SUNFORD ELECTRONICS SF003, Installation Manual

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Measuring Booster
Performance
How To Get Signal Strength As A Number
iPhone®
Android ™
iOS 11 and later no longer displays the decibel (dBm)
reading in 'Field Test Mode'. Tip: Using the dot signal
strength indicator on your cell phone can assist you in
finding the strongest signal direction as well as placing
calls in different locations.
Settings > About Phone > Status or Network > Signal
Strength or Network Type and Strength (exact
options/wording depends on phone model).
Android: download third part APP-LTE Discovery
iPhone is a registered trademark of Apple Inc. Android is a trademark of Google Inc.
Dial *3001#12345#* then press Call.
1 Hold down power button until you see 'Slide to
Power Off'.
2 Then release the power button.
3 Hold the Home button until your main screen appears.
If you want to check 3G/1x but your iPhone is picking up 4G/
LTE signal, go to Settings>Cellular>Cellular Data
Options>En_x0002_able .LTE>Select Off.
After you system is set up, you can go back to the dots signal
by once again dialing *3001#12345#* then pressing call.
When the menu comes back up, tap “phone” in the top left
corner of your phone.
iPhone®
iOS 11 - current
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