unlocking iPhone 3G to use overseas

[gugy]

Hi, I am planning to unlocked my iPhone 3G to use abroad. I will receive my 4S this week and I would like to keep my old iPhone to make local calls while traveling especially in Brazil. So get a local carrier SIM card.

Does anybody know how is the best process to achieve that?
regards!

 

[Crystal-RX]

Hi, I am planning to unlocked my iPhone 3G to use abroad. I will receive my 4S this week and I would like to keep my old iPhone to make local calls while traveling especially in Brazil. So get a local carrier SIM card.

Does anybody know how is the best process to achieve that?
regards!

What is the firmware version, baseband and bootloader on your 3G phone?

 

[gugy]

What is the firmware version, baseband and bootloader on your 3G phone?

oh,
sorry for my ignorance but how can I see that kind of info?
What I can tell you is this:
the software version is IOS 4.2.1
and I have never jailbreak it. Always use under Apple's software.

 

[Crystal-RX]

oh,
sorry for my ignorance but how can I see that kind of info?
What I can tell you is this:
the software version is IOS 4.2.1
and I have never jailbreak it. Always use under Apple's software.

If your phone has 4.2.1 and never jailbreak, then I believe the baseband is 05.15. You can find out this info as follow;

Setting, General, About

Look at the modem firmware at the bottom and see what is it?

If it is 05.15, then it can't be unlocked with Ultrasn0w. However, you can find out if it can be downgradable by running Tiny Umbrella and see what bootloader you have on your phone. If you are lucky enough to have 05.08 bootloader, then you can downgrade your baseband to 05.13 and you can unlock it with Ultrasn0w. If your Iphone has bootloader higher than 05.08, then the only way to unlock it is to install Ipad baseband.

 

[gugy]

If your phone has 4.2.1 and never jailbreak, then I believe the baseband is 05.15. You can find out this info as follow;

Setting, General, About

Look at the modem firmware at the bottom and see what is it?

If it is 05.15, then it can't be unlocked with Ultrasn0w. However, you can find out if it can be downgradable by running Tiny Umbrella and see what bootloader you have on your phone. If you are lucky enough to have 05.08 bootloader, then you can downgrade your baseband to 05.13 and you can unlock it with Ultrasn0w. If your Iphone has bootloader higher than 05.08, then the only way to unlock it is to install Ipad baseband.

oh here it is:
firmware 05.14.04
I could not find the baseband and boot loader info.
Thanks

 

[Crystal-RX]

oh here it is:
firmware 05.14.04
I could not find the baseband and boot loader info.
Thanks

05.14.04 is your baseband (Modem firmware). Your firmware version is 4.2.1 which you indicate above.

Do you have PC or Mac? I can send you the tutorial on how to jailbreak it. From there you can install Fuzzyband from Cydia, run it and it will give you bootloader info.

 

[gugy]

05.14.04 is your baseband (Modem firmware). Your firmware version is 4.2.1 which you indicate above.

Do you have PC or Mac? I can send you the tutorial on how to jailbreak it. From there you can install Fuzzyband from Cydia, run it and it will give you bootloader info.

Thanks man, I have a Mac.
I appreciate your help!

 

[Crystal-RX]

Thanks man, I have a Mac.
I appreciate your help!

Here you go;

http://iclarified.com/entry/index.php?enid=12947

 

[gugy]

Here you go;

http://iclarified.com/entry/index.php?enid=12947

Thanks!