Apple released the 3.1 beta firmware and SDK to developers, which seems to include a few new features such as:

  • Non-destructive video editing
  • Voice Control over Bluetooth
  • iPhone vibrates when moving icons
  • New APIs to enable third party apps to access videos and edit them
  • “Fraud Protection” toggle
  • Faster boot time

The biggest change is the update of the baseband to 5.08.01.

If you don’t care about jailbreaking or unlocking your iPhone, then this doesn’t matter to you. However, if you want to keep you device jailbroken/unlocked, you should not update to 3.1 beta, or even the official 3.1 firmware when it’s released to the general public.

Like the Dev Team warned us, updating to 3.1 will prevent you from running any jailbreak method, which would make it impossible to unlock.

Ultrasn0w users must stay away from any firmware updates past 3.0 (including today’s 3.1 beta) until we release the tools that let you update the firmware without updating the baseband.  For most phones out there, baseband updates are irreversible and you’ll lose ultrasn0w.

This warning does not apply to the iPhone 2G, which uses BootNeuter for the unlock, not ultrasn0w.

My advice is to wait and see. The Dev Team is most likely already picking the 3.1 beta apart. Stay tuned for more updates as they become available.

  • Ahmad

    So does that mean that iphone 2G users can upgrade to OS 3.1 and have there iphone jailbreaked and unlocked

  • رائد

    Another pointless update, just to stop people from unlocking thier iPhones I guess.

  • @Ahmad yes, you may to 3.1 and you’ll be fine

  • Rn3sto

    wow… So the dev team would have to unlock and jailbreak the 3gs wirh the 3.1 firmware!

  • iPh0neHT1234

    @Ahmad No you cannot update, they are saying that you will not lose your unlock forever, but you will still be locked because you will not be able to jailbreak because the tools do not support 3.1. Wait until the Dev Team releases a jailbreaking tool for 3.1 and then update. DO NOT UPDATE WITHOUT FIRST MAKING SURE THE TOOLS ARE OUT, yo will not lose your unlock PERMANENTLY but you will LOSE IT until the jailbreaking tools are released

  • iPh0neHT1234

    @Rn3sto I would say no. They usually do not release unlocks for every firmware. If there is an easily exploitable hole in the baseband then they might, but there is a good chance they will simply release the jailbreaking tools with the option to bypass the baseband update, thus upgrading your firmware but not your baseband. That isn’t to say they won’t unlock the new baseband, it just isn’t a guarantee so I would make sure you use their tools to update