[mac4theblind] Field Test Mode for IPhone 4S with IOS 7.002
- From: Brian Lingard <b.lingard@xxxxxxxxxxxx>
- To: <mac4theblind@xxxxxxxxxxxxx>
- Date: Mon, 21 Oct 2013 15:25:10 -0400
Ottawa Canada
Dear David and List:
You said entering the numbers:
*3001#12345# then pressing the Call button on an IPhone brings up the Field
Test Mode which displays signal strength in dB instead of bars.
Well I did this and my IPhone 4S with IOS 7.02 displayed:
Error processing request: Unknown error.
Does this key sequence work on all models of IPhone or only some?
Thanks
Brian
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