How to check your iPhone firmware version

October 17, 2007 – 6:19 pm

How to Check iPhone Firmware Version (If your phone is still locked)

1. Turn on the phone and slide to unlock the keypad. iPhone screen should show that only emergency calls is allowed.
2. Enter the following key sequence into the iPhone: *3001#12345#* and then finish by pressing Call button. This will enter field test mode of iPhone.
3. Tap on Versions.
4. The firmware revision information of iPhone installed out of the box will be shown on LCD screen. The following guide will match the firmware revision to the firmware version.

03.12.06_G - firmware version 1.0.0
03.14.08_G - firmware version 1.0.1 or 1.02
04.01.13_G - firmware version 1.1.1
04.02.04_G - firmware version 1.1.1

How to Check iPhone Firmware from Packaging Box Serial Number

If you want to know your iPhone firmware version without unwrap and open up the package, the serial number of iPhone wrote on a sticker on the box may provide you some hint. In fact, if you order a phone online from Apple, it’s possible to see what is your iPhone’s serial number when you check your invoice online, even before before the phone arrives at your hand.

A typical iPhone will have a serial number in the following format: 7T727XYZWH8

The serial number is made up of several blocks which have its own meaning, as explain below:

Digits 1 to 3 (7T7) = Year / Batch code
Digits 4 to 5 (27) = Week of manufacture
Digits 6 to 8 (XZY) = Unique identifier part of the S/N
Digits 9 to 11 (WH8) = 8Gb model

The only significant number in the serial ID number to help you guess which firmware version your iPhone has are digit 4 and digit 5, which show week of manufacturing of the iPhone. It has been known that iPhone version 1.1.1. started shipping to customers from week 39 onwards.

So if your 4th and 5th digits in iPhone serial number is less than 39 (38 or lower), it’s almost certain that the iPhone as firmware 1.0.2. If the number is greater than 39 (40 and higher), it’s also almost certain that the firmware in iPhone will be 1.1.1 or newer, where you probably need to start arranging to return the phone if you’re not planning to use the phone on AT&T. Grey area is when the digits is 39, where the iPhone has equal chances to be 1.0.2 or 1.1.1. To actually check the correct firmware version, you have to use other methods listed below.

Thanks to MyDigitalLife.info

  1. 15 Responses to “How to check your iPhone firmware version”

  2. Feel free to post any questions if necessary, I’d be glad to help!

    By admin on Oct 17, 2007

  3. Hi, do you know if some 1.1.2 are already sold in us ? => do you think 1.1.1 is installe for sure in devices whose serial is up to 44 or 45 (in us only) ? many thanks :)

    By lio on Nov 8, 2007

  4. PLEASE HELP ME UNLOCK MY IPHONE 1.0.0
    i COULD NOT UNLOCK IT BECAUSE I THINK IT IS NOT 1.1.1
    i TRIED A LOT..
    pLEASSSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    HELP ME

    By sam on Nov 10, 2007

  5. ————————————————
    Hi, do you know if some 1.1.2 are already sold in us ? => do you think 1.1.1 is installe for sure in devices whose serial is up to 44 or 45 (in us only) ? many thanks
    ————————————————

    I really am not sure if the 1.1.2 firmware devices have hit the shelves here in the US quite yet. I have no intentions of upgrading to 1.1.2 BUT will be writing up a complete virginization/1.1.1 upgrade tutorial very soon.

    By admin on Nov 14, 2007

  6. ———————————————
    PLEASE HELP ME UNLOCK MY IPHONE 1.0.0
    i COULD NOT UNLOCK IT BECAUSE I THINK IT IS NOT 1.1.1
    i TRIED A LOT..
    pLEASSSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    HELP ME
    ———————————————

    Sam, has your iphone ever been unlocked or used? If not, the easiest way to unlock it will be to do the 1.0.2 upgrade followed by the 1.1.1 upgrade. As long as you don’t unlock it at the 1.0.2 firmware via anysim, unlocking 1.1.1 is rather easy. I will try and get that tutorial up yet today.

    By admin on Nov 14, 2007

  7. i just pick-up an iphone last saturday and it is 1.1.2 and i can;t unlock it.
    so if anyone can help me that will greatly appreciated. thanks a lot

    By Nelson Tan on Nov 26, 2007

  8. hi i have a iphpne with 1.1.0.2 and accidentally upgrade it to 1.1.2.1 and now my phone locked what can i do ?

    By msap67 on Dec 1, 2007

  9. Hi

    How do i know the new version by identifying the serial number

    thanks you

    By sing on Dec 24, 2007

  10. i upgraded my firmware on my fone and now its blocked how do i downgrade my phone and get it unblocked

    By bobby on Jan 27, 2008

  11. I had A unlocked iphone that Had 1.0.2 firmware
    accidentley I restored the phone to factory status.after trying to activate and unlock the iphone by using the completeunlockpack2.rar with iphonefirm1.0.2.zip and Itunes 7.3.2.I get a message that was a error(01)at the restore in itunes.I get confused because I read that message is normal but when I tried to perform that rest of the process,the app tapp installer I get a message that the file was not transferred and the phone still not active or unlocked.can you please help meps the accidentley restore was done with itunes 7.6 if it matters.also I tried several times to restore and activate and unlock the iphone with the programs I just mention above.I hope did not damage the phone. rigth now the iphone shows on the screen request to activate and to connect to itunes.I am using a old att sim card that is not active,also tried the process with my active t mobile.I am telling you all of this,to help find the problem thanks again

    By sergio on Feb 18, 2008

  1. 5 Trackback(s)

  2. Oct 17, 2007: Unlock-it.org » Blog Archive » Guide to unlocking your iPhone.
  3. Oct 17, 2007: Iphone | Apple | Mac Blog » How to check your iPhone firmware version
  4. Oct 17, 2007: iphone » How to check your iPhone firmware version
  5. Oct 18, 2007: Unlock-it.org - Easy iPhone unlock instructions » Blog Archive » How to unlock your 1.0.2 iPhone
  6. Oct 18, 2007: Unlock-it.org - Easy iPhone unlock instructions » Blog Archive » Unlocking your version 1.0.2 iPhone (the easy way)

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