Unlock iPhone 4, iPhone 4 Unlock Guides

Unlock iPhone 4

iPhone 4 Unlock is out now. All guides to unlock iPhone 4 are listed below. UltraSn0w 1.0-1 is the first ever iPhone 4 baseband unlock released by the Dev-Team. To unlock iPhone 4 baseband to use SIM from any carrier, follow the guides linked below.


How to Unlock iPhone 4

Unlock iPhone 4 Baseband 01.59.00

If your iPhone has baseband 01.59.00, follow the guide below to unlock iPhone 4:

Unlock iPhone 4 Baseband 02.10.07

Unlock iPhone 4 Baseband 03.10.01

Unlock iPhone 4 Baseband 04.10.01

Unlock iPhone 4 Baseband 04.11.08

(Not Unlockable ATM)

We’ll update this post as soon as a new unlocking tool for the current or any new baseband is out. Stay Tuned!

How to Jailbreak iPhone 4

You can jailbreak iPhone 4 running iOS 4.0.1 or iOS 4.0 using JailbreakMe guide linked below:

You can follow us on Twitter, Join us at Facebook, and also Subscribed to RSS Feed to receive latest updates.

182 comments… add one
Jumpuy July 5, 2010, 3:19 pm

Thanks a lot devteam for you efforts..
can’t wait for the iPhone 4 unlock

Dunromin July 6, 2010, 9:27 pm

I have iphone 3g os4
Baseband 05.13.04
installed ultrasnow through clydia but still unable to unlock (network tesco 02)
any thoughts

iPhoneHeat July 7, 2010, 12:24 am

disable 3G first..
install ultraSn0w
turn air plane mode on/off

Dunromin July 7, 2010, 10:54 pm

iPhoneHeat 7 July 2010 at 12:24 am #
disable 3G first..
install ultraSn0w
turn air plane mode on/off

I have done that, all i get waiting for activation then no service. at what stage do you switch back on 3g?
also I am using the sim from my 3gs in this 3g.this shouls make no difference should it.
Thanks for the reply though.

Pumpki July 7, 2010, 8:08 pm

great going dev-team
this way we shall have iphone 4 unlock in no time 😛

Andre July 12, 2010, 12:59 pm


I have a 3GS on 3.1.2 with baseband 05.11.07 and bootrom 359.3

I am confused with all of the options for os 4.0. Could someone suggest to me the best option, should I just wait for a jailbreak to be released (as I don’t need my phone to be unlocked) or should I upgrade with a custom ipsw ?

Many Thanks

iPhoneHeat July 13, 2010, 1:13 am

wait for the upcoming jailbreak

Andre July 13, 2010, 12:20 pm

Thankyou for your reply, but why should I wait will I lose something if I upgrade with the custom firmware. I thought it would give me the new os and keep my bootrom and baseband the same ?

iPhoneHeat July 14, 2010, 1:09 am

1. firmware does NOT update bootrom.
2. It updates baseband + OS .. baseband update >> Locks iPhone But you don’t need an unlock. right?
3. You need an iPhone jailbreak. @ 3.1.2 you’re jailbroken. CFW sometimes brings 16xx error and you’ve to restore official OS 4.0 if you don’t have 3.1.2 SHSH blobs saved.

If you have SHSH blobs for 3.1.2 go ahead and try the custom firmware 4.0… anything goes wrong downgrade to 3.1.2 and wait for the Spirit update for 4.0

[email protected] June 7, 2012, 9:31 pm

I have a iphone 4 version5.1,I don’t know how to unlock,my baseband number is 04.12.01

bboy July 12, 2010, 3:11 pm

Without u guys were will we be.. Keep up the good work n pls try n eat sth

sly8 July 14, 2010, 3:58 am

I have a iphone 3gs 3.0 jailbroken, and unlocked.. can i update this to ios 4.0 and jailbreak and unlock it again?

iPhoneHeat July 14, 2010, 3:19 pm

Do you have SHSH blobs saved for 3.1.2 or 3.1.3?

Bannana Joe July 18, 2010, 6:08 am

Man, once your get this working PLEASE leave an paypal address for invite you some pizza and stuff for your efforts, i’m not a rich man but I’m grateful with the people that deserves my recognition and cheers, godspeed and we are all expecting the conclusion of this epic battle against the chains of suppression called ‘locked device’.

dsmith9677 July 20, 2010, 3:20 am

will i ever be able to unlock my iphone 3gs new bootram with ios4?

maddy July 27, 2010, 1:16 am

I have an iphone 3gs which I bought in the US. I moved to Germany a couple weeks ago and can’t use it anymore. Is there a way to jailbreak it?
I used the regular AT&T iphone sim card in the States, so there is no jailbreak on the phone yet.
I have the firmware 4.01 05.13.04

iPhoneHeat July 27, 2010, 1:38 am

Spirit jailbreak will be out in a few days now.. but for that your iPhone must be activated.. You can activate iPhone without Official SIM card. Here is how to: http://www.iphoneheat.com/2010/07/how-to-activate-iphone-without-the-original-sim-iphone-4-3gs-3g/

Mara August 18, 2010, 7:20 pm

I’m from Italy.I’ve bought an Iphone 4 IOS 4.0.1 in the US. I’ve done Jailbreake with Jailbreakme but, Cydia is installed but when i try to search repo666.ultrasnow.com appear a message like failure, and I can’t do nothing else.
Can you help me in anyway? Sorry for my english…Thanks a lot…

iPodalot September 12, 2010, 2:11 am

Make sure you have internet connection to Cydia and that the ultrasn0w unlock is compatible with 4.0.1.

pinito4529 October 31, 2010, 10:40 am

i just jailbreaka my new iphone 4 with pwanage tool so i could unlock it, but maybe i did something wrong, and it upgraded the baseband to 02.10.04 and now ultrasnow doesn’t work. any help?

or any ETA for this baseband version to be unlockable?

G November 5, 2010, 3:48 am

I have same problem too . and I have been tried about that so much..

Tarique December 2, 2010, 3:49 pm

hi am from malawi, and i bought a new iphone 4 and i jailbreak ed it to 4.1 with bb 02.10.04 and when i use ultrasn0w 1.2 it shows no service at the corner so is there something i should do to bring back signal?

jones December 12, 2010, 5:32 pm

cant wait for 03.10.01 bb unlock. its been 3 months that i can’t use my iPhone =(

kenz0 February 5, 2011, 5:36 pm

is there a clean jb and unlock for iPhone 3gs 4.1 bb 5.14 with new bootrom?

iPhoneHeat February 5, 2011, 10:34 pm

Yes, there’s a jailbreak.. checkout the jailbreak iPhone category. However, Unlock is not out yet!

partovei February 8, 2011, 6:12 pm

What time is the result?
unlock iphone 4 ios 4.2.1 bb 3.10.1

skj February 17, 2011, 10:02 pm

please get the unlock for iphone 4 4.2.1 bb 3.10.01 fast…. already been three months of waiting…..
also please help me as the battery for the phone drains out pretty fast after jailbreaking it and also facetime has disappeared ???

Nuno February 18, 2011, 2:55 am

I have an iPhone 4, basband 03.10.01; I bought it in the US, so it is AT&T blocked. When can I expect to unlock it?

Ian March 1, 2011, 1:22 am

I have I phone 4 02.10.04. Is it able to unlock now?

daidot March 9, 2011, 6:51 am

I don’t think iphone 4 can be unlocked any more. I prefer buying other brand. forget iphone dude, it’s not worthed.

hakkimkhorn March 16, 2011, 7:50 pm

i hope my i phone4 02.10.04 can unlock sooon. i’m wait……………………………………………!

mashiur March 8, 2011, 8:29 pm

hay still i’m waiting for iphone 4 baseband 03.10.01 to unlocked. how long?

jackcalis March 12, 2011, 9:01 pm

dear sir,

i have iphone4 jailbreaked and insstalled cydia with baseband 02.10.04. now what should i do plss plss help me . [email protected]

hakkimkhorn March 16, 2011, 7:50 pm

I’m waiting!

bigtitslover March 19, 2011, 5:51 am

Damn, still no news the iphone 4 unlocking? What about for version 02.10.04 ? Start to change the name “hackers” to something else.

kpayal March 24, 2011, 4:20 pm

Pls let me know when I can unlock my Iphone 4 firm ware 4.2.1 and baseband 3.10.01

Aneeq Sohaib April 16, 2011, 10:28 pm

Unlock IPhone 4 Baseband 02.10.07
(Not Unlockable ATM)
Unlock IPhone 4 Baseband 03.10.01
(Not Unlockable ATM)

when will the unlock for the above mentioned baseband’s will come?

skj April 17, 2011, 11:59 pm

not soon…. infact it is also possible it might never come……

zohaib May 11, 2011, 7:18 am

any news on baseband 03.10.01?? so i can use my iphone 🙁 … cant wait for the unlock…

01.59.00 June 5, 2011, 6:41 pm

No, sorry, only for bb 01.59.00 at the moment.

MaxVergio June 8, 2011, 10:02 pm

You might want to try a gevey sim until a dev team unlock is finally out…

heklao June 19, 2011, 2:26 am

Pouvez vous me dire si on peu desimlocker iphone 4 4.3.2 bb 4.10.1?

honey2362 June 19, 2011, 11:13 am

i like to unlock my iphone4 3g, version 4.2.1, modem firmware 03.10.01…can u help me its my first time to do it and im very confused, thank u very much.

Ardit Palla June 24, 2011, 2:43 am

hi…..i have a problem with my iphone4 with mi carrier (Sim) because it is not available ….i have made Jailbreak 4.3.3 but i have the same problem. How can i make my iPhone 4 to work with all SIM..because my work only with AMC-Albania

yetix July 10, 2011, 12:45 am

I have a tethered iphone 4 with 4.2.1 and i will remove that and make untethered jailbreak on it. how can i do?

deke August 12, 2011, 10:04 am

i have a iphone4 on 4.2.1and baseband 03.10.01… is there a way to unlock it for tmobile…

chris August 15, 2011, 7:25 pm

no deke there is no unlocking solution(software) available for the iphone 4 on your baseband. however you might want to try out other hardware unlocks like the gevey sim cards that are in the market. even those would not work when ios 5 comes in. so i would suggest you get urself a factory unlocked iphone, as it would give u peace of mind!! cheers:)

Akif Shamim September 9, 2011, 3:08 pm

Pls let me know when I can unlock my Iphone 4 firm ware 4.2.1 and baseband 3.10.01

perry November 8, 2011, 10:54 pm

Hi there , any one know when the unlock for baseband 04.11.08 comes?

abhishek December 25, 2011, 12:19 pm

when iphone 4g baseband-4.11.08 jailbreak and ultrasnow has come

shyam gupta December 28, 2011, 2:33 pm

hello,..i have iphone 3g version 3.1.2 .,
i have downloaded IOS 4.2.1 For IPhone 3G, from your site.,
now what should i do.. please do reply..
thank you

iPhoneHeat December 28, 2011, 3:26 pm

do u depend on the Untrasn0w unlock?

parmjit January 2, 2012, 10:57 pm

how to unlock iphone 4 version 5.0with roger 11

parmjit January 2, 2012, 10:58 pm

how 2 unlock iphone 4 version 5.0 with roger 11

marjandolatnia January 14, 2012, 8:03 am

Can you cansel &remov from my. Account
mobil ,& only. I can use

oorozc January 20, 2012, 11:28 am

once i jail break my iphone .. can i un-jail break it back to the original firmware….

oorozc January 20, 2012, 11:33 am

once i jailbreak it can i also or a way to put it back like if i didnt jailbreak it.. how does this work??? once i jail break ti im screwed or what??

Rikzyoyo January 21, 2012, 1:02 pm

Can’t wait unlock iphone 4 baseband 04.11.08

ahmed salah April 24, 2012, 6:43 pm

now u can unlock your iphone 4 and 4s using sam and sampref …. for more information contact me on my e-mail([email protected]) or ([email protected])

Kiefer April 26, 2012, 8:19 pm

This update will work

rosie May 15, 2012, 2:09 am

hi as its the first tym can someone help me plzzz. iam getting confused as to wot i need to do to jailbreak my iphone. i have the iphone 4 on version 5.1.1(9b206) firmware 04.12.01. i dont knw wot i need from start to finish or wot are shsh blog are and wer to get them from thanks

zavera June 30, 2012, 11:10 am

Thanx for useful information it really works to unlock my iphone

aung nyein chan July 1, 2012, 1:47 pm

I have iphone 4s (5.1.1) and it’s locked by softbank(JAPAN).
Can it be unlock?

abby July 10, 2012, 3:07 am

hey, i have an iphone 4 and i went to romania but my iphone wouldnt work there so looked online and found this website unlockatt.com and placed an order with them. they emailed me back within 24 hours saying that its unlocked and all i had to do was connect it to itunes and restore it. im so happy it worked and is unlocked

seemsto July 27, 2012, 9:04 pm

Hi every one, I would like to unlock my iphone 4 that work’s with SFR netwok but I want my iphone to use all networks !!! is it possible please waiting for your response pls?

PANKAJ September 7, 2012, 10:25 am

Can’t wait unlock iphone 4 baseband 04.11.08. PLZ SEND ME HOW TO UNOCK PLZ PLZ

Nicolas L September 23, 2012, 7:52 am

Hi DEV team,

I have iphone4 GSM in MC318LL\A, but unfortunately I upgraded IOS4 jailbreak to IOS6 through shift+restore apple firmware, but its locked saying cannot use SIM card, baseband right now is 04.12.02, perhaps its ungraded by IOS6 as well higher than 04.12.01 of IOS5.1.1.

could you help me please, how can I downgrade it to 5.1.1 unlocking for service?

(I have SHSH backup and IOS5.1.1 firmware handy)

tirthraj joshi October 1, 2012, 8:26 am

i have a iphone but i don’t uderstand to how to instal application and games too. And what is it jailbreak i could’t understand. plz could we help me ?

sulaimon October 4, 2012, 3:20 pm

thank you all

charles January 13, 2013, 7:08 pm


gome February 9, 2013, 11:55 pm


Sagar February 22, 2013, 8:16 am

Modern Firmware: 04.12.05.
Please help to unlock my iPhone 4

Tiby March 6, 2013, 1:48 pm

Modern Firmware: 04.12.05.
Please help to unlock my iPhone 4 i have IOS 6.1.2. I am from Romania, or please help me downgrade, i try everthing but still don’t work, i have error 1601 , i follow the instruction, i use ireb etc……..

Leave a Comment