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      07-05-2011, 01:40 PM   #11
sfax
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Drives: BMW X3 2011 F25
Join Date: Nov 2010
Location: Berkshire, UK

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OK, found something that will give you more precise measurement. Type

*3001#12345#*

and then press Call

This puts the iPhone into Field Test mode and if you then look in the top corner highlighted below, you get a more accurate dBm reading of your current signal strength and it's automatically updated every 4 seconds. One would think that this would show an improvement when in the cradle but not tried it out yet






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