1. TwitchyPuppy's Avatar
    Hi! =)

    For those of you who would be interested in knowing the exact strength of your carrier's signal in decibels, without jailbreaking your phone, here is how:

    - Dial *3001#12345#*
    - Press Call
    - Hold down the Power button
    - When prompted to shut it down, press and hold the Home button until this 'window' closes and voila!


    If you want to revert:

    - Tap the numbers once to switch back to the dots and vice versa =)

    I tested it on an iPhone 4s, 5s (mine) a 6 (at my carrier, on iOS 8 like the two others) and 6s (mine on iOS 9) and it works =)

    Sent from my iPhone 5S using Tapatalk
    Last edited by EvilKittyCupcake; 11-02-2015 at 10:52 PM.
    viewfly likes this.
    08-29-2015 12:59 PM
  2. kch50428's Avatar
    We've discussed this a time or two in the past... A good reminder.
    TwitchyPuppy likes this.
    08-29-2015 03:08 PM
  3. TwitchyPuppy's Avatar
    Oh, I did know not that, my apologies!


    Sent from my iPhone 5S using Tapatalk
    Last edited by EvilKittyCupcake; 08-29-2015 at 03:42 PM.
    08-29-2015 03:15 PM
  4. kch50428's Avatar
    Oh, I did not that, my apologies!
    No worries... It's been a while since the last discussion... A fresh take is good once in a while.
    TwitchyPuppy likes this.
    08-29-2015 03:30 PM
  5. TwitchyPuppy's Avatar
    No worries... It's been a while since the last discussion... A fresh take is good once in a while.
    Great!!


    Sent from my iPhone 5S using Tapatalk
    08-29-2015 03:44 PM
  6. Spencerdl's Avatar
    I might be a little strange, but I actually like the circles/dots.....SMILE
    08-29-2015 04:00 PM
  7. Ledsteplin's Avatar
    I might be a little strange, but I actually like the circles/dots.....SMILE
    Yes, you are!
    08-29-2015 04:18 PM
  8. Spencerdl's Avatar
    Yes, you are!
    LOL
    08-29-2015 04:18 PM
  9. Ledsteplin's Avatar
    -110? And I thought mine was bad.
    Knowing your exact signal strength-imageuploadedbytapatalk1440879588.961043.jpg
    08-29-2015 04:19 PM
  10. TwitchyPuppy's Avatar
    I was in a shopping mall =P


    Sent from my iPhone 5S using Tapatalk
    08-29-2015 04:23 PM
  11. viewfly's Avatar
    Thanks! For the longest time, this didn't work with earlier ios's!

    For a temporary look, just dial without holding down the power button. You will get this.

    To get rid of it, just hit the home button. Oh, and before you do that, tapping the dB numbers will let you go back and forth with the dots.




    Sent from my iPad using Tapatalk
    TwitchyPuppy likes this.
    08-30-2015 01:00 PM
  12. Septembersrain's Avatar
    I think it's awesome that with a tap, it'll show the dots again.


    Sent from my iPhone 6 using Tapatalk!
    08-30-2015 05:12 PM
  13. viewfly's Avatar
    I think it's awesome that with a tap, it'll show the dots again.


    Sent from my iPhone 6 using Tapatalk!
    Yep, and the tap works with the more permanent change as the OP described.


    Sent from my iPad using Tapatalk
    TwitchyPuppy likes this.
    08-30-2015 07:23 PM
  14. metllicamilitia's Avatar
    Great, I forgot how to do this ha ha. I've just never known how to judge a good signal strength. What's the max signal strength number and what's the minimum? I would assume -80 is max because I have 2-3 dots depending on where I am in my hotel room and I'm sitting at -99 right now.


    Sent from my iPhone using Tapatalk
    TwitchyPuppy likes this.
    08-30-2015 08:00 PM
  15. kch50428's Avatar
    DB SIGNAL - A BASIC GUIDE

    -50 to -60 (very strong, near a cell tower)
    -60 to -70 (extremely good, rare)
    -80 to -85 (normal downtown)
    -90 to -95 (getting on the weak side)
    -95 to -98 (weak, dropping calls)
    -98 to -100 (bad, hard to stay connected)
    -100+ (basically no usable signal)
    metllicamilitia and BH321 like this.
    08-30-2015 08:34 PM
  16. metllicamilitia's Avatar
    Seems weird that I can have 3 bars and be getting on the weak side ha ha.


    Sent from my iPhone using Tapatalk
    08-30-2015 09:24 PM
  17. TwitchyPuppy's Avatar
    Seems weird that I can have 3 bars and be getting on the weak side ha ha.


    Sent from my iPhone using Tapatalk
    Well, when I was at -110, I checked and I had two dots.


    Sent from my iPhone 5S using Tapatalk
    Last edited by EvilKittyCupcake; 08-30-2015 at 10:42 PM.
    08-30-2015 10:09 PM
  18. viewfly's Avatar
    The dots are very skewed to the low side. Minus 76 is 5 dots. So less than 5 means your in the lower side. The visual is that 5, don't worry you have great voice landline quality. Showing more dots is pointless. 3 you might sound broken up at times ie what we call a 'cell phone' quality .

    I've seen -34 in the city and a low of -115.


    Sent from my iPhone using Tapatalk
    08-30-2015 10:17 PM
  19. Ledsteplin's Avatar
    DB SIGNAL - A BASIC GUIDE

    -50 to -60 (very strong, near a cell tower)
    -60 to -70 (extremely good, rare)
    -80 to -85 (normal downtown)
    -90 to -95 (getting on the weak side)
    -95 to -98 (weak, dropping calls)
    -98 to -100 (bad, hard to stay connected)
    -100+ (basically no usable signal)
    Not like that. I never drop calls at -102. I read calls get dropped at closer to -110 or less. I'm at 3 dots inside my house at -102.

    OS X says:
    "A signal number of -105 is considerably worse than a signal of -70. Youll generally find that anything approaching -105 or lower is fairly bad reception, while anything above -80 is usually good, and if you tap the number signal its usually shown as full bars. The full range of the signal numbers extends from -40 to -120, with -130 being a nearly impossible number to see because it means no reception, and -40 would be about the strength youd get being right alongside a cell tower. Technically, the number goes all the way to -140, but you will almost never see that because it basically means there is no signal to speak of, and most users will see -120 or -130 before it switches over to the No Service indicator instead.

    Once you get the hang of reading the numbers, youll find its much more accurate, and it becomes easier to predict when you may drop a call or start to get a bad signal or connection, which creates the weird artifacts and sounds on phone calls, often before it starts to cut out or even drop completely. That typically starts happening around -110 or so, before dropping the connection or call completely if it hits -120 to -130."
    Last edited by Ledsteplin; 08-31-2015 at 11:44 PM.
    08-30-2015 10:39 PM
  20. Septembersrain's Avatar



    Sent from my iPhone 6 using Tapatalk!
    08-31-2015 07:46 PM
  21. viewfly's Avatar
    -114 is very, very low!


    Sent from my iPhone using Tapatalk
    09-01-2015 10:35 AM
  22. Septembersrain's Avatar
    -114 is very, very low!


    Sent from my iPhone using Tapatalk
    I'm in the hospital. I'd be lucky to keep 4G, so having LTE is a miracle in this location. I have T-Mobile.


    Sent from my iPhone 6 using Tapatalk!
    09-02-2015 10:15 PM
  23. Ledsteplin's Avatar
    I'm in the hospital. I'd be lucky to keep 4G, so having LTE is a miracle in this location. I have T-Mobile.


    Sent from my iPhone 6 using Tapatalk!
    Never had that issue at the hospital here. Wifi is though. Lucky to get 1 wifi bar. Depends on which floor.
    09-02-2015 10:26 PM
  24. TwitchyPuppy's Avatar
    Never had that issue at the hospital here. Wifi is though. Lucky to get 1 wifi bar. Depends on which floor.
    Me neither. But oh wait! I could not use my phone because I was passed out from my car rolling over at 65 mph =P


    Sent from my iPhone 5S using Tapatalk
    09-03-2015 06:21 AM
  25. Ledsteplin's Avatar
    Me neither. But oh wait! I could not use my phone because I was passed out from my car rolling over at 65 mph =P


    Sent from my iPhone 5S using Tapatalk
    Perusing Facebook just didn't seem important, huh?
    09-03-2015 07:33 AM
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