What does the key symbol means and how can i get it on

If you mean the red light with a symbol of a key inside a car shape! This is the vehicle immobiliser!

Have you tried the orange button?

I mean the same way as the shift key function? Because, they are built the same with qwety keyboard. The hint is the orange printed symbols. Same as blue printed "Fn" button on PCs.

I haven't used it but it worth a try.

Key symbol? Where and when are you getting this symbol? What is it that you are doing when it appears?
Maybe it is asking you for a Product Code Key. For example The Microsoft Office Suite (Word, Excel, Powerpoint, etc) has a product key that is on the packaging. So does the operating system and the Certificate of Authentication (COA) Key is on a sticker somewhere on the computer. It is a series of 5 numbers and letters combination.

Dell has a good one year warranty, so go to www.dell.c/support and they will walk you through the problem.
Hope this helps.

THEY MEAN THEY ARE USED AFTER PRESSING FUNCTION KEY ON YOUR COMPUTER
LOOK FOR Fn -A BLUE COLORED KEY.

The door is locked.

the sysmols has there usual meanings for which they stands for.
also if u are trying to type them and not able to type them then u have to press the "shift" key on the keyboard before pressing the button which you wants to type.

dear,
what does it mean. do you want to know the hotkeys of just want to speed up your typing speed.
if you mean is to speed up you typing speed. then use softwares like typing tutor etc. i used typing tutor 6. it is an old version but is simple too. now i can type very fastly.
or if you want hotkeys then visit this links:
http://users.sa.chariot.net.au/~kday/keyboardtips.html
http://www.helpwithpcs.com/tipsandtricks/keyboard_shortcuts_microsoft_word.htm
http://wiki.blender.org/index.php/Manual/Hotkeys/Hotkey_Keyboard_Map,
the last one is impressive.
regards,
salman

You should be able to go to Sharp support and search your model number for a copy of the operator's manual. If it's an older model send me the model number and I'll look for one. Good luck and God bless.

That means the symbol assigned for shift-2 is currently assigned to the top left character, likely the " symbol. Press shift-Fn to toggle between symbols until the @ symbol works.