Earlier this week we told you that The famous Dev Team member known as @MuscleNerd had made some really good progress on an iPhone 3G / 3GS baseband 06.15.00 downgrading solution.

Downgrade 3g-3GS 06.15.00 Baseband

It was a number of big news simply because the iOS 4.1 and iOS 4.2.1 firmware people who upgraded to the present specific iPad baseband to get their iPhones unlocked.

All those users are already stuck on it, without any way to downgrade their iPhone 3g / 3GS to a normal iPhone baseband. As there have been several problems being gone through by people immediately after upgrading, for example — loss of their GPS functionality, it’s no doubt a baseband downgrading solution continues to be on their thoughts for a long period.

How to Downgrade 06.15.00 baseband to 05.13.04
iPhone 3GS 06.15.00 Baseband Downgrade Tool – This Sunday

Downgrade baseband 06.15.00 to 05.13.04 — Release Date

Finally, with respect to a recent twitter update by MuscleNerd the expected 6.15.00 baseband downgrading software will be released this Sunday. You will need to remember that this isn’t a verified launch date. This is just a prediction by means of MuscleNerd on as soon as it’s going to be released.

Downgrade baseband 6.15.00 download tool

We are going to keep our eyes and ears open on this Weekend for a release of the iPhone 3G / 3GS 06.15.00 baseband downgrading tool. When the baseband downgrade tool will be released we will provide a step by step guide on How to downgrade 06.15.00 baseband to 05.13.04 to get working GPS and Ultrasn0w unlock support.

Are you currently one of many users waiting for this downgrading tool?

Don’t forget to share your reactions below.

  • sam

    anybody work on 4.11.08 or 4.14.01?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

  • Alan

    help BB 4.12.01 Unlock

  • Lakala

    I updated my 3GS to 5.1.1 & install ultrasn0w!
    But it keep searching for signals:(need help

  • sunil

    is that works on iphone 4 baseband 4.11.08 ?
    4.11.08 unlock solution

  • jhon

    is that unlocks base band 04.11.08 we are really looking forward on iphone 4

  • Bebuchi00

    Dear Lakala I just had the same problem I don’t know what baseband are you on but my 3GS is baseband 06.15.00 on 4.1 iOS and I try to upgrade to 5.1.1 iOS without try to preserve my baseband I taught that I was lock for good on that baseband and that nothing was going to happen if I didn’t preserve it wrong some way how my baseband file got corrupted my phone upgrade to 5.1.1 no problem but my iPhone keept searching for signal. Solution luckily I had my blobs save to 4.2 I had to downgrade with iFaith back to 4.2 and use redsn0w to jailbreak with the option ipad baseband check. Then after all that I got my 3GS working again I hope this help

  • Geep

    Longest. Weekend. Ever.

  • Ismail

    Try to install BB again through redsn0w. It will work since I had the same problem.

  • Sleekpaul

    It’s a great relief for many of us who have got our official unlock through ATT. Eagerly waiting for this Sunday 🙂

  • dans

    05.16.05 iphone 3gs new bootrom (from 2012) it could be possible to downgrade? and unlock?