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					Originally Posted by DuckieTigger  Credit to Alan (aka alansplace) for making me look into this on an unrelated topic. Thank you, you made me hardware-hack my PW today. 
Do not worry, all that is needed is a small magnet and any way to strap it to the PW so that it can be easily removed / reattached. That is it on hardware needed.
Now how to turn the light OFF? Follow these 2 steps: 
1) disable screensaver in search bar by entering and hitting return after this:  2) attach your magnet so PW would normally go to sleep with wake / sleep function
 
Ta Da, the light is off. 
Few things you need to know: 
 - you can't enter screensaver sleep mode by closing the cover or pushing the button shortly - nothing will happen other than the light turns off  when using cover (that is where the magnet above comes in)
 
- you can still put PW to sleep, but you must remove the magnet, push power button for few seconds (about 4 maybe) to enter white screen sleep mode. Again, light must be turned on, or PW won't enter white screen sleep mode 
- the screensaver will not come on after 10 minutes (thought I mention that as ~ds  disables that)
 
- the light can be turned on and off by simply removing / attaching magnet
 
- to return normal operation a restart is necessary (menu->settings, then menu->restart) - screensaver is back , attaching the magnet sleeps device again
 
- last not least: does not require Jailbreak or USB Network 
Happy Hacking
   
p.s.: Thank you Amazon for this undocumented feature. | 
	
 How about those of us who don't have a case with a magnet? I do have screensaver disabled and do not have a magnet I'm aware of (case has an elastic to keep it closed). How big a magnet and where does it go if you 'strap it'?
