iPhone 3G is Now Unlocked for Life, on Baseband 06.15.00 - iPhoneHeat

iPhone 3G is Now Unlocked for Life, on Baseband 06.15.00

Any iPhone 3G, with baseband 06.15.00, is now unlocked for life. Since iPhone 3G won’t be getting any firmware update starting iOS 4.3, your iPhone 3G will remain unlocked for life. MuscleNerd also confirmed this in a tweet:

“Because there’s no 4.3 beta for iPhone3G, it’s effectively unlocked for life via the 06.15 ultrasn0w unlock”

Note: This is applicable to all those iPhone 3G owner who have updated their iPhone 3G to Baseband 06.15.00. (How to: Check iPhone Baseband version)

No future firmware update is a bad news for iPhone 3G baseband 06.15.00 users, because most of them are experiencing GPS issues. The Dev Team is aware of the GPS problem, and currently working on a way to downgrade iPhone 3GS 06.15.00 Baseband with iOS 4.3 firmware.

How many of you have an iPhone 3G or 3GS with baseband 06.15.00 and are experiencing GPS issues? Go wild in the comments section below…

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72 comments… add one
AfRoO January 19, 2011, 2:36 pm

seem to me 3G being Junk lol 4 Apple

lim January 19, 2011, 3:16 pm

battery like eating fast…help us soon dev 😀

Iceman0013 January 20, 2011, 4:45 am

I had the battery drain issue too, but I re-applied the IPSW and set it up as a new phone in iTunes and life is great now. EVERY time I tried to restore a backup, it drained battery like a rock…….

lilfellabob January 19, 2011, 3:31 pm

Yeah, GPS issues on 3gs 6.15.00 =(

haragog January 19, 2011, 5:38 pm

I really want 4.2 (better iP3g performance) but updating to a faulty baseband doesn’t seem like a good option! I was getting pretty pumped up with the early prospect of new method with sn0wbreeze, or whatever. But I guess, we’ve been forgotten.
Please devs, if our iPhones are never going to be updated again please let them go with proud/a bang!

DJYT04 January 19, 2011, 6:00 pm

3GS will geet update ?

Fat January 19, 2011, 8:34 pm

I have baseband 6.15.00 on iphone 3G and no gps service. Gps does not work at all.

Saqib419 January 19, 2011, 11:15 pm

Same here No GPS for me either Base Band 06.15 Iphone 3Gs

Defender January 20, 2011, 12:13 am

GPS issues on 3gs 6.15.00 :'(

typhone999 January 20, 2011, 1:38 am

I am on 06.15.00 firmware 4.2.1 and my gps sucks now. PLEASE Help. I know that since apple has uprgraded they idevices the people in the 3g world is not gonna get any assistance.

Quicky January 20, 2011, 2:54 am

GPS issue And Battery drain on my 3GS 06.15.00. Pledat help us soon

Kaizoku January 20, 2011, 2:27 pm

Such useless info, it’s pretty much obvious?

jabs January 21, 2011, 12:46 am

my GPS works, but the battery life is a mess. there’s always a prompt saying “could not activate cellular data network”. irritating.

pongra January 21, 2011, 2:23 am

also have 3G and 4.2.1 6.15.00 BB, w8 for GPS fix or downgrade BB, guys help us

PANKAJ June 15, 2011, 12:33 pm

ow If you want to downgrade your Baseband.

1. Download the file –> SiNfuL iPhone
2. Install Fuzzyband from Cydia
3. Download Ifunbox
4. Connect IPhone to Compuetr
4. Open Ifunbox and click on /Raw file system/Applications/Fuzzyband.app
5. Copy the ICE2-06.15.00.cert file
6. Now open Fuzzyband in Iphone
7. You can see current 6.15 and downgrade 5.13 Press downgrade, Thats it

Now it will downgrade your baseband to 5.13. Now you can enjoy installing again 4.2 or whatever….your phone is back to normal…..

aristamaster June 15, 2011, 6:29 pm

I get a error in fuzzyband saying downgrading will only work with bootloader 05.08. am i doing something wrong?

jabs January 23, 2011, 10:05 pm

a downgrade from 06.15 is enough.

Dpat1985 January 24, 2011, 11:47 pm

I also have a 3g 6.15bb no gps, sucks my blue dot wont follow me on maps……ahhhhh

Rct January 26, 2011, 8:40 am

No gps with 3G and 6.15.00 basement
Downgrade needed.

Dave January 30, 2011, 9:20 pm

I got 3g, 4.2.1, upgraded baseband to 6.15 to be able to unlock it, now unlocked and using the phone, wifi works, but no GPS, looking for solution as well to make the GPS works.

musa February 2, 2011, 1:28 am

i need the fix..will never update my 3gs after tht i learned my lesson

Levi February 15, 2011, 8:51 am

I’m having wifi issues, since I updated my baseband wifi stopped working, and it was working before I’m sure of it.

aristamaster February 23, 2011, 12:11 am

Same thing iphone 3gs 16gb and gps recieves no signal – unlocked on 6.15.00 on t mobile. and REALLY want my gps to work. Please help!

ely February 27, 2011, 10:49 am

I updated my iOS firmware to 4.2 and my baseband is now 6.15.00. I was able to jailbreak my iphone and installed ultrasn0w successfully. However, my iphone can’t still recognized my other sim cards from other networks. Can someone help me with this issue? There’s always a pop up on my iphone that no sim card is installed.. Thanks in advance. More power!

ely February 27, 2011, 11:14 am

I ran my red snow jailbreak not by “run as administrator”. I just simply open it. What will be the results or problems I will encounter on my iphone when I ran the redsnow not by “run as administrator”? I am thinking this might be the reason why my phone can’t still recognized another sim even after jailbreaking with redsnow and unlocking with ultrasnow. Please help. Thanks in advance.

nandop February 27, 2011, 10:27 pm

problemi iphone 3g baseband 6.15 ios 4.2 non va la parte telefonica…qualche soluzione???? grazie

danlvii February 28, 2011, 7:18 pm

I hope that downgrade they working on for the 3GS will also be good for the 3G.

Troy March 10, 2011, 11:05 pm

GPS issue present in mine. Anything coming up to fix it?

Aiwa614 March 19, 2011, 9:49 am

hey every one I just unlocked iphone my on 6.15.00 on tmobile. As most of you have found out the GPS does not work. well I have found a fix!!!!! here is what i did:

Step 1: Start Cydia and th
en add http://cmdshft.ipwn.me/apt/ repo in the Cydia sources.
Step 2: Once the repo has been added, simply search for “Push Doctor” app in Cydia and install it.

Step 3: Reboot your iPhone.

Step 4:Start up maps And now it works(at least it did for me)

bobbins March 17, 2011, 1:29 pm

I have 3GS 4.2.1 iOS with baseband 6.15.00 jailbroek with redsn0w and GPS does not work, wife has newer 3GS 4.2.1 iOS with fixed 5.14.xx baseband and jailbroke and unlocked it with greenpois0n untethered and her GPS works fine.

Aiwa614 March 19, 2011, 11:06 pm

Step 1: Start Cydia and th
en add http://cmdshft.ipwn.me/apt/ repo in the Cydia sources.
Step 2: Once the repo has been added, simply search for “Push Doctor” app in Cydia and install it.
Step 3: Reboot your iPhone.
Step 4:turn wifi on get location from a wifi network leave wifi on and when you go out of rang of you wifi network it will still work (on tmobile Edge) I did look at it when i was on the road I am connected on the tmobile edge not wifi I dont know why the wifi has to be on but it works
Step 5:start up maps And now it works(at least it did for me)

Someone March 21, 2011, 8:08 am

Right now i have a iPhone 3G with a baseband of 5.15.04 but I am on the
4.2.1 firmware why don’t I have the 6.15 baseband please explain I really need Tmobile as my carrier

Aiwa614 March 21, 2011, 4:17 pm

did you try to put your t-mobile sims in? what does it do. in order to get my 3g to work i had to go to baseband 06.15.00 version 4.1 (8B117)

Aiwa614 March 21, 2011, 4:20 pm

but with that baseband you have the problem with the GSP not working!! but my post earlier will walk you though on how to fix it.

aristamaster March 21, 2011, 6:45 pm

Tried push doctor – iphone 3gs 4.2.1 on 6.15.00 still no gps signal – same as before – pushdoctor installed correctly thru cydia – any more suggetions? i have a gps logger that works when it wants to which sucks but that is the only way for gps still

Aiwa614 March 21, 2011, 7:19 pm

did you turn you wifi on. that has to be on for it to work (even know it it not connected to anything) I was on the road away from my WIFI(not connected) turned it of and lost GPS..I dont know why that work but it does (for me at least) if that does not work connect to wifi network go to maps then refresh location then walk out of wifi rang and see if it still works. (keep wifi on

Aiwa614 March 21, 2011, 7:21 pm

let me know it it works for you

Aiwa614 March 21, 2011, 9:46 pm

When you go to maps does the GPS give you a ramdom location or does it not work at all? Mine gives me a random location if the wifi is off. When wifi is on I am not connected to a network

You could try is one from Cydia Add source apt.macosmovil.com
Download push fix. It when push fix is done installing it will ask you to reboot. When it boots up turn I wifi see if you can get a gps singal on or of wifi signal. Remember wifi has to be on at all times connected or not

aristamaster March 21, 2011, 7:37 pm

Nope no -go no gps signal
only thing that works so far is a blue tooth logger i got but its broken and only works when it wants to – guess ill keep using my old garmin, it ALWAYS works. guess the iphone is only good for calls and playing angry birds.

Aiwa614 March 21, 2011, 8:01 pm

Can you connet to a wifi net work? if so connet to it and see if gps works on wifi

aristamaster March 21, 2011, 8:18 pm

yep on wi fi — no gps signal

dorren77 April 7, 2011, 2:56 am

I have a i phone 3gs with baseband 6.15.00 and 4.3.1 how do I unlock it can some one help me please

dorren77 April 7, 2011, 3:51 am

I used redsn0w and i have the 6.15.00 baseband with 4.3.1 uncloked with ultrasn0w but when i try a sim card from a other carrier it does not work what can i do please help

Aiwa614 April 7, 2011, 4:40 am

What carrier are you trying to use? It has to be a GSM network (Global System for Mobile Communications) At&t and t-mobile are the only GSM networks in the US in the US

Aiwa614 April 7, 2011, 7:27 am

one thing you could try is to turn the 3G off.. on tmobile it has to be off for it to work… you can do that by going to “setting” “General” “network” turn 3g off. if that do not work for you i have know idea. do some some digging there is some forms on line talking about using the iphone on digicel. ket me turning off the 3g works for you

dorren77 April 7, 2011, 6:50 am

I am trying to use digicel a caribbean carrier what can i do please help

dorren77 April 7, 2011, 10:06 am

I was trying to restore the factory settings on i tunes so i could re install the redsn0w but now my i phone 3gs 4.3.1 is stock in recovery mood and i tunes is saying code error 1015 can any one help me please what should i do pl
ease help me

Aiwa614 April 10, 2011, 12:24 pm

I just got word there is a fix coming soon. I will post when it come out

dorren77 April 11, 2011, 6:53 am

Thanks but i fixed it i downgrade to 4.0 and then fix error 1015 with i booty and then jail break it with snowbreeze and then use ultrasnow to unlock to my carrier. thanks again

greggrif April 18, 2011, 1:16 am

iPhone 3G, used iPhone Unlocker Pro,baseband 6.15.00 jailbroken and unlocked using Ultrasn0w 0.9.6b6

GPS, unreliable…Bluetooth keeps turning off.

previous firmware 4.2.1

Aiws715 April 18, 2011, 4:55 am

Ok people a fix is on the way. One of the apple programers is on Twitter and dates daily is user name is musclenerd. Follow him and stay up to date

rami May 10, 2011, 3:08 am

Can someone please give me the steps to unlock my 3G Thank you in advance

Aiws715 May 10, 2011, 6:39 am

Get a program called blackran install on computer then do every exactly what it say to do. If you don’t it will mess up your phone. After you unlock it you can NEVER up date it with iTunes.

calnhobes June 1, 2011, 6:13 am

So is there a fix for the GPS issue for a 3GS on baseband 6.15.00 on T-Mobile?

Calnhobes August 2, 2011, 5:57 pm

Ok, I am also using Version 4.2.3. So is there any fix for the GPS issue? I have tried all the steps listed in the comments here, using push doctor but still no GPS!! Please Help!

rambo6088 June 15, 2011, 12:22 am

worked for my gps thanks aiwa

dima June 15, 2011, 1:06 am

iPhone 3G 6.15.00 GPS is not working.

Tamirbm July 30, 2011, 6:37 pm

Hellpppp usssss gps not workingggg

joe montana August 10, 2011, 3:19 pm

I have a 3G with 4.2.1 and used the youtube fix #1 from cydia and my GPS working without problems. it could be that you have to use fix # 2 or 3 you just have to try. but uninstall the previous fix to get the actual fix working.

GeNeRaLs~JeDDaH August 13, 2011, 6:05 pm

hi guys ..

i have iphone 3G with firmware 4.3.4 ..so, now it’s in recovry mode .. how i can unlock it without simcard?

note’ i am in ksa jeddah ‘

thanks with best regards,

Ringo Reyes September 11, 2011, 12:27 am

Do we have any update? Downgrade? I Touch Club!!!

IP: 3G
BB: 6.15.00
BT: 6.4

Problem: No Service & Batt Drain.

marcos October 4, 2011, 7:56 am

exactly the same here!! solution please, I need my iphone back!!

GPS November 11, 2011, 3:26 am

Fix me please !!

JM December 27, 2011, 7:08 am

me i got a 3G 6.15BB and 4.2.1 OS. I have wifi but NO Service. ANyone can help me.
I installed ultrasn0w via cydia. but to no avail i still dont have carrier connection.

OptiOnz May 7, 2012, 5:28 am

Fix me please !!…

greggrif June 18, 2012, 8:09 pm


I want to be the first to publish, the FIX.

Follow the instructions and I am doing the downgrade as I type. So far it is doing it.

Enjoy, it has been a long time coming.


greggrif June 18, 2012, 8:20 pm

My iPhone 3G, is back 🙂


Version 4.2.1(8C148)
BaseBand(Modem Firmware) 05.13.04

I even selected Multitasking and it works too.
Leave comments of success

Marcos June 19, 2012, 11:28 am

I followed all the right steps many times to downgrade and still can’t downgrade. It shows baseband 06.15.00

I tried with the 4.1_8B117_Restore and 4.2.1_8C148_Restore ,,,

what i’m missing?


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