1. joaofgdurao's Avatar
    Hi everyone,

    Would like to have some help from you.

    Just updated my iPhone 6 from iOS 8.0.2 to iOS 8.1 and it seems my 'no signal' problem is still happening.

    What I've already tried:
    -Restoration over the air;
    -Restoration in iTunes;
    -New Nano SIM CARD;
    -Reset network settings.

    My iPhone goes on 'no signal' from time to time and the signal comes back again after 45 seconds or so.

    Is this iPhone malfuction? Should I contact carrier to get a new one? Is there anything else I can do?

    Had no problems with WiFi in 8.0.2 and also had 8.0.2 on my iPhone 5 and there were no problems.

    Thanks!
    10-20-2014 04:04 PM
  2. dcharleyultra's Avatar
    Could it be a cell tower issue?
    10-20-2014 04:06 PM
  3. Flow39's Avatar
    I'm guessing a carrier issue. You've done everything you can, so I would check with your carrier.
    10-20-2014 04:16 PM
  4. joaofgdurao's Avatar
    Hi both and thanks for answering.

    Could it be a cell tower issue?
    No. My colleagues/friends have same carrier in iPhone 5 and don't have any problem.

    I'm guessing a carrier issue. You've done everything you can, so I would check with your carrier.
    I forgot to mention that I've contacted my carrier on a 1st step and they said everything is ok for them. Should I try contacting again?

    PS: With 8.1 it seems that time to get 'no signal' is now longer until it appears again.
    10-20-2014 04:25 PM
  5. bamf-hacker's Avatar
    Did you try to restore your phone and set it up as a new device to make sure its not cruft left over from previous installs?
    10-20-2014 04:26 PM
  6. joaofgdurao's Avatar
    Did you try to restore your phone and set it up as a new device to make sure its not cruft left over from previous installs?
    Ok that one I have not tried! You saying that I should do as new one with random new iCloud account and stuff, correct? If yes, i'll try this one tonight and let you guys know.
    10-20-2014 04:28 PM
  7. joaofgdurao's Avatar
    By the way, for your reference, when I turn off/on my mobile data I get my signal back!
    10-20-2014 05:07 PM
  8. eyecrispy's Avatar
    I haven't seen this yet with 8.1, but did notice it a few times on 8.0.2. I'll keep an eye out for it and let you know if I see it.
    10-20-2014 05:09 PM
  9. bamf-hacker's Avatar
    Ok that one I have not tried! You saying that I should do as new one with random new iCloud account and stuff, correct? If yes, i'll try this one tonight and let you guys know.
    Back up your phone, then restore it from iTunes. When it asks you if you if you want to restore from a backup or setup as new, select new.

    If everything works the way it should then it is likely something in your data that is the issue.
    10-20-2014 05:11 PM
  10. panjwani's Avatar
    Yup it cld b a service provider issue its not a frequent issue at all
    10-21-2014 02:03 AM
  11. plantemichel's Avatar
    No issues so far yet


    Sent from my iPhone 6 using Tapatalk
    10-21-2014 02:39 AM
  12. joaofgdurao's Avatar
    Good morning,

    Had no time yet for the restore but now i noticed that i dont lose my signal for almost 12/14 hours. Dont know if its fixed, but im still trying to figure out what can cause such thing.

    Will wait for signal loss to make the restore, if it happens again...
    10-21-2014 07:19 AM
  13. eyecrispy's Avatar
    Did you have signal issues with your previous phone?
    10-21-2014 07:56 AM
  14. joaofgdurao's Avatar
    No. But only used my previous iPhone 5 with 8.0.2 for about 3hrs then i got the 6.
    10-21-2014 08:02 AM
  15. Marcus Vasquez's Avatar
    I would say don't update over air and just update in iTunes. I start all over again with iOS is update and never have issues. Hope this helps. Happy Tues!
    10-21-2014 09:01 AM
  16. joaofgdurao's Avatar
    Yesterday i turned off 4G(my location in Portugal does not support it, only close to big city's!) maybe that was the reason? I'll turn it on again to see what happens!
    10-21-2014 09:04 AM
  17. joaofgdurao's Avatar
    It's confirmed. When I turn on 4G i lose my signal. Im out of 4g range in my location. What will happen when I wanna use 4G? Thats the question now.
    10-21-2014 10:21 AM
  18. Bruninho98's Avatar
    Hello Joo, I'm also from Portugal (portugus ) and I'm experiencing the same issue after 8.1! Just sent u private message.
    joaofgdurao likes this.
    10-21-2014 02:05 PM
  19. heffzilla2's Avatar
    I'm losing signal also. Tried restoring, starting from a clean device, and everything else I could think of. It's not as bad as 8.0.2, but it still happens enough to be frustrating.
    Also tried new sim
    10-22-2014 11:01 AM
  20. joaofgdurao's Avatar
    Dia you try to turn off 4G as we did? It worked for us!
    10-22-2014 11:07 AM
  21. anon4757448's Avatar
    I was having this issue with my 6 on 8.0.2. I called my provider and was told there were no network problems. Went to the Apple Store and was told there were no network problems with the phone. Went home and restored as new then waited for 8.1 thinking that would solve everything.

    Still having the problem. I'm going back to Apple today.
    10-22-2014 11:09 AM
  22. heffzilla2's Avatar
    Dia you try to turn off 4G as we did? It worked for us!
    No, turning off 4g isn't a solution, it's a band aid. I have 4g signal at my house, so I definitely don't want to turn it off.
    10-22-2014 01:34 PM
  23. C6TX6's Avatar
    Follow this guide here how to get your phone to display signal in dBM instead of dots:

    https://www.yahoo.com/tech/how-to-di...257989351.html

    Then take note of the signal. A higher number is better but remember it's a negative number so (ignoring the negative sign) the higher the number is actually a WORSE signal. For example, -88dBM is much stronger (by 10X) than -98dBM.

    Signals weaker than -105dBM are going to make data rates suffer. Signals lower than -115dBM are on the fringe of losing service altogether. (dreaded NO SERVICE on device!)

    Now in our area (USA, MD, Verizon/ATT), switching off LTE (called 4G in Europe) often results in a better signal. I live in a 4G area but signal is fair to bad, typically -105 to -112 dBM. If I turn off LTE (4G), the signal will often jump to -90dBM or so. In areas where 4G signal is poor I turn it off so the device seems to have better reception. Just an idea...
    10-22-2014 08:39 PM
  24. Lesawags's Avatar
    This just works for the AT&T phones right??
    Id love to do this with Sprint iPhone
    10-23-2014 12:06 AM
  25. housebee's Avatar
    I have similar problem on iPhone 5. Here is a video. Do you have the same symptoms?

    10-30-2014 07:35 AM
61 123

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