How do you use secret codes on Android?

Unstructured Supplementary Service Data (USSD) is a user interface protocol that you can use to access hidden features in your smartphone. To run any Android security code, you must input it directly in the dialer. If entered correctly, the code will return a response automatically, or you might have to press Dial.
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How do you use mobile secret codes?

Unlock Hidden SmartPhone Features with these Secret Codes
  1. Field Mode: *3001#12345#* ...
  2. General Test Mode: *#0*# ...
  3. Display your IMEI: *#06# ...
  4. Check Your Call Forwarding: *#67# ...
  5. Get Even More Info on Call Forwarding: *#61# ...
  6. Check Your Available Minutes: *646# ...
  7. Check Your Bill Balance: *225# ...
  8. Hide Your Phone From Caller ID: #31#
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What does *# 21 do to your Android phone?

According to tech magazine How-To Geek, dialing this code shows whether or not call forwarding is enabled on the device — not whether it's been hacked. How-to Geek described the *#21# feature as an “interrogation code” that allow users to view their call forwarding setting from the phone app.
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What is the use of * * 4636 * *?

Android code: *#*#4636#*#*

This code will open up a menu that shows information about your phone's data usages.
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What is the meaning of *# 0 *#?

*#0*# is to test some mobile functions to find out any hardware problem like screen colors, dim Light, tourch, vibration and receiver and some other functions it is for maintenance purposes if you wanna try this test make sure to know how to exist from a function to another some mobiles use volume up not for all ...
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23 Hidden Android Codes And Features



What does *# 06 do on your phone?

One of the simplest methods of finding your phone's IMEI number is using the USSD code - *#06#. This USSD code works on almost all smartphones and feature phones. What is the code *#06# used for? The USSD code when dialled from the phone displays the IMEI number of the handset.
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What happens if I dial ## 002?

##002# - If your voice call or data call, or SMS call has been forwarded, dialling this USSD code will erase them. *#21# - By dialling this USSD code, you would get to know if your calls have been diverted somewhere else or not.
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Can you tell if your phone is being monitored?

Always, check for an unexpected peak in data usage. Device malfunctioning - If your device has started to malfunction all of a sudden, then chances are that your phone is being monitored. Flashing of a blue or red screen, automated settings, unresponsive device, etc. could be some signs that you can keep a check on.
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What number do you dial to see if your phone is tapped?

*#21# When you dial *#21#, it will display the various sorts of diversion status which is happening with the number. This will display the information and you will come to know if your calls or messages are tapped.
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What is Android hidden menu app?

It's called the System UI Tuner and it can be used for customizing an Android gadget's status bar, clock and app notification settings. Introduced in Android Marshmallow, this experimental menu is hidden but it's not difficult to find. Once you get to it, you'll wish you knew about it sooner.
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What are spy apps disguised as?

Researchers have discovered Android spyware called Exaspy being used to intercept phone-based communications on executives' devices, including phone calls, text messages, video chats and photos. Most mobile security scanners have not been able to detect the spyware.
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What is the code to check Android phones?

Here is the screenshot from the hardware test of Android smartphones. The code used for testing hardware is *#*#4636#*#*. The screenshots below show information about the battery, usage of the phone's application and information about the phone.
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What are the hidden features of Android?

Hidden features of Android phone
  • Using Split Screen for Multi-tasking. ...
  • Lock people out of specific apps. ...
  • Get into your phone faster with Smart Lock. ...
  • Recover accidentally cleared notifications. ...
  • Transferring file through Wi-Fi direct.
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How do you unlock hidden apps?

Find Hidden Apps on Android using App Drawer.
  1. Visit your app drawer section.
  2. Tap on the three dots that are present at the upper-right of the device screen.
  3. Click on the home screen settings. It will navigate you to the Hide apps menu; tap on it.
  4. Here, you will see the hidden apps that are not showing in the app list.
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Can apps be hidden on Android?

Open the app drawer, tap the icon in the top-right corner (three vertical dots), and select the Settings option. The next step is to find and tap the Hide apps option, after which a list of apps will pop up on the screen. Select the apps you want to hide and tap Done to finish the job.
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Can someone listen to my phone calls?

It's also a common misconception that a phone can be hacked or that someone can listen to your phone calls just by knowing your phone number. This is not possible and is completely false.
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How do you know if someone is using a spy app on your phone?

Here's how to check data usage on an Android phone:
  • Go to Settings > Connections > Data usage.
  • Tap either Mobile data usage or Wi-Fi data usage.
  • Scroll through the apps list to see if any applications are using a suspicious amount of data.
  • Tap the current date range and select a previous period to compare.
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What happens if you dial *# 61?

Each item is either enabled or disabled. Dial *#61# and tap Call to show the number for voice call forwarding when a call is unanswered. Also show the options for data, fax, sms, sync, async, packet access and pad access.
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How do I know if my SIM is being tracked?

*#21# This simple code let you find out whether your calls, messages, and other data are being diverted. The status of the different types of diversions that are taking place along with the number the information is being transferred to will be displayed on your phone's screen.
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How can I tell if my Android phone is being tracked?

Check your precious data
  • Open your phone's Settings app.
  • Select Network & internet.
  • Under SIMs, select your SIM of choice.
  • Go into App data usage.
  • You can see more information here, and even check how much data each app uses.
  • Check the list of apps and see which are using the internet more. Look for any discrepancies.
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What is * 82 on the phone?

You can also use *82 to unblock your number in case your call gets rejected temporarily. Some providers and users will automatically block private numbers, so using this code will help you bypass this filter. Blocking your number can go a long way in stopping annoying robocalls.
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What happens if I dial *# 07?

Although this seemingly works only on Android phones. -- On your phone open the dialer or phone app. -- Now dial *#07# in your phone. This will show the you the SAR measurement of your device as specified by the manufacturer.
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What happens when I dial *# 31?

If you want to hide the caller ID dial *31# and press call button. This code allows you to check which number your phone is currently forwarding calls to when you're busy or reject a call.
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What is hidden Code?

USSD codes, also colloquially known as a "secret codes," are simply codes that are used to unlock hidden actions in your smartphone. Unstructured Supplementary Service Data (USSD) is a user interface protocol that you can use to access hidden features in your smartphone.
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