Dialer codes are special codes that, when entered in the dialer, start a special action (e.g. showing hidden system information, start an debug app). They consist of digits enclosed with `#` and `*` characters. Follow the 'info' link below for more details.

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Do you know other Android keypad commands (dialer codes)?

There a lots of differents keypad commands in Android. Which one do you know ? Some of them are listed here : *#*#checkin#*#* Phones home to check for updates. *#*#info#*#* - Enters a detailed ...
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3answers
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How to view the android service menu (secret menu)?

Most of the mobile manufacturers include a hidden service menu in their mobile handsets. These menus allow users (or developers) to access some technical information and service personnel to access ...
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3answers
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What are Android's secret telephony codes?

What are Android's hidden Secret Codes? There are a bunch of secret codes to access hidden features or perform special actions. They're entered into the dialer and have the following format: ...
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1answer
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Is there an official dialer code resource?

There are a ton of XDA forums and a decent number of answers here that refer to specific dialer codes. For instance *#*#4636#*#* will cause unicorns to spring forth from your phone or tell you what OS ...
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HTC Desire S - Number Unknown Is Shown?

My question is similar to this one, however what would be appropriate solution for HTC Desire S device because it does not allow you to change your phone number on SIM card like Samsung Galaxy does? ...
5
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1answer
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How can I save keypad command numbers like `*#*#4636#*#*` to my contact list?

I learned from a previous question of mine that Android has got several system numbers, or "keypad commands," which produce all kinds of information or invoke a system mode. As example: one of them ...
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1answer
771 views

How can I see the RRC state and signal level of an HTC Explorer?

Is there any alternative to the Android secret code *#*#197328640#*#* for the HTC Explorer? I am trying to get the same Service Mode on my HTC Explorer to show the RRC State and signal level of the ...