How to Downgrade iPhone 3GS / 3G 06.15.00 Baseband To 05.13.04 Baseband to Unlock and Fix GPS
MuscleNerd has finally released RedSn0w 0.9.14b1 to downgrade iPhone 3GS / 3G 06.15.00 baseband to 05.13.04 baseband which can be unlocked with UltraSn0w and also fixes the GPS, stock firmware issues incurred on iPhone 3GS/3G due to iPad baseband 06.15.00.
In this guide you’ll learn how to downgrade iPhone 3GS / 3G 06.15.00 to 05.13.04 baseband using RedSn0w 0.9.14b1.
IMPORTANT
- This downgrade method applied to iDevices compatible with iPad baseband 06.15.00 i.e.: iPhone 3GS and iPhone 3G only.
- This baseband downgrade method does not apply to iPhone 4, iPhone 4S.
- For those who are wondering if you can update your 3G or 3GS to 06.15 solely for the purposes of downgrading to 05.13.04 and then unlock with UltraSn0w, the answer is “yes” for 3G owners, and “maybe” for 3GS owners.
- you can now downgrade specifically from 06.15 to 05.13.04 (even if you never had 05.13.04 on that device before).
- If you have an iPhone3GS and if digits 3-5 of its Serial Number are 134 or later (xx134…), means you’ve an iPhone 3GS New Bootrom then you should NOT try to install the 06.15 baseband on your 3GS! It will brick your radio, preventing both the downgrade from working and normal iPhone software from using it as a phone! Be warned!
- asdasd
Let’s downgrade iPhone 3GS / 3G baseband 06.15.00 to baseband 05.13.04 to fix GPS and unlock with UltraSn0w…
How to Downgrade iPhone 3GS / 3G 06.15.00 To 05.13.04 Baseband
We assume that you’ve read the important part above and have backed up your personal data using iTunes.
Step 1
Download RedSn0w and the firmware that your iPhone 3GS or iPhone 3G is currently running:
Step 2
Extract the RedSn0w zip file or mount the image if you’re in Mac OS;
Now launch the RedSn0w (Windows 7/Vista users: right-click on RedSn0w > Run as Administrator);
Click Jailbreak button. RedSn0w will now prepare the jailbreak data;
Now check mark the Downgrade from iPad baseband checkbox, RedSn0w will present you with a warning read it carefully and click Yes. Disable Cydia (if you already have it installed), and click Next;
Plug your iPhone 3GS or 3G to your computer and make sure it’s OFF. Do a controlled shutdown of your iPhone (“slide to power off”). This step is very important to avoid mount problems when the ramdisk is running! Now click Next.
Now RedSn0w will guide you through the steps to put your iPhone into DFU mode. Follow the on-screen instruction to put your iPhone into DFU mode.
- Release the Power (corner) button for 3 seconds
- Without releasing the Power button, also hold down the Home button for 10 seconds
- Without releasing the Hom button, release the Power button BUT keep holding the Home button until RedSn0w detects the device.
As soon as your iPhone enters DFU mode, RedSn0w will begin jailbreaking your device. Once the jailbreak process is completed, RedSn0w will tell you that rest of the process will be performed on the device.
You see the Pwnapple running on your iPhone, you’ll eventually get to the “Flashing Baseband” step. THIS STEP TAKES A VERY LONG TIME to complete and there won’t be any feedback while its running. Please just let it be for the next 3-8 minutes! When the ramdisk has done its job it will reboot the phone on its own.
After the reboot, your iPhone 3GS will be running 05.13.04 baseband. You can unlock your iPhone 3GS/3G, Open Cydia, let it update, search for UltraSn0w and intsall it.
That’s it! don’t forget to share your experience in the comments section below…
How to Fix ‘No Signal’ and crashes Problem after baseband downgrade
If you’re facing ‘No Signal’ or crashes after downgrading your iPhone 3GS/3G baseband from 06.15.00 iPad baseband to 05.13.04, don’t worry you can fix it in a few steps mentioned below:
- Open Cydia and go to Manage > Packages
- Look for Mobile Substrate and Ultrasn0w
- First uninstall Ultrasn0w and then re-install it. Reboot your iPhone 3GS/3G This should fix the issue.
- If the problem persists, then uninstall Mobile Substrate and re-install it. Now reboot your device.
Don’t forget to hit the +1, Like and/or Tweet button if you like the post. You can follow us on Google Plus, Twitter (@iphone_heat), Facebook (iPhoneHeatDotCom), and Subscribe to RSS Feed to receive latest updates.
If this page or section of the page needs to be updated, Submit Request
Comments:
Leave a Reply
i have a iphone 3gs with BB 05.16.05…i tried to jailbreak it…now i lost the phone call icon i can’t make any call…just can receive call..it’s like a ipod now…maybe i know what happen and how to solve it???
help please
iPhone 3G iOS 4.1 (8B117)
First 2 tries = failed
I updated my iTunes to the lastest version.
Next try = I couldn’t belive, I really downgraded my BB! o_O
Thanks so much, Dev-Team!
Yahoooooooooooooooooooooo !!!!
It really works///
IPhone 3Gs IOS 4.1 (8B117)
Thanks to ton….!!!
worked a treat great stuff at 1st try there was no activation,second try activation but only one signal bar but no o2 uk no phone number in itunes for my sim card and cant make or receive calls,when i tried cydia i got network error no network connection,so i then installed a wireless adapter on my pc windows 7 then connected the iphone to pc with the adapter then went back to cydia and this starting updating the packages now up and running fine ,brill,however i would like know if i could ever restore from itunes in the futer if anything went wrong with the iphone 3g,would i beable to upgrade ios from 4.1 to 4.2.1 via itunes and keep my unlock is this possible after bb downgrade,before the bb downgrade and jailbreak and unlock i was getting 1015 error in itunes when i tried to upgrade ios to 4.2.1,, so i had to use ireb-r5 to kick it out of error code 1015 and install 4.1,any help would great,thanks in anvance,dont want to try anything with itunes without some advice as this is my 1st jailbreak and unlock,so dont know to much about these things,any advice on this matter would be very greatful,also how to save sshs blobs,uk,many many thanks for this great stuff the Dev team comes up with,regards gypsyjock
i have iphone 3g ios 4.2.1. Downgraded from 6.15 to 5.13.04
but GPS still not working.
Please help!
Hello,
I was having “No Service/Searching…” on my IPhone 3GS using baseband 6.15.00. Network service was erratic and always going off intermittently.
I discovered that I was to downgrade the baseband to 5.13.04 as the original one had GPS, etc issues.
After downgrading, the network issue persisted, so I found that I had to uninstall and re-install Mobile substrate and Ultrasn0w for the network service to be restored.
I was able to uninstall but could not re-install as the service totally went off and I have no Wi-fi to use as an alternative.
I need to re-install the Mobile substrate but could not so I uninstalled Cydia Installer as well thinking I could get it back by re-jailbreaking.
This is however not working.
Kindly lease help me out pleaaaase?
Thanks.
Hello,
I was having “No Service/Searching…” on my IPhone 3GS using baseband 6.15.00. Network service was erratic and always going off intermittently.
I discovered that I was to downgrade the baseband to 5.13.04 as the original one had GPS, etc issues.
After downgrading, the network issue persisted, so I found that I had to uninstall and re-install Mobile substrate and Ultrasn0w for the network service to be restored.
I was able to uninstall but could not re-install as the service totally went off and I have no Wi-fi to use as an alternative.
I need to re-install the Mobile substrate but could not so I uninstalled Cydia Installer as well thinking I could get it back by re-jailbreaking.
This is however not working.
Kindly lease help me out pleaaaase?
Thanks.
Just try to make the baseband again 6.15.00 than try the downgarde. Idk why i had some issues too. First downgrade was a total fail ( no wi-fi, no gps, no sim, no baseband showing) . After that happened, i just reupgrade the baseband than again downgrade. idk why the second time it worked clean and smooth. maybe there are some small bugs.
Thank you for your response, Dragos.
I tried restoring it with itunes but it got stuck in recovery mode with error 1015.
How do I get it out of recovery mode and ensure a permanent fix?
Thanks
I’ve never came across this error
? but I heard of it and this guy can help you in fixing it, if you still have the problem. http://www.youtube.com/watch?v=lKkront2s_0&feature=relmfu
abra o iREB 5 na segunda aba ha um botao para tirar do erro 1015
download latest version of tiny umbrella & select ‘exit recovery’ works 100%. Had this problem before
Hi, After downgrade my 3g 4.1 to 5.13.04 from 6.15 still no service. I followed your remove/install/reboot ultrasn0w and Mobile Substrate instructions. After that it doesn’t recognize my phone number, no carrier in settings and keep checking for Internet Tethering in network.
This phone was working fine for about one year at 4.2.1 – 6.15 BB when suddenly started dropping calls or showing just one bar, I did almost every suggestion under the sky to fix it, even put new sim card (verified with other cellular) and welded bypass wire on the back of circuit board.
More ideas please!
You should upgrade your ios to 4.2.1 again than just upgrade your baseband to 6.15 and downgrade it to 5.13. Maybe there are some ios issues. Anyways if this works you can downgrade your ios to 4.1. if not than it might be a hardware problem.
Thanks Dragos,I’ve upgraded to 4.2.1, BB 6.15, unlocked with ultrasn0w, it recognizes my carrier but intermittently, sometimes gives No Service. When at 4 bars never can place calls, always Failed call.
As you suggested it might be a hardware problem. Any ideas where to start locking?
Hmm…
Uninstall than reinstall ultrasn0w and mobile substrate. If nothing changes than read bellow.
First of all try to shake your iphone and check if you still have signal. If you get the “no service” message when you shake the iphone , it might be from the antena. Also try to move a bit the SIM card slot (only if you can , don’t try to force it). I’m not that good at hardware problems but these can be the main reason why you get the “No Service” message.
I had 3Gs jailbroken with iOS 4.1, which was working fine. Tried upgrade to iOS 6.0.1 by:
1. Restore to ‘iPhone2,1_6.0.1_10A523_Restore’ using iTune 10.7
2. Choosing the ‘iPhone2,1_6.0_10A403_Restore’ IPSW, jailbreak using ‘redsn0w_win_0.9.15b3′.
3. Again using ‘iPhone2,1_6.0_10A403_Restore’ did just boot tethered.
4. Cydia shows 6.0.1
No error with above steps, but didn’t get service.
Then based on the suggestion, I tired:
5. Installed Ultrasn0w Fixer.
Still no luck, then tried:
6. Jailbreak again to Downgrade to iPad Baseband.
7. Using ‘iPhone2,1_6.0_10A403_Restore’ did just boot tethered.
8. Re-install Ultrasn0w Fixer.
Same.. No service still..
Please help
-Jeevs
it really work . thanks u very much
thank you very much it really works
I have a iphone 3gs i i install ipad baseband and i downgrade to 05.13.04 no signal i have a name of my carrier but still no signal bar i install ultrasnow plss help
Offer more details, iOS?
My ios is 4.1 And still no signal any one can help me about my iphone 3gs i buy this iphone in 2010 week 27
Hi
I jailbreaked and unlocked my iphone3g ios4.2.1 and baseband 6.15.0
But now no games are or entertainment apps present earlier are working.
Also whenever I try to download any app from APPstore it gives error that ios 4.3 is required.
Please guys suggest something.
for this problem u gotta change ur iphone buddy.cus the minimum version of ios req is 4.3 now.and there is no update for iphone 3g after 4.2.1.
if u hav jaibroken it then add cydia.hackulo.us to source and intall Install0us.
u can download any app for free.u can download older version of apps there which may work on ur ios version
hi guys,
i have a iphone 3gs.Serial number **947****** and i think it has new bootroom.it is running on ios 4.1 with BB 6.15.00.
i wanna downgrade my bb and update it to ios 6.
and when i try to downgrade BB using redsn0w it always says “Downgrade Baseband Failed”.I donot know the reason but i want to downgrade my iphone’s BB and upgrade it to ios6.please help me.
Thanks alot.
cydia doesn’t opens
Hi,
I have iphone 3gs, i got it unlocked its base band was upgraded to 6.15 and got it unlocked and cydia in it,
I did erase all trying to format it cleaning it all trying to remove cydia and installing latest upgrade version 6.0os, But now its all stuck to connect to i tunes, I went trying to restore it , it says cannot be restored, After some research came to know I have to downgrade baseband to lower version and try to restore it,
But through red snow I come to error exploit error,
Can any one help me out with detail procedure what can i try doing.
Thanks!
work’s and thank you bro….
Hey guys! can anyone help me?!
I have this 3GS with
BB 06.15.00
Version 4.1(8B117)
Model MC131HB
IMEI 01-202600-038170-8
can I upgrade my version to iOS5.1.1?
thanks in advance
No you cant the IPhone 3g’s hardware is not compatible.
GPS does not work
1 flashed modem remained 06.15.00
2 flashed modem changed to 05.13.04 but GPS does not work
I tried several times pillowcase modem returned on 06.15.00
pomzhit advisable please
here is the video:
http://www.youtube.com/watch?v=SVOfKyBykSc
Hi,
My 3GS Serial number is xx95031xxxx. (i.e. greater than 134).
And baseband is 06.15.00.
My GPS is working. Should I still downgrade to 5.13.04 ?
And I am on iOS 6.1. What is the benefit to move to BB 5.13.04 ?
You said your GPS is working, Have you tried it without an internet connection? to see if it really works in a new location? other benefits idk, maybe the chance to use your iphone as a cellphone.
Yes, I am using the phone as my cellphone. ( I do see intermittent cellular connection loss, that used to happen before also). And without wifi maps wont load, but yes, a new location is displayed.
Graciaaaaaaaaaaaaaaaaaaaaaaaaaaaaaas me funciono ahora ya agarra señal el iphone 3gs Muchas gracias.
maiha man buanga mo!!!! bakakon ka!!!! balit intrimis la!!! salamat!!!
You say “disable Cydia if you already have in installed”…
How?
Like, un-jailbreak? or turn off all the features? or what…
Thanks for your help,
~C