Samsung GALAXY phone - Service / Test / Hidden Menu, Secret Codes

Set-up (Programming) procedure is too much to type in here, and is not practical and it will differ brand-to-brand remote controls. If you wish to get more; check the sites linked here. The site has set-up code list & set-up procedure to many popular brand remote controls. The site has general set-up codes to check with TVs and other devices are given, in the order of the 'device's brand name list' in alphabetical order. Set-up code list to many brand remote controls also is given. Pull up older posts. Search the sites by type in the brand name to your device in its search box at the top right part of the display window. It will help you to find the document easily.
http://homenol.blogspot.com/
http://remotesearch.blogspot.com/
http://electronicshelponline.blogspot.com/
http://electrohelponline.blogspot.com/
Programming Notes
• If your device does not respond to the remote after trying all codes listed or your brand is not listed in the code list, use the Auto Code Search method to program your remote.
• Sometimes the first code that "works" with your device may operate only a few functions of your device. There may be another code in the code list that performs more functions. Try other codes from the code list for more functionality.
This is a trial and error procedure; and quiet time consuming. You might have to check different codes said for your device.

DEVELOPER OPTIONS.

Open Settings>About Devise>

Near Bottom of menu, You Might See, Development Options.

If No, Then You Need to Click on BUILD NUMBER,
ONE click does nothing.

Click Buid Number 7 Times,

Then a New Hidden Menu Will Be available to open.
In about Device Menu Near Bottom Open DEVELOPER OPTIONS.

In this menu, scroll Near the Bottom, to screen options, or at the top of menu, Turn OFF Developmer Options, And your second Screen will be canceled off the screen.

Hope Helps

*#06# - IMEI number
*#0*# - Enter the service menu on newer phones like Galaxy S III
*#*#4636#*#* - Phone information, usage statistics and battery
*#*#34971539#*#* - Detailed camera information
*#*#273282*255*663282*#*#* - Immediate backup of all media files
*#*#197328640#*#* - Enable test mode for service
*#*#232339#*#* - Wireless LAN tests
*#*#0842#*#* - Backlight/vibration test
*#*#2664#*#* - Test the touchscreen
*#*#1111#*#* - FTA software version (1234 in the same code will give PDA and firmware version)
*#12580*369# - Software and hardware info
*#9090# - Diagnostic configuration
*#872564# - USB logging control
*#9900# - System dump mode
*#301279# - HSDPA/HSUPA Control Menu
*#7465625# - View phone lock status
*#*#7780#*#* - Reset the /data partition to factory state
*2767*3855# - Format device to factory state (will delete everything on phone)
##7764726 - Hidden service menu for Motorola Droid

You can find more of these spread across the internet, and they're usually very handy to have, even if just to show off your geekiness to your social circle.
Update x1: More codes!
*#*#7594#*#* - Enable direct powering down of device once this code is entered
*#*#273283*255*663282*#*#* - Make a quick backup of all the media files on your Android device
*#*#232338#*#* - Shows Wi-Fi MAC address
*#*#1472365#*#* - Perform a quick GPS test
*#*#1575#*#* - For a more advanced GPS test
*#*#0283#*#* - Perform a packet loopback test
*#*#0*#*#* - Run an LCD display test
*#*#0289#*#* - Run Audio test
*#*#2663#*#* - Show device's touch-screen version
*#*#0588#*#* - Perform a proximity sensor test
*#*#3264#*#* - Show RAM version
*#*#232331#*#* - Run Bluetooth test
*#*#232337#*# - Show device's Bluetooth address
*#*#7262626#*#* - Perform a field test
*#*#8255#*#* - Monitor Google Talk service
*#*#4986*2650468#*#* - Show Phone, Hardware, PDA, RF Call Date firmware info
*#*#1234#*#* - Show PDA and Phone firmware info
*#*#2222#*#* - Show FTA Hardware version
*#*#44336#*#* - Show Build time and change list number
*#*#8351#*#* - Enable voice dialing log mode, dial *#*#8350#*#* to disable it
##778 (+call) - Show EPST menu
These codes are specific to HTC devices only:
*#*#3424#*#* - Run HTC function test program
*#*#4636#*#* - Show HTC info menu
##8626337# - Run VOCODER
##33284# - Perform field test
*#*#8255#*#* - Launch Google Talk service monitor
##3424# - Run diagnostic mode
##3282# - Show EPST menu
##786# - Reverse Logistics Support

That is a Jet Heat error. Most likely a bad print head. Could be the electronics module.
Either the print head heater has failed, or the supply voltage to the print head heater.
Either one is very expensive to replace.

I think this is the area you are refering to..

If not shoot me LOL..

Let me know ok.

The Hidden Service menu provides access to a large group of information pages and functions usable for diagnosing and correcting system malfunctions and accessing special features. Display the Hidden Service menu as follows:

1. From the System Setup menu, go to Information --> Troubleshooting --> Service Tools menu.
   
2. With the cursor at the top of the Service Tools menu, press both the Up Arrow and Down Arrow buttons to display the Hidden Service menu.