iPhone Tips: How to Check iPhone Firmware and Baseband Version

This is a iPhone tip for newbie. In some situations (e.g. jailbreak), you’ll need to know the firmware version or baseband version. Where can you retrieve this information from iPhone?

That’s very simple. All the iPhone configuration information are resided inside the “Settings” screen. For both firmware and baseband version, they can also be found under settings.

So, simply tap on “Settings” screen and then tap “General”. Further, tap on “About” to reveal the information about your iPhone. The “About” screen displays all the general information about your iPhone including number of songs, cellular network, etc. And you can find the firmware version and baseband in the “Version” field and “Modem Firmware” field respectively.

iPhone Setting - General iPhone Firmware Version

That’s normal way to check the firmware version. But what if my iPhone is not activated and can only make emergency call. You can dial the secret phone number: *3001#12345#*

iphone_secret_no

Once you make the call, you can tap on version to reveal the version number. If you dial the above number on normal iPhone, you’ll be brought to a field test screen.

Note: The secret code may not work for all iPhone firmware version.

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Tagged as: firmware, iPhone Tips

{ 2 comments… read them below or add one }

1 neeku May 5, 2009 at 1:37 pm: Thanks for the guide, but i can’t access the settings or so from the emergency call screen. my phone is new and not unlocked yet, but i need to find the version before unlocking… so could you help me with this? (secret code doesn’t work).

2 Divitya June 18, 2009 at 3:42 am: I have a 2g iphone running a 1.1.4 , i upgraded it using itunes 8.2 to 3.0 and now the phone is locked again. Also i am unable to check the firmware version using the *3001#12345#* method the code does not work ….what is the code to check the firmware after getting the latest upgrade ? Also should i wait for Ultrasnow to be released or can i unlock the phone as it is a 2g ?