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thelatinist

macrumors 603
Original poster
Aug 15, 2009
5,937
51
Connecticut, USA
I've seen a lot of people looking for a way to find out whether a new iPhone 3G/3GS they're about to purchase will have 3.0 or 3.1 installed out of the box. To help them out, I'd like to gather information from people who've recently purchased iPhones about when their phones were manufactured and what OS came preinstalled on them.

If you look at your iPhone serial number, you can easily find out the year and week of manufacture. The third character will be the year of manufacture and the fourth and fifth will be the week of manufacture. So my serial number

88930XXX#XX

corresponds to a manufacture date in week 30 of 2009 (for those interested, week 30 this year encompassed the dates July 13 through July 19.

So, please post the following for your iPhone:

Model: 3G/3GS
Week of manufacture: 01-52
OS preinstalled: 3.0 or 3.01

I will start:

Model: 3GS
Week of manufacture: 30
OS preinstalled: 3.0

(Note: I will update this post with a table showing OS by week for each device)

3GS:


Week 29 - 3.0
Week 30 - 3.0
Week 31 -
Week 32 -
Week 33 -
Week 34 -
Week 35 -
Week 36 - 3.0.1
Week 37 - 3.0.1
Week 38 -
Week 39 - ? / 3.0.1 (Germany)
Week 40 - 3.1
 
I'm guessing at this point that the majority of phones being sold have the 3.1 on it.
 
Purchased June 29th.

926 is my code.. so week 26?

The week before purchase.

Edit: Bah, sorry. Guess mine is irrelevant to your request since it obviously came with 3.0 and was bought a while back.
 
I'm guessing at this point that the majority of phones being sold have the 3.1 on it.

It really depends on where you buy them and how quickly they go through stock. Some places are selling phones manufactured back in July or early August which definitely have 3.0 on them.
 
Well if you buy your phone at an Apple store, the odds of you getting a 3.0 are likely slim, and even if they had old stock, you get what they bring you from the stock room. It's not like they let you pick through a pile of boxes.

:confused:
 
I bought a new 3Gs to replace my 3g this past Thursday, 10/1. My build says 937, but mine was preinstalled with 3.1
 
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