"Low Frequency" tests out your phone's earpiece, and tapping on the button to commence testing will bring you to the "Low Frequency Test" page. Tap on the screen one last time to end the test and go back to the main diagnostics page. Running the test is straightforward - simply tap on the "LED" button, then tap on the screen to change the LED's color from red, to green, and finally to blue. The LED test checks for the functionality of your device's LED notification light. So if you enter the code and nothing happens, the feature is disabled on your device. Note that the process is automatic, so there's no need to tap on the green call button to enter the command. From there, enter *#0*# using the dial pad, and the phone will immediately go into its secret diagnostic mode. To get the ball rolling, simply open your Samsung's phone app. Certain carriers, most notably Verizon and Sprint, have been known to block the code-based diagnostic mode on their Samsung smartphones and tablets, though newer phones from Sprint like the Galaxy S6 seem to have this functionality restored. Best of all, this feature is extremely easy to access and is a handy way of testing out a new or used phone to ensure it's in perfect running order before you commit to buying it.ĭon't Miss: Gamify Diagnostics on Your Android Phone with This Cool Little App Accessing the Secret Diagnostic Menuīefore we begin, it's important to note that this feature may not be available on your device. Unbeknownst to a lot of Samsung fans, most Galaxy phones have a secret diagnostic mode built in which can be accessed simply by inputting a little-known code. And if you have a Samsung handset, chances are, you have a handy feature built in that enables you to check if these sensors are functioning 100 percent. Is Dr.Fone safe for Galaxy S10/S20/S21 series phones? Yes, Dr.Fone for Android is fully compatible with unlocking all Galaxy S series models including the latest S23 devices on Android 13 without data deletion.Besides obvious features like a touchscreen and biometric sensors, the modern smartphone comes with an array of state-of-the-art hardware in the form of various sensors that help your device sense the environment around it.Only using the full factory data reset will permanently erase files. Will using a PIN unlock code delete my Samsung data? No, entering your Samsung device’s PIN unlock code will regain access without affecting anything stored in internal memory.It also retains personal data after unlocking. What's the most reliable Samsung unlock software? Dr.Fone - Android Unlock is the leading Samsung unlock utility for PC with highest effectiveness and widest Android version support.How can I backup my Samsung before unlocking? You can easily back up your Samsung data before attempting to unlock either to Samsung Cloud or to a computer using Smart Switch desktop software.All other unlock methods retain your downloaded apps and associated data. Will I lose app data if my Samsung password gets unlocked? Only if you reset your device from recovery mode is there a risk of losing app information and locally-stored data.Do I have to root my device to unlock Samsung password? No rooting necessary! All of these Samsung unlock methods featured work 100% safely without root and without voiding your device warranty in the process.All of the featured methods will work to remove password locks whether USB debugging mode is enabled or disabled. What if my Samsung doesn't have USB debugging enabled? You can still unlock your Samsung phone without USB debugging being turned on beforehand.For older devices, you’ll need an alternative solution. Will Find My Mobile work to unlock my old Samsung? No, Samsung Find My Mobile only works reliably on relatively newer models from the last 2-3 years with Android 9 or higher.Can I unlock my Samsung if I forgot my Google account password? No, you'll need to either recover access to the Google account registered on your device or use an alternative unlock method that doesn't rely on account credentials.So only use this method as a last resort if you have no backup. Will I lose all my data if I unlock my Samsung with a factory reset? Yes, performing a factory reset from recovery mode deletes all data on your Samsung device.
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