How to use this tool
- 1Open the phone (dialer) app.
- 2Type the code exactly as shown.
- 3The matching menu opens automatically, without placing a call.
- 4Use the copy button to avoid typos.
About this test
Secret codes (USSD/MMI codes) are sequences typed into the dialer that open hidden Android test and info menus, like the phone status menu and hardware test screens.
They are useful to check the IMEI, signal and battery, or to run quick display and sensor tests. Availability varies by manufacturer and Android version, not every code works on every phone.
Privacy: this tool runs entirely in your browser. No image, audio or device data is recorded or sent to any server.
Frequently asked questions
Are these codes safe?
Info and test codes are safe. Be careful only with reset codes, which erase data, those are flagged with a warning in this list.
I typed a code and nothing happened.
Many manufacturers block or change these codes. If the menu doesn't open, it simply isn't available on your skin.