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Can’t Download Ultrasn0w 1.2.3 on iPhone 3GS with 06.15.00 Baseband

Hello guys, I jailbroke my iPhone 3GS using Redns0w 0.9.6rc16. All was working well during the jailbreaking process. I managed to install iPad 06.15.00 baseband as well as Cydia app on my iPhone. However, I am wondering why I can’t download Ultrasn0w 1.2.3 to unlock my iPhone. I am connected to Wifi with an active internet connection, rebooted and re-unplugged my router but still no result. I suspected that it has something to do with iPad’s baseband. Anyone, please direct me to fix it. Thanks!

Asked by: Apollo from Lincoln, Nebraska

Hello Apollo, you should be able to download it as there is no bug related to Cydia, Ultrasn0w, and iPad 06.15.00 baseband on jailbroken iPhone 3GS. The only known bug related to iPhone 3GS and iPad’s baseband is GPS functionality of the iOS, where the GPS service will get disabled and all apps that utilizes GPS functionality will not work.

Anyway, just try to download Ultrasn0w every now and then as there are countless of iPhone users downloading the software to unlock their device. Just like other websites, due to large traffic, Cydia sometimes experience downtimes. Additionally, you should also check if you have installed the right Ultrasn0w repo, it should be Also, you should only download Ultrasn0w 1.2.3 from and not from other third-party repositories. Once you have successfully downloaded Ultrasn0w 1.2.3, you can check this tutorial on how to unlock iPhone 4 on iOS 4.3.3 using Ultrasn0w 1.2.3.

If these tips don’t work, then you can download and install Ultrasn0w manually through your Mac or Windows using iPhone Explorer and the DEB file of Ultrasn0w 1.2.3. You can check this blog post on how to download and install Ultrasn0w 1.2.3 manually.

Unlock iPhone 3GS with iPad Baseband

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