Red warning light flashing and my 02 gsxr won't start when it is flashing. Showing Fi

This is your car immobilizer light

Don't drive it could case serous motor damage valve hitting piston

I think first you need to setup wi-fi and enter the SSID code. setting wi-fi in iphone and ipad are all most same process..
Here is a blog to setup iphone and ipad with wi-fi

http://blog.vtechsquad.com/2013/02/28/how-to-connect-your-iphone-to-wi-fi/

have battery tested if good fully charge,then check all relays and fuses.

I have rhe issue can someone help me please

FI stands for Fuel Injection. The fuel system sensors have detected a problem. It could be anything > a dirty air filter restricting airflow, a plugged injector, an error in fuel mapping, any number of things. Serious problems can trigger the computer to prevent the engine from starting until the problem is fixed. You will need to take the bike to a dealer to have them plug in a code reader. The code reader will tell you exactly what problem has been detected. There is also a chance a sensor has gone bad and is giving a false signal. Keep that in mind. Now determine if you want to do the fix or have the dealer do it. Please rate my answer.

The lcd display should show either an oil symbol, a temp symbol, or fi to let you know which system the warning light is for. The oil symbol should be present before starting the motor and go away once the engine is running, if not you have an oil pressure problem. If it is FI, then you will need to jumper the test connector located under the seat to retrieve the codes on the display and a service manual to look up the code.

its probably your fi light which means fuel injection problem theres a way you can jump the wires which give you a code on the dash like c41 and than that tells you whats wrong heres a link to show you how to do it this is for gsxr 1000 but its the same for your bike.

http://www.gsxr.com/showthread.php?t=63150

That FI message is a computer warning telling you something is wrong with your fuel injection system. Have you installed a power commander or fuel nanny recently?