1. zrxoa1's Avatar
    I tried searching quickly but did niot find an answer...

    I need to put a friend's VZW iphone 4 into debug mode so I can check the true signal strength he is getting (in db's), how do I put his phone into debug mode?

    Thank you!!!

    I use an HTC Incredible so the iphone is a bit different... lol... I do have an old 2G iphone I play with at home, on wifi...
    Last edited by Alli; 06-13-2011 at 11:38 PM. Reason: Clarifying title
    06-13-2011 10:26 PM
  2. zrxoa1's Avatar
    Thank you Alli for fixing the title. I apologize but I am at work and was in a hurry. You see, i am currently using the Incredible, but I am having signal reception problems where I work. A few friends with VZW iPhone seem to get much better reception. If I can determine that for sure, I may switch myself to the iPhone.
    06-14-2011 12:53 AM
  3. zrxoa1's Avatar
    Really?? No one knows how to do this? I have searched, but the top hits I get on google are ME asking the question.. LOL
    06-14-2011 10:17 PM
  4. zrxoa1's Avatar
    FINALLY.... finally found the info online after days of searching. Apparently, the iphone 4 cannot be put into Field Test mode or debug mode.

    At least not yet...
    06-16-2011 03:17 AM
  5. DataWag's Avatar
    There is a Debug Console option for the iPhone and iPad but it is for Debugging websites in Safari. It doesn't fulfill the purpose you are looking for but in case others are searching for this purpose and find your #1 google listing (as I did originally) I'll post it here:

    Home screen > Settings > scroll down to the third section and select Safari > then scroll to the bottom and select Advanced > then turn on the Debug Console.

    Now when you view websites, errors and hints will be listed. Great for mobile developers or any normal user with too much time on their hands.
    07-12-2012 11:03 PM
  6. jeremylobaugh's Avatar
    I noticed when I had previously jail broken my iPhone 4S that the CDMA debug mode worked.
    07-31-2012 05:34 PM
  7. Exxod's Avatar
    *3001#12345#*
    Dial this on the iPhone 4, and it will go into Field Test mode. Up can see the true signal strength in the corner where the bars normally are. -116 would be no bars, whereas -47( I believe it is) would be full signal.
    Last edited by Exxod; 07-31-2012 at 08:23 PM.
    07-31-2012 08:19 PM
  8. zrxoa1's Avatar
    Old thread brought back, but info is still great, thank you!

    I have since switched to the iPhone myself. Jailbroken of course, lol.


    Sent using Tapatalk
    08-16-2012 08:56 AM
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