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 service details etc.
Is there a similar service menu for android devices and What can I do with that menu?
As the How has already been explained, you might want to have the What as well:
There are several lists on the internet (just google for "secret codes") with many of those codes. Not all of them work on all phones (some are device or manufacturer specific), but many are common to all Android devices (and some times even to all smartphones). I won't list all of them here, but a few more important to be known include...
┌──────────────────────────────────────────────────┬───────────────────────┐
| Code | Description |
├──────────────────────────────────────────────────┼───────────────────────┤
| *#0011# | GSM Infos |
| *#0228# | Battery Infos |
| **05*<PUK>*<new PIN>*<new PIN for confirmation># | Unlock PIN |
| *#*#0588#*#* | Test Proximity sensor |
| *#06# | Show IMEI |
| *#*#1234#*#* | Firmware Info |
| *135# | Show your phone number|
| *#*#197328640#*#* | Service Menu |
| *#*#7378423#*#* (*#*#SERVICE#*#*) | Service Menu |
| *#*#2432546#*#* (*#*#CHECKIN#*#*) | Check for OTA Updates |
| *2767*3855# | Factory Format |
| #31#<phoneNumber> | anonymous call |
| *#*#3264#*#* | RAM Test |
| *#*#4636#*#* (*#*#INFO#*#*) | System Infos |
| *#*#7594#*#* | Customize PowerButton |
| *#*#7780#*#* | Factory Reset |
└──────────────────────────────────────────────────┴───────────────────────┘
Use at your own risk -- some options might prove dangerous (e.g. the factory format) -- especially if you don't know what they are supposed to mean, think twice or better avoid the option.
Go to your phone dialer
and enter these codes (they work in my Samsung Galaxy Nexus, Jelly Bean 4.2.1):
'Testing' menu: *#*#4636#*#* (the same as *#*#INFO#*#*)
IMEI number: *#06#
Additionaly check out the page Secret codes for Android, full of codes (some of them didn't work in my phone) and screenshots
Note: Please be extremely careful with the options, because they're not intended to be messing with them.
Well, there is a menu available for handsets running android OS. To get the menu, go to your stock phone app and type the following.
**#*#7378423#*#*
It is simply *#*#SERVICE#*#*
There are many things you can do in this menu.
Some of these items may differ from handset to handset. These are the typical menu items available. This menu comes handy when checking the total call timer (in service tests), Rooting status check (in Service info -> Configuration), etc.
