Here are the tested Qualcomm Diag Codes for Android 15 versions. Try any of the below codes. Android diagnostic codes, also known as secret codes, MMI codes, or USSD codes, are sequences of numbers and symbols that, when entered into the phone’s dialer, trigger hidden menus or actions. These codes allow users to access device information, perform tests on hardware components, and manage various phone settings.
Qualcomm Diag Codes
- ##663368378##
- ##68276278##
- ##663364636#*#
- ##73694364##
- ##717##
- ##686564##
- ##24744625##
Android secret short codes are numbers you dial to access hidden menus or actions on your phone. You can dial them to test functions, troubleshoot problems, or check information about your device. These codes operate through two protocols: the Unstructured Supplementary Service Data (USSD) protocol and the Man-Machine Interface (MMI) protocol. Both protocols function similarly, requiring you to dial codes to access secret menus.
USSD and MMI codes share the same structure. They start with an asterisk (*), end with a hash (#), and use a combination of numbers, asterisks, and hash symbols in between. You’ll open the phone dialer app to type and dial them. Most codes automatically run when you enter the last hash (#) symbol. Some require you to tap the call button to execute them.
The purpose of both protocols is different. The USSD protocol allows your phone to communicate with your service provider’s computers, which process the request and send a response. It supports secret codes that fetch basic services like balance inquiries and prepaid top-ups without an internet connection or going through a long menu. Meanwhile, the MMI protocol supports secret codes that take you to your phone’s internal settings and functions. That means the phone processes the code without sending a request to the network provider
