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Open the stock Phone dialer app (Samsung’s default green phone icon). Third-party dialers like Google Dialer often block secret codes.

Most codes launch automatically as soon as you type the final character (usually #). If nothing happens, press the green Call button once. how+to+use+secret+codes+on+samsung+galaxy+a7+2+work

On the running Android 8.0 (Oreo) up to Android 10 (with One UI 2.0), several of these codes remain functional—though Samsung has locked down many since the Android 9 update. How to Properly Enter Secret Codes on the Galaxy A7 Before diving into the list, follow these critical steps to ensure codes work: Open the stock Phone dialer app (Samsung’s default

If the screen flashes and nothing appears, the code is either blocked or unsupported on your specific firmware version. If nothing happens, press the green Call button once

Now go ahead—open your dialer, type *#0*# , and watch the hidden test menu of your Galaxy A7 come to life. Just be careful what you touch in there. Share it in the comments (for the exact model SM-A750G, SM-A750F, or SM-A750N). And if a code triggered a soft brick, reboot by holding Power + Volume Down for 10 seconds.

In this guide, we will walk you through , which codes are confirmed to work, and what to do when a code fails. What Are Samsung Secret Codes? Secret codes are numeric sequences entered into the phone’s native dialer (the same app you use to call people). They start with asterisks (*) and hashes (#). When entered correctly, they trigger hidden activities or "tests" within the firmware.