How do you check your iPhones build week?

Discussion in 'iPhone' started by ki2594, Jul 22, 2009.

  1. ki2594 macrumors 6502a

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    Apr 12, 2008
    Location:
    Carmel, IN.
    #1
    So i just got my replacement 3GS, and i remember a thread a while ago talking about how certain build weeks are the best, what are those weeks and how the heck do you guys know? lol thanks.
     
  2. -aggie- macrumors P6

    -aggie-

    Joined:
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    Where bunnies are welcome.
    #2
    IMO, I would ignore that thread about certain build weeks being the best. It just seems like something else to be OCD about (and that's not meant to be disparaging in any way).
     
  3. aprofetto macrumors 6502a

    aprofetto

    Joined:
    Dec 19, 2008
    Location:
    Hamilton, Ontario
    #3
    I think the second, third and fourth digits of the serial number represent the month and week respectively.

    So example, 920 is built in 2009, on the 20th week.

    That being said, replacements are tricky, I think the serial numbers are reset.

    EDIT: Does your serial number start with 5K?
     
  4. ki2594 thread starter macrumors 6502a

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    Apr 12, 2008
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    Carmel, IN.
    #4
    my serial number starts with 2 8's.
     
  5. aprofetto macrumors 6502a

    aprofetto

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    #5
    What are the next 3 numbers?
     
  6. auburnfan24 macrumors regular

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    Mar 6, 2008
    #6
    i believe the whole '5K' thing was stopped after the first generation. every replacement i have had hasn't started with 5K since then.
     
  7. aprofetto macrumors 6502a

    aprofetto

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    Dec 19, 2008
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    #7
    Ya I think you're correct, someone else in another thread pointed that out too.
     
  8. maboroshi macrumors newbie

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    Jun 2, 2009
    #8


    Just how many replacements have you had??
     
  9. Geniusdog254 macrumors regular

    Joined:
    Jun 20, 2008
    #9
    Haha nope I wish that was true. The original batches of exchange 3G's were also using the 5K tags. I've had my 3G replaced 3 times & the first two (one from october last year & one from december) both carried the 5K tags however the 3rd one from April of this year is using the 88 tag.
     
  10. ki2594 thread starter macrumors 6502a

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    Apr 12, 2008
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    Carmel, IN.
  11. aprofetto macrumors 6502a

    aprofetto

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    Dec 19, 2008
    Location:
    Hamilton, Ontario
    #11
    29th week of 2009.
     

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