How to find iPhone Baseband version
Knowing what baseband version your iPhone is using is crucial to seeing if you can unlock your iPhone with ultrasn0w or other unlocks.
Find your iPhone Baseband Version
Checking your baseband is really easy, grab your iPhone and do the following:
- Tap on “Settings”
- Tap on “General”
- Tap onto “About”
- Slide down and look next to “Modem Firmware” – these numbers will be your baseband version
For instance, in the screenshot the baseband version is 05.14.02 which makes it compatible with the ultrasn0w unlock for iOS 4.2.1.
We’ve discussed what iPhone baseband is before, it’s just your iPhones cellular modem firmware and you’ll need to know what it is if you plan on using an iPhone unlock.

how do i get my baseband without unlocking the phone?
when i start it, it says i need to insert a valid sim card inside. without which i cannot do anything on my phone.
I have the same problem and I didn’t find an answer nowhere.
You can get a valid sim card at your local carrier. You don’t have to activate it after purchase, just stick it in and connect your phone to iTunes. The phone will activate and you can chec in Settings –> General –> About.
what if my baseband is missing.?how can i find it.?please help me
i need help.
i have an iphone 3gs. I jailbroke and updated to ipad baseband 6.15.00 in order to unlock with ultrasn0w.
and its not working. im on fw 4.2.3 and the ultrasn0w is 1.2.3.
please i am gonna throw my iphone out the window pretty soon. how do i unlock my iphone
hey sadface, I had the same problem but now it’s working. send me an email and I will help you out.
i need help in unlocking my iphone baseband 04.11.08 i run ios5
hey bro, can you please tell me how to do that? I have an Iphone 4g with IOS 5 , Baseband or Modem Firmware 04.11.08. can you please help me with this? I would really appreciate that
I have the same problem. I jailbreaked my phone with ultra snnow. I have an iphone 4 with ios5 baseband and moderm firmware 04.11.08. It is not reading my sim card. Help Please.
@Sad Face
Please don’t thorw your iPHONE just send it to me
ma iphone s crashed(stuck n recovery mode) so how can i know baseband ?
plz help me….!
hey bro, can you please tell me how to do that? I have an Iphone 4g with IOS 5 i jst upgraded , i dont know my baseband.it now says i need a valid sim card without pincode to activate device… i dont even understand this