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This is likely an embarrassing question, but I may not be the only one struggling.

I am trying to figure out a problem with my phone by using these secret dialer codes. I am entering these codes into my phone, but nothing is happening. When I call the entered number, I get the typical Verizon lady saying "The call cannot be completed as dialed..."

I specifically have used a code from this link (this addresses the problem I am having) and have tried multiple others from here*, but all give that same problem. Is there something that I am missing? Do I have to be a super user or something along those lines?

*Note: I know these may not be specific to my device, but some of these look to be universal regardless of manufacturer or model.

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3 Answers 3

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You shouldn't trust such a list of secret codes, simply because secret codes are not only device specific but mostly app specific.

Secret Codes are generally defined by the applications installed on the device.
If you want to have a valid list of secret codes available on your device, you should use an automated secret codes crawler.

I recently developped an Open Source app that crawls AndroidManifest.xml files on your device to found secret codes, and allows you to execute the secret codes available on your device.
You can get it on the Play Store or on the GitHub repository Android-Secret Codes.

But keep in mind that sometimes, secret codes are just executing themselves silently (without visual hint)

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  • Not all "secret codes" are app specific, see: supplementary service codes. They can be devided into generic (GSM) codes, provider/carrier-specific codes, manufacturer/device-specific codes, and "software-specific" codes (ROM/apps). Does your app cover them all (maybe except for the 3rd group, as that might be difficult)?
    – Izzy
    Commented Aug 2, 2014 at 15:34
  • Sure, I forgot this aspect. As far as I know, "Secret Codes" are only app specific, and triggered by the system if they are registered in AndroidManifest.xml files. When I talk about Android Secret Codes, I'm refering to this: TelephonyIntents.SECRET_CODE_ACTION, and codes that starts with *#*# and ends with #*#*. But I'm aware that lots of others secret codes can be triggerred at a different level like USSD codes. By the way, I don't known any way of crawling these codes...
    – Simon Marquis
    Commented Aug 2, 2014 at 18:48
  • Thanks for the update, Simon! I wasn't aware there's an API element named by that. From this it's clear what you refer to by the term, which somehow "voids" my claims. "Secret Codes" obviously is not a term with a clear definition :)
    – Izzy
    Commented Aug 2, 2014 at 20:16
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Just enter these codes in dial pad. The moment you type the last # key it will automatically open a window with information.(No need of hitting dial button) These codes have been confirmed working on Galaxy S4 models.

  1. *#06# IMEI number
  2. *#0*# Test screen
  3. *#0283# Audio loopback
  4. *#2663# Firmware and Update versions
  5. *#12580*369# Software and Hardware info
  6. *#0228# Battery Status
  7. *#2263# RF Band selection
  8. *#9090# Service Mode
  9. *#7284# UART MODEM PDA
  10. *#8736364# Update Settings
  11. *#7353# QUICK TEST MENU

Note: NONE OF THESE CODES WORK on Android 4.3!

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  • This is just a copy-paste from the 2nd link in the original post. It doesn't answer the question of how to properly enter these codes on a given handset.
    – Chahk
    Commented Mar 14, 2014 at 12:56
  • Edited.Actually this is not a copy paste from the second link. This is confirmed working code on S4
    – samnaction
    Commented Mar 14, 2014 at 13:05
  • Working on GT-I9505 for sure, not sure about verison variant.
    – RossC
    Commented Mar 14, 2014 at 23:01
  • They don't work on Verizon phones.
    – user58034
    Commented Apr 8, 2014 at 3:24
  • Yes, I can verify that, These DO NOT work on Verizon SCH-I545
    – user63952
    Commented Jun 13, 2014 at 14:33
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No the codes work with sch-i545 vrufng6. Only need to be roooted and change efs/carrier hidden menu disable to enable thats all

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  • Can you explain how to do this?
    – Matthew Read
    Commented Mar 3, 2015 at 21:33

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