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Brien

macrumors 68040
Original poster
Aug 11, 2008
3,671
1,285
Does the field test mode 'trick' no longer work? Launching the field test app does not seem to switch the dots to a number.
 

campyguy

macrumors 68040
Mar 21, 2014
3,413
957
Just checked on my VZW 6S+ and ATTWS 6S and both work as expected, no issues here.
 

YankInDaSouth

macrumors newbie
Nov 14, 2016
4
0
Does the field test mode 'trick' no longer work? Launching the field test app does not seem to switch the dots to a number.

Are you on an iPhone 7 or 7 plus? I have the 7 plus and it does not work for me either. Seems the folks that do say it works aren't on a 7 or 7+
 

AZhappyjack

macrumors G3
Jul 3, 2011
9,742
22,939
Happy Jack, AZ
Are you on an iPhone 7 or 7 plus? I have the 7 plus and it does not work for me either. Seems the folks that do say it works aren't on a 7 or 7+

Works for me.. AT&T, iPhone 7 Plus

IMG_1071.PNG
 

OriginalAppleGuy

Suspended
Sep 25, 2016
971
1,137
Virginia
I have a 7 plus and have used the trick for many generations. It follows to each new phone so I haven't had to run it each time. In fact, I can't remember the last time I went in to the field test.
 

AZhappyjack

macrumors G3
Jul 3, 2011
9,742
22,939
Happy Jack, AZ
The process has changed slightly

Dial *3001#12345#*
Press CALL
Hold the power button for about 5-7 seconds until you see the “slide to power off” screen.
Do NOT power off the phone!
Hold the home button for about 5-7 seconds.
It will return you to the home screen and you’ll see the dBm reading at the top of your screen.
 

YankInDaSouth

macrumors newbie
Nov 14, 2016
4
0
The process has changed slightly

Dial *3001#12345#*
Press CALL
Hold the power button for about 5-7 seconds until you see the “slide to power off” screen.
Do NOT power off the phone!
Hold the home button for about 5-7 seconds.
It will return you to the home screen and you’ll see the dBm reading at the top of your screen.

I've tried this a few times and still nothing ... So weird!!
 

George Knighton

macrumors 65816
Oct 13, 2010
1,391
346
I am on an Intel modem 7 Plus and after the upgrade to 10.3.3, I am still showing dBa for signal strength.

However, I was set that way before the upgrade to 10.3.3.
 

EJ8

Suspended
Oct 13, 2010
645
324
The process has changed slightly

Dial *3001#12345#*
Press CALL
Hold the power button for about 5-7 seconds until you see the “slide to power off” screen.
Do NOT power off the phone!
Hold the home button for about 5-7 seconds.
It will return you to the home screen and you’ll see the dBm reading at the top of your screen.
Doesn't work for me. On 10.3.1
 

OriginalAppleGuy

Suspended
Sep 25, 2016
971
1,137
Virginia
When you enter the *number# sequence and hit the call button, does it take you to the field test? It still works for me. If you are not getting there, ensure you are entering the #* at the end. The * is key and frequently omitted.

Edit to say it's interesting how many items in the field test don't provide values but have "come back later" listed. Wonder if they are abandoning this.

Additional Edit - I have AT&T and thus the Intel chip. But I get the dB readings. See what the article in the attached has to say about the iPhone 7:

https://www.repeaterstore.com/pages/field-test-mode
 
Last edited:

Brien

macrumors 68040
Original poster
Aug 11, 2008
3,671
1,285
It launches the app, but the signal strength stays as dots. It doesn't work.

All I get is "Main Menu" with a bunch of line items but they all say 'come back later'.
 
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ravenseb

macrumors member
Jan 19, 2016
56
31
Baltimore
It launches the app, but the signal strength stays as dots. It doesn't work.

All I get is "Main Menu" with a bunch of line items but they all say 'come back later'.

I get the same as u. I'm on T-mobile 7 plus. The code doesn't seem to work on my device as well
 

AZhappyjack

macrumors G3
Jul 3, 2011
9,742
22,939
Happy Jack, AZ
It launches the app, but the signal strength stays as dots. It doesn't work.

All I get is "Main Menu" with a bunch of line items but they all say 'come back later'.

I get the same as u. I'm on T-mobile 7 plus. The code doesn't seem to work on my device as well

Did you read the article linked by @OriginalAppleGuy, above? Apparently the setup routine doesn't work on the Intel modem chip (AT&T and T-Mo devices) ... I have it on my AT&T iPhone 7+, but I set it up years ago, and it's just come forward on every new device when I restore from the backup.
 

KGB7

Suspended
Jun 15, 2017
925
753
Rockville, MD
I have the Apple carrier free 6s+, using T-Mobile sim. I can get to the menu but the dB meter won't stick, it disappears after 2 seconds.
Running iOS 10.3.3
 

George Knighton

macrumors 65816
Oct 13, 2010
1,391
346
I have the Apple carrier free 6s+, using T-Mobile sim. I can get to the menu but the dB meter won't stick, it disappears after 2 seconds.
Running iOS 10.3.3

I bought a new iPhone SE and installed an old backup from my 7 Plus, and the dB stayed.

The 7 Plus itself, now on iOS 11 Beta 10, does not have the dB showing.
 

OriginalAppleGuy

Suspended
Sep 25, 2016
971
1,137
Virginia
Well....it was great while it lasted. Now that I'm on iOS 11, no joy. Field test provides limited data and no go on the decibel display instead of the bars.
 

formerpc

macrumors 6502
Apr 15, 2009
378
218
10.3.2 on a T-Mobile 7 Plus and I have the dB readout for my signal attenuation.
 

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formerpc

macrumors 6502
Apr 15, 2009
378
218
Have you read the thread? The issue is that Apple removed this feature with iOS 11. Since you are running 10.3.2, you aren't affected.
No it isn't. It's a thread about iOS 10 in the iOS 10 section of the forums. The OP never said iOS 11 at any point.
 
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