If we look around, we will find that Android is the most used mobile operating system. Android provides users with far more features and customization options than every other mobile operating system.
If you have been using Android for a while, you might be well aware of USSD codes. USSD Codes, also called Secret codes, were used to explore the hidden features of a smartphone.
The Android USSD codes were meant only for devices running on the Android operating system. So, let’s check what the USSD codes are.
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What are the USSD Codes?
USSD or Unstructured Supplementary Service Data is often considered ‘Secret codes’ or ‘Quick Codes’. These codes are an extra-UI protocol that allows users to access the hidden features of smartphones.
The protocol was initially meant for GSM phones but was also found in modern devices. You can use these secret codes to access the features or settings kept hidden from the users. For instance, you can find secret codes to perform different tests, display information, etc.
List of all Working Best Hidden Android Secret Codes
So, in this article, we have compiled a list of the best secret codes for Android. So, let’s check out the list of best Hidden Android Secret Codes. Open the default dialer app and enter the codes to use these codes.
Important: Some of the codes in the article were universal and will work on every Android device, irrespective of the brand. However, few of them will only run on specific ROM and carriers.
USSD Codes to Check Phone Information
Below we have shared a few best USSD codes to help you check your phone’s information. Here are the codes.
Check the Battery & WLAN information
*#*#4636#*#*
You can use the *#*#4636#*#* to check the Battery, WLAN, and other details of your phone. This USSD code can also show you who accesses your apps.
Factory Reset Android Device
*#*#7780#*#*
While you can factory reset your Android smartphone via Settings, a more straightforward method is available.
You can factory reset your device directly by running the *#*#7780#*#* USSD code on your Android’s dialer.
Hard Reset Android Device
*2767*3855#
You can perform a hard reset if your device fails to function correctly. A hard reset is very different from a factory reset. Hard reset doesn’t hold your data, and it clears all the memory associated with the hardware.
Display information about the camera
*#*#34971539#*#*
If you are looking for an easier way to view the camera information of your smartphone, you need to try this USSD code.
Dialing the *#*#34971539#*#* on the dialer will display the camera firmware information of your device.
Change the Power Button behavior
*#*#7594#*#*
If the power button of your Android smartphone isn’t working or is broken, you can use this USSD code to shut down your phone.
This code will immediately shut down your Android device. To power on your device, you need to use the Power button.
Enable and Disable Call Forwarding
*#67#
Call Forwarding is a feature that allows you to redirect or forward incoming calls to an alternate number.
If you often travel a lot, you can set up call forwarding on your secondary number to avoid roaming charges and don’t want to be bothered during your vacation. You can use the *#67# USSD code to check whether call forwarding is active on your device.
Disable Your Caller ID
*31#
This Android secret code disables your caller ID. You can use this code if you don’t want others to know that you are calling them.
Dialing *31# will immediately disable the Caller ID, and if you want to re-enable it, redial the code.
Check the SAR Value
*#07#
SAR value, or the radiation level, is a measurement that tells the level of electromagnetic energy your body absorbs while using your Android device. So, you can use the *#07# code to display your Android device’s Specific Absorption Rate (SAR) value.
View Phone’s Calendar Storage
*#*#225#*#*
You can use the *#*#225#*#* code to view your phone’s calendar storage data. This page will show you the events saved on your calendar app.
This code allows you to see upcoming birthdays or important events without connecting to the internet.
Open the General Test Mode
*#0*#
This code brings up the general test mode on your Android smartphone. With this USSD code, you can test the vibration, screen dimming, camera, sensor, touch, sleep, speaker, LED., and other hardware elements of your Android device. However, the code works only on selected Android smartphone brands.
Display the MAC Address
*#*#232338#*#*
MAC Address or Media Access Control is a unique number assigned to your NIC (network interface controller).
This unique identifier is used to identify network devices on a local scale. You can use *#*#232338#*#* USSD code to check the MAC address of your Android.
Test the Bluetooth sensor of your device
*#*#232331#*#*
You must check the Bluetooth sensors if your phone can’t find or connect to Bluetooth devices. With *#*#232331#*#* USSD code, you can test the Bluetooth sensor of your Android device.
Check the Software Version & Update Information
*#*#44336#*#*
You can use this USSD code on your Android to check the software version and the system update information. It will show you more details than the About Device option on the Settings app.
View PDA Software Version
*#*#1234#*#*
Dialing the *#*#1234#*#* command on Android’s dialer will show the Personal Digital Assitant (PDA) software version. Apart from that, the code will also show your phone’s firmware information.
View the IMEI number of your Android
*#06#
IMEI, or the International Mobile Equipment Identity Number, is a unique number for identifying your phone on a mobile network.
The IMEI number comes printed on your phone’s box, but if you can’t find it, you can use the *#06# USSD code. The code will display the IMEI number of your Android smartphone.
Storage and System Details
*#3282*727336*#
You can use the *#3282*727336*# code to find your Android smartphone’s storage and system details. The code will tell your Android smartphone’s exact internet system and storage information.
USSD Codes to Check RAM/Software/Hardware information
Below, we have shared a few Android secret codes to help you find the RAM, software, and hardware information. These are general USSD codes and might not work on every Android device.
*#*#3264#*#* This Android secret code will display the RAM information*#*#1111#*#* Displays the software version.*#*#2222#*#* This Android code shows the hardware version.*#2263# Displays the RF band selection*#9090# Running this code will show the Diagnostic configuration.*#7284# This code will open the USB 12C mode control.*#872564# This shows the USB logging control.*#745# Running this code opens the RIL dump menu.*#746# Running this USSD code will show you the Debug dump menu.*#9900# Opens the System dump mode.*#03# NAND flash serial number*#3214789# This shows the GCF mode Status*#7353# Opens the Quick test menu*#0782# This code will perform a Real-time clock test.*#0589# This code will perform a Light sensor test.
USSD Codes for specific phones
7764726 It opens the hidden service menu in Motorola DROID phones1809#*990# This code opens the LG Optimus 2x hidden service menu3845#*920# It opens the LG Optimus 3D hidden service menu*#0*# It opens the service menu in Galaxy S3.*#67# Displays your Call forwarding*#011# This code will display the network connection and serving cell-related information on your Samsung smartphone*#0228# You can use this code on your Samsung device to check the battery status. It also shows a few other battery-related details.
Note:- If you have no idea about any particular Android secret codes listed above, it’s better to leave them. Playing with unknown secret codes can damage your phone. We have grabbed the secret codes from the internet. So, we are not liable for any damage if it happens.
Also read:20+ Best Hidden iPhone Secret Codes
So, these are some of the best Android hidden secret codes. These codes are tested and working fine, but some may not work on some Android phones. However, be alert while using them as we are not responsible for any data loss or damage. I hope this article helped you! Please share it with your friends also.
FAQs
What does * * 7780 * * do? ›
2. *#*#7780#*#* (Run a Factory Reset) If you don't want to run a hard reset, this is the next best thing. Similar to a factory reset, this code will simply delete all application data from your device, as well as any applications.
What is this code * 2767 * 3855? ›*2767*3855# – Format device to factory state (will delete everything on phone)
What is the use of this code * * 4636 * *? ›*#*#4636#*#* Displays information about the phone, battery, and various network statistics.
What is ## 002 Android code? ›Security of Android Smartphone codes : Code ## 002 # ~ Deactivates all forwarding. Code * # 21 # ~ To know whether message or call has been diverted or not.
What does * 3370 do on Android? ›By pressing *3370# or #3370#, you'll activate your phone's “reserve battery power”. Battery life will increase by 50%. The reserve will automatically charge up the next time you change your device.
What does * 002 * mean? ›##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.
What is this code for *# 9900? ›If you are a Samsung Android smartphone user then check below 2 Best Samsung Secret Codes where by using these Samsung Secret Code Function you can know your Samsung Android Phone diagnostic configuration(*#9090#) and Dump mode(*#9900#) settings.
What does the code * 3370 do? ›If you ever find yourself somewhere getting poor cellphone reception, type in this code to turn on “enhanced full rate” mode. EFR mode improves your cell reception, but your battery life might be compromised.
What is b140dl phone? ›SPEED 4G LTE / Wi-Fi® Connectivity. USAGE TIME Up to 1324 min. DISPLAY 6.0 inch HD+ 18:9 Incell Display 720 x 1440 Resolution. STORAGE 32GB Internal Memory | 3GB RAM | MicroSD up to 128GB.
Does * 3370 work? ›No, pressing the *3370# keys on your iPhone or Android device does not improve your cell phone signal. As mentioned, the code *3370# activates Enhanced Full Rate Codec (on specific devices). Since users would experience better voice quality after entering the code, many assumed it was due to better signal.
What is *# 0011? ›
...
Samsung (for Galaxy S4 and later)
| Code | Description |
|---|---|
| *#0011# | Service Menu |
| *#0283# | loopback test |
| *#06# | imei |
| *#03# | nandflashheaderread |
As per the rules, the SAR level of any device should not exceed 1.6 W per Kg. You can also check the SAR level by dialling a number. The number is *#07#. When you dial the number, the phone will automatically show the SAR level.
What is ## 004? ›Next up, we have the *#004# settings interrogation short code, which lets you see all forms of conditional call forwarding on your line.
What is Android secret key? ›A public/private key RSA pair is generated, which is stored in the Android device's keystore and protected usually by the device PIN. An AES-based symmetric key is also generated, which is used to encrypt and decrypt the secrets.
What happens when you dial *# 0228? ›Enter *#0228# in to the phone dialer and you'll see the change in voltage when you charge it. Of course, if you're worried about breaking something, it's probably best not to mess with this hidden menu. It is hidden for a reason, after all.
What does 3001 12345 do to your phone? ›Dial *3001#12345#* and press the Call button. This will launch the Field Test Mode app and where the bars/dots were in the top left corner of the screen, you'll now see a negative number. The negative number is the decibel signal strength reading and should be followed by the carrier name and then the network type.
What does *# 30 do on Android? ›#2 NUMBER IDENTIFICATION: The code *#30# will help you turn your number identification on or off.
What happens when you dial * 35 * 0000 * 16? ›To unblock your barring for incoming SMS texts dial #35*0000*16# To set SMS barring for outgoing SMS texts dial *33*0000*16#
What does this * 31 *# do on Android phone? ›To block your mobile phone number on a per-call basis, dial #31# before each phone number you call. To permanently block your number use your Call Settings menu.
What is * 74 on your phone? ›Speed Dialing
Establish a short list of up to eight numbers, or a longer list of up to 30 numbers. To program your Speed Calling 8 list, dial *74. Listen for the dialtone, then dial the one-digit number (2 through 9) you would like to use to dial a frequently called number.
What is MMI codes for Android *# 21? ›
Use the code *#21# to see if hackers track your phone with malicious intent. You can also use this code to verify if your calls, messages, or other data are being diverted. It also shows your diverted information's status and the number to which the information is transferred.
What does *# 21 do on Android? ›What does dialing *#21# actually do? When you dial *#21#, you are, in fact, activating a feature access code that quickly tells you the status of call forwarding for your phone. It's a quick way of seeing what, in the case of this particular 'setting interrogation code,' your call forwarding settings.
What is this MMI code? ›Man-Machine-Interface or MMI codes are android phone codes that contain characters like hashtag (#) or asterisk (*) in them. All the MMI codes have some kind of similar, but this does not mean that they are the same. These codes fall into different category base on the different action they must perform.
What is the code *# 0283? ›*#0283# This code can be used to control packet loopback settings.
What does *# 06 do? ›Android & iPhone code: *#06#
Entering this into your keypad shows your display IMEI number, which is your phone's identification number, and it's unique to each smartphone.
*#*#4636#*#* is a secret code for Android phones. The Android operating system has the possibility of entering a series of codes, to access a series of information. data like the IMEI or the health of our battery, are often difficult to find for non-advanced users.
What is B131DL? ›Blu® View 2 (B131DL)
The all new BLU View 2 smartphone pushes the limit to the edge with a gorgeous 5.5'' HD+ incell display, 64-Bit Quad-Core processor, 13MP Main Camera with Flash, and 8MP Camera for selfie lovers! In the next step, you will have the option to bundle your Phone with one of our no-contract plans.
TracFone Prepaid BLU View 2, B130DL, 32GB, Black, PrePaid Smartphone, With SIM Card **BRAND NEW IN BOX** - Walmart.com.
What is red phone? ›The Red Phone Network is the answer to “What happens during a communication outage?”. Red Phones connect with other Red Phones for full voice communication during the most severe and widespread phone, cellular, or Internet outages.
What does * 68 do on a cell phone? ›Dialing *68 will disable the Caller ID for the next outbound / external call only. Selecting a line and dialing this feature code will result in a prompt on the phone display as well as an audible message: "Caller ID is BLOCKED for the next outbound call only."
What is the master code to unlock any Android phone? ›
Phones don't have a single master pin to unlock them as each is different to the phone according to what the person makes it when they set it up. Often times they can have a SIM pin that is default to 0000 or 1234 but that is the SIM cards pin and can be changed by the user. Master pin is used to unlock mobile.
Can you trace a call from a cell phone? ›Private numbers, blocked, and restricted calls can usually be traced. However, unknown, unavailable or out of area calls are not traceable because they don't contain the data needed for a successful trace.
What is *# 0 *# Samsung code? ›*#0*# is a general test code used to test all the different functions of the Samsung phone. It is also known as Engineering mode as it is widely used by technicians and Engineers to find and troubleshoot the problems. You can also try #*#0*#*#* USSD code to test your smartphone display.
What does 00100 mean in binary? ›| 0 | 0000 | 0+0+0+0 |
|---|---|---|
| 4 | 00100 | 0+0+4+0+0 |
| 5 | 00101 | 0+0+4+0+1 |
| 6 | 00110 | 0+0+4+2+0 |
| 7 | 00111 | 0+0+4+2+1 |
“1,” of course, is the country code for the United States.
Is 1.117 SAR value safe? ›Federal Communications Commission (FCC) in the US has set an SAR level of 1.6 W/Kg for phones and the same measurement is followed in India. This means phone below 1.6W/kg are considered good.
What are the * codes for phone? ›Feature Access Codes (FAC) (also known as Star (*) Codes) are a convenient means for turning voice features on and off. With FAC codes, you can activate or deactivate features like Call Forwarding Always, Call Forwarding Busy, Call Forwarding No Answer, Do Not Disturb, Last Number Redial, and more.
What is the secret code for I Love You? ›2. 143: I Love You. This one is easy. I (1) Love (4) You (3).
What does *# 0 *# do? ›Accessing the Secret Diagnostic Menu
To get the ball rolling, simply open your Samsung's phone app. From there, enter *#0*# using the dial pad, and the phone will immediately go into its secret diagnostic mode. Note that the process is automatic, so there's no need to tap on the green call button to enter the command.
Selective Call Acceptance
Other callers will hear a message that you are not accepting calls at this time. To activate, dial *64. Listen for an announcement to tell you whether the feature is currently on or off. The recorded voice will then tell you how many numbers are on your call acceptance list.
What is the master password to unlock any phone? ›
Phones don't have a single master pin to unlock them as each is different to the phone according to what the person makes it when they set it up. Often times they can have a SIM pin that is default to 0000 or 1234 but that is the SIM cards pin and can be changed by the user.
What is the most famous secret code? ›- The Caesar shift. Named after Julius Caesar, who used it to encode his military messages, the Caesar shift is as simple as a cipher gets. ...
- Alberti's disk. ...
- The Vigenère square. ...
- The Shugborough inscription. ...
- The Voynich manuscript. ...
- Hieroglyphs. ...
- The Enigma machine. ...
- Kryptos.
1423 – “I want to die” (one letter in “I,” four in “want,” 2=to, three letters in “die”)
What is 459 meaning? ›Text message code for I love you, 459 corresponds to each of the first letters in "I love you," I=4, L=5, and Y=9 on a cell phone dial pad. Tip.
What happens if you dial *# 31? ›Hide Caller ID: *31#
The caller might have hidden the ID intentionally or sometimes it can be accidental. If you want to hide the caller ID dial *31# and press call button.
Incoming calls are forwarded to the destination number when your phone is turned off or not receiving the network's signals. Activate Call Forward Not Reachable Dial *62*, followed by the 10-digit number you want your calls forwarded to, then #. A message indicates that Call Forward Not Reachable is activated.
What does * 57 do on a cell phone? ›Malicious caller identification, introduced in 1992 as Call Trace, is activated by Vertical service code Star codes *57, and is an upcharge fee subscription service offered by telephone company providers which, when dialed immediately after a malicious call, records meta-data for police follow-up.
What is * 86 on cell phone? ›Access voicemail from your phone's dial pad
There are three ways to access your voicemail using your phone's dial pad. You can: Press and hold 1. Dial *86.
*82 - Unblocks Caller ID on one outbound call
This star code will unblock your caller ID for a single outgoing call if you have previously used *61 to block caller ID for all outbound calls.
SIM Network Unlock Pin (NUP) is a code used to unlock an Android phone or iPhone from its original carrier so that it may be used on other carriers. This code is typically 8 or 16 digits long and is used to unlock a smartphone.
What is one password master password? ›
The password you use to unlock your 1Password app is what we call the Master Password.
What is Android device unlock? ›Device Unlock is an Android app that allows you to request and apply a mobile device unlock directly from the device. Note: Starting August 14, the Device Unlock app will have an update available in the Play Store. This update provides a new security certificate which is required for the app to work.