Downgrade Baseband 06.15.00 iPhone 3G / 3GS Available Soon

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If you are one of the many iPhone users who have upgraded to iPad’s baseband 6.15.00 using redsn0w and having battery drain, GPS and other issues – here’s a good news – the ability to downgrade your baseband from 6.15.00 to an earlier baseband version may be available soon. This was confirmed by @MuscleNerd on replying a tweet question by a user.

@Lezanz: what about GPS issue? Any progress?

@MuscleNerd: sorry still collecting data on that. But also working on a bb downgrade (!) method for those with unlockable bb

Again, no ETA – let’s be thankful that they are dedicating a lot of time to come up with a fix for us!

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Comments & Discussion

  1. Pingback: Restore iPhone 3G, GS on Baseband or Modem Firmware 6.15.00 | BeijingiPhoneRepair.com

  2. i have iphone 3g 8GB 3.1.3 firmware baseband 6.15.00 my wi-fi is grayed out and showing no wi-fi what to do. i've done everything re jailbreak , reset , reboot but still no sucess help please..

  3. Thanks.. :) Thats great news…. I am also waiting for this.

    I have iPhone 3Gs, 32GB, iOS 4.1, baseband 6.15.00 jailbreak
    GPS not working & also battery draining issue… Tried to fix with Pushfix, Push Doctor.. but useless…

    You Tube, WiFi, Calls, iTune, Web Browsing etc.. working smoothly…..

  4. I updated to 06.15.00 before I knew my iPhone was terminally sick and now I've voided the warranty. If I downgrade the baseband on my 3Gs to something stock, will I be able to bring my iphone into apple and return it? or will the be able to tell I've cracked it before?

  5. Need urgent help for an 3gs/4.2.1/ipad BB. I have an iphone whose bb was 05.15.05. I used the 4.2.1 fw to upgrade and then used redsn0w to update the ipad bb and jailbreak it. The phone came up with network and is working fine. However, I can find a few problems with it:
    -Push doesnt work at all. I have installed push doctor **mod edit: please don't post repos containing warez**
    -The phone crashes a lot more times than expected.
    -Applications like fontswap when opened, they crash and the screen comes back to the lockscreen.

    I read a few posts around where in it talks about downgrading the phone to 4.1 and then using tiny umbrella to kick out of the recovery mode etc.
    I would like to know if that will help me fix the problems? Also I would like to know if there will be a fix for the ipad bb problems around?

  6. Need urgent help for an 3gs/4.2.1/ipad BB. I have an iphone whose bb was 05.15.05. I used the 4.2.1 fw to upgrade and then used redsn0w to update the ipad bb and jailbreak it. The phone came up with network and is working fine. However, I can find a few problems with it:

  7. I upgraded my phone to 4.1 and 06.15.00 which is 3G. Now the phone works well but hangs while navigating and takes lot of time to reboot. any help please.

  8. hi, i just upgraded my 3G iphone to 4.1 and 06.15 baseband..now my phone always reboot during searching network… is the any way to solve this issue?? Please advice
    TQ..

      • i restore it as per advice, but i can't jailbreak it..it said redsnow can't determine firmware..i from malaysia how can i unlock the carrier because i use ultrasnow before this and the problem mentioned above happen..

          • Sorry to bother, i'm aslo has no idea right now what firmware version i wanna restore,i aslo try to upgrade to 4.2.1 but it stuck it stuck at itunes logo, when i try to kick to recovery nothing change….right now my iphone at firmware 4.1, bb 6.15..jailbreak with redsnow 0.9.6b4… what i think right now is how to make the phone unlock for any carrier..i already installed with ultrasnow 1.2 but it happen as i said above..when i insert sim it will hang and reboot then searching back to network carrier..i just can use WiFi only…That is my problem i hope can u can suggest/advice my what firmware and version of redsnow that i can use to unlock the carrier…or i need to wait for downgrade?? Thanks & sorry again because im bothering you…

  9. i have an iPhone 3g 3.1.3 bb 6.15.00. how can i jailbreak this? the old 3.1.3 jailbreaks doesnt seem to work cause of its firmware is 6.15.00. Any help? TIA! :)

  10. I too upgraded from 3.1.2 to 4.2.1 and BB 06.15.00. Cant use 3GS at all now and the battery goes down quicker than a pro's draws but everything else seems ok.
    REALLY looking forward to a fix or downgrade option to rectify this. (my own fault though as i should have read a bit more before upgrading :o (

  11. i have iphone 3g 8gb 3.1.3 05.17.00, i upgraded it to 3.1.3 06.15.00 and now iphone is giving a temperature error, iphone needs to be cool down before it can be used. what to do next?

  12. Can my phone 3gs with IOS 4.2.1 with BB 6.15.00 i pad down to 4.1 OS ?..Please help me…I’m stuck in recovery loop…n can’t restore with i tunes…n still get error 1015…n tiny umbrella “fix recovery” is not effective…n also iReb4 :( (( …Please .!!

  13. u can easily come back on 4.1 but the baseband will stay the same 6.15 just download firmware 4.1 put it on the desktop put ur phone in dfu mode then select the firmware on desktop after installing firmware it'll give error just start tinyambrella and with it just press on exit from dfu mode u r done but with bb 6.15

  14. If it is cannot be done, so be with it !!! Pls come out with a statement that bb 6.15 cannot be downgraded. Don give me hope and no news after that.

  15. Pingback: iTunes 10.5 / iOS 5 - Page 4 - My Garage

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