iPhone modem firmware is generally called iPhone baseband. Baseband controls carrier or SIM and cellular data network. This is included into IOS. We can easily check our baseband version into iPhone. Follow the instructions below after the next paragraph.

When we update IOS, baseband is also updated. Updated baseband increases the functionality of the modem. It is also used to lock iPhone to a specific carrier. We have to unlock baseband if we want to use other carriers. But unlocking is not available for all baseband versions. If the baseband is upgraded, it is not possible to downgrade it. So we need to preserve baseband while updating IOS.

Find baseband version:

  • Open settings and tap on ‘General’.

General settings

  • Now tap on ‘About’.

entering into about to check baseband version

  • Here you will find your iPhone baseband version or modem firmware version. In the below picture the version is ‘06.15.00’.

iPhone baseband version

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3 Responses to How to find iPhone baseband version (Modem firmware)

  1. [...] How to find iPhone baseband version (Modem firmware) [...]

  2. [...] Check the baseband version. See – what is baseband and how to find it? [...]

  3. [...] who want to unlock after jailbreak. Because when you update firmware to 4.3.3 using iTunes, the iPhone baseband will also be updated and the latest baseband unlock is not possible still now. So, use sn0wbreeze [...]

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