Does the week number in the serial actually make a difference?

Discussion in 'iPhone' started by Pepper Pot, Aug 2, 2010.

  1. Pepper Pot macrumors member

    Joined:
    Nov 15, 2009
    #1
    I've just got a replacement for my faulty iPhone which was a week 29, my replacement is a week 26, and I've noticed that the signal strength is slightly weaker (when I first got my other iPhone the signal was quite weak but after a day or two it got stronger, so maybe it needs to settle or somethin?)

    My question: does the build week number actually make a difference? Did they alter anything in the design at all!? I'm just curious is all :)


    -----------------------------​

    My faulty iPhone had a flickering screen that flashed different brightness' all the time, after the Genius looked at the phone he was amazed and said he'd never seen it before because as you look inside the headphone jack you could see the screen shining through the jack, bizarre - I had a unique iPhone :) but now I will never see it again:(
     
  2. maturola macrumors 68040

    maturola

    Joined:
    Oct 29, 2007
    Location:
    Atlanta, GA
    #2
    Yes it means that it was made on a different week :D:D:D

    no body really knows, people say that latest weeks works better, but the fact is that every batch of product manufacture can have slimly different in process
     
  3. F123D macrumors 68040

    F123D

    Joined:
    Sep 16, 2008
    Location:
    Del Mar, CA
    #3
    Week 29 for a week 26? Does that mean refurbished phones are in circulation?
     
  4. mcdj macrumors 604

    mcdj

    Joined:
    Jul 10, 2007
    Location:
    NYC
    #4
    sorry you had to wait an excruciating 20 minutes for a reply. you would have loved the 1800s.
     
  5. Pepper Pot thread starter macrumors member

    Joined:
    Nov 15, 2009
    #5
    I know, right? :rolleyes:
     
  6. Pepper Pot thread starter macrumors member

    Joined:
    Nov 15, 2009
    #6
    Maybe they had the replacement phones lying around in the back?

    how can I tell if it is a refurbished iPhone? My serial is 88026AKV***
     
  7. extraextra macrumors 68000

    extraextra

    Joined:
    Jun 29, 2006
    Location:
    California
    #7
    Supposedly the newer weeks don't have a signal issue but it's not proven. Some people are saying their week 30s don't have signal issues, others are saying they do. But that is what's said for any production week, really.
     
  8. F123D macrumors 68040

    F123D

    Joined:
    Sep 16, 2008
    Location:
    Del Mar, CA
    #8
    To be honest, I'm not sure. I've noticed everyone who's gotten a replacement has received a phone with a more recent manufacturing week, not an older one.
     
  9. Jnardis macrumors 6502a

    Joined:
    Jun 2, 2010
    #9
    I have week 30 and I definitely have a signal issue.
     
  10. Pepper Pot thread starter macrumors member

    Joined:
    Nov 15, 2009
    #10
    My old phone had no signal issues and had a really strong signal most of the time, this phone has 1-2 bars...

    I'm starting to worry now :(
     
  11. wirelessmacuser macrumors 68000

    wirelessmacuser

    Joined:
    Dec 20, 2009
    Location:
    Planet.Earth
    #11
    Yes, it's critical to get the newest if you want a properly functioning phone.

    I'm on replacement number four. This one works as it's designed to function. The first three were labeled as defective by the genius at the Apple store. While this cost me a tremendous amount of time and trouble, at least I now have what I paid for. A working iP4.
     
  12. Ferris23 macrumors 68020

    Joined:
    Sep 24, 2007
    #12
    B.S
     
  13. b-rad g macrumors 6502a

    b-rad g

    Joined:
    Jun 29, 2010
    #13
    Not true. Week 21 here and no antenna or proximity sensor issues.
     
  14. samcraig macrumors P6

    Joined:
    Jun 22, 2009
    #14
    Was your old phone on 4.0 or 4.01?
     
  15. Sherifftruman macrumors 6502

    Joined:
    Jun 23, 2010
    #15
    I had a week 30 owned by my sister-in-law side by side with my launch day week 25 this past weekend and both reacted the same when touched or held in teh magic spot. I really think the issues people may be seeing with differing signal have to do with what signal they are receiving at that moment in time.
     
  16. Pepper Pot thread starter macrumors member

    Joined:
    Nov 15, 2009
    #16
    Both phones are/were on 4.01
     
  17. Monkeymonkey macrumors newbie

    Joined:
    Aug 2, 2010
    #17
    Manufacturing week number makes no difference at all.
     
  18. S1njin macrumors 6502a

    S1njin

    Joined:
    May 3, 2010
    Location:
    NJ
    #18
    That's amazing. I think some folks are just OCD w/ their device.
     
  19. wrkactjob macrumors 65816

    wrkactjob

    Joined:
    Feb 29, 2008
    Location:
    London
    #19
    How can you tell which week it was built, I have succumbed and bought one.
     
  20. Built macrumors 68020

    Joined:
    Oct 3, 2007
    Location:
    Los Angeles
    #20
    My week 25 has no reception issues.
     
  21. OC513 macrumors 6502

    Joined:
    Jul 19, 2007
    Location:
    NYC
    #21
    exactly......week 22 and I have zero issues.
     
  22. DeusInvictus7 macrumors 68020

    Joined:
    Aug 13, 2008
    Location:
    Kitchener, Ontario
    #22
    Week number can potentially make a difference. My friend has a week 29, and she is saying she can reproduce the signal issue quite well apparently. I have a week 30, and I can not replicate the problem in a big enough scale, maybe 1 bar after gripping it for a minute or two.
     
  23. wrkactjob macrumors 65816

    wrkactjob

    Joined:
    Feb 29, 2008
    Location:
    London
    #23
    Ah got it, week 30, drops 2 bars in "the grip" when naked, only one bar and more slowly with my old 3G Gear4 'tyre tread' rubber on.
     
  24. mad-dog-one macrumors 6502

    Joined:
    Aug 14, 2009
    #24
    The signal strength on my week 26 iPhone 4 32GB running iOS 4.01 varies from 1 to 5 bars for no apparent reason, even without touching the phone, although it has never dropped a call. Could this variation be due to the availability and signal strength for different cell phone antennae?
     
  25. andybno1 macrumors 68040

    andybno1

    Joined:
    Nov 6, 2007
    Location:
    Liverpool, UK
    #25
    week 22 antenna issue

    spend more time on gprs than 3g at home an when i do get 3g i get 1-2 bars but go downstairs i have no signal all together
     

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