Nokia Bluetooth trick To Keep Your Friend's Bluetooth ON For Forever

Today I will Show You a Small Mobile Phone Bluetooth Trick. By Which You can Able To make Frustrate Your Friends.By Keeping Their Bluetooth ON For Forever.

We Know That When Bluetooth Remains Enable Phone Consumes Battery At A rapid Rate.So What Will Happen If You Switch On Bluetooth Of Your Friend's Phone and They Can Unable To switch That Off.
This Is Really A Nice Bluetooth Trick And Doesn't Need Any Software To Do That... :)

Lets Take A look How We can Able To Do That.

• Just Switch On The Bluetooth Of Your Friends Phone.
• Press *#9990# .
• Done!! Anyone Can't able to  Switch Off Bluetooth Now.
  
  
  Now If you Want To Switch off Bluetooth.Then Just Switch Off Your Phone For  5 Minutes. And then Try To switch Off Bluetooth. :)
  
  
  Note:This Bluetooth Trick Is Tested By Me On Nokia Phones Like 3500,3100,5300,x2..Some Nokia Phones Doesn't Support This Trick...