus within Android. We will be updating this guide with more of these codes for specific phones, so check back in the future.

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