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Question About Baseband?

King Apple

King Apple

macrumors regular
Original poster
Mar 17, 2010
191
0
I'm trying to buy an Unlocked iPhone 3GS on Ebay. My question is: Which is the best baseband? Any iPhone that i buy will need to have Firmware: 4.3.3
The thing I don't understand is which baseband is the best?
For example: There are iPhones that are on Firmware: 4.3.3, and have basebands of:
05.16.02
06.15.00
05.13.04
05.11.07

What's the difference?
What do these numbers mean? Does baseband even matter?

I'm a noob to all this, so I'd really appreciate someone explaining this to me.

I will primarily be using this iphone in the Caribbean.
 
Last edited:
On 3G / 3GS phones:

Baseband 05.13 or below can be software unlock with Ultrasnow.

Baseband 5.14 and above requires the need to install the hacked 6.15 Ipad baseband to work with Ultrasnow. There are known issues (google) when using the hack Ipad baseband, like GPS no longer working, can't restore with the official firmware anymore due to the Ipad baseband and Apple will know that you JB (no warranty) your phone since you can't remove 6.15 baseband.
 
so what specific basebands do you recommend?
i'm still confused...

are you saying that these basebands are the best?
05.13.04
05.11.07

wats the difference between those and 06.15.00??
 
Yes. I would recommend getting one with baseband 5.13 or below. Which baseband you get doesn't really matter since they are supported with Ultrasnow.
 
Alright so the iPhone i will be buying from ebay will be jailbroken and unlocked running on ios: 4.3.3

the basebands that you reccomend are as follows:
05.16.02
05.15.04
05.13.04
05.11.07
05.12.01

i'm still a little confused, correct this list if i'm wrong please.

And i should always stay away from 06.15.00 correct?
 
05.13.04 and lower can be unlocked. It's that simple. If you have to get a phone with ipad baseband of 6.15, fine that can be unlocked too but you lose the gps. Match the numbers. Any number in between is no damn good.
 
alright that cleared things up, thanks!

and this is the same info for both the 3G and 3GS models?
 
King Apple said:
I'm trying to buy an Unlocked iPhone 3GS on Ebay. My question is: Which is the best baseband? Any iPhone that i buy will need to have Firmware: 4.3.3
The thing I don't understand is which baseband is the best?
For example: There are iPhones that are on Firmware: 4.3.3, and have basebands of:
05.16.02
06.15.00
05.13.04
05.11.07

What's the difference?
What do these numbers mean? Does baseband even matter?

I'm a noob to all this, so I'd really appreciate someone explaining this to me.

I will primarily be using this iphone in the Caribbean.
Click to expand...

5.16.02 cannot be unlocked, 6.15.00 is the iPad baseband and that's just a mess because it kills your GPS and because you have to restore/update with custom firmware no matter what.

5.13.04 and 5.11.07 are your best bet because they're a simple unlock. Just make sure that if you ever need to restore or update, you do so with a custom firmware otherwise you'll update the baseband and kill your unlock.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

05.13.04
05.11.07
05.12.01
These are the ones you need
Stay away from 6.15.00 at any cost.
 
is all this information the same if i want to buy an iphone 4 instead of an iphone 3gs?
 
alright, can you answer this.

my brother has an iphone 4, jailbroken unthethered on 4.3.3 .
he wants to unlock it with ultrasn0w..
is that the only baseband that is compatible?
 
King Apple said:
alright, can you answer this.

my brother has an iphone 4, jailbroken unthethered on 4.3.3 .
he wants to unlock it with ultrasn0w..
is that the only baseband that is compatible?
Click to expand...

Yes it is the only one that is compatible. If he's in a different one with the iPhone 4 he can buy the gevey sim and unlock with that. Search here and you can find a lot of threads about it.
 
alright thanks.

So if i want to unlock a phone without a gevey sim, the best software to use is ultrasn0w?

are there other softwares like ultrasn0w?
 
Ok so please verify this information.

If i want to unlock an iPhone 3GS with ultrasn0w, these are the ONLY basebands i should use:
05.11.07
05.12.01
05.13.04

If I want to unlock an iPhone 4 with ultrasn0w, this is the ONLY baseband i should use:
1.59.00


I'f i'm missing something please help me.
 
King Apple said:
Ok so please verify this information.

If i want to unlock an iPhone 3GS with ultrasn0w, these are the ONLY basebands i should use:
05.11.07
05.12.01
05.13.04

If I want to unlock an iPhone 4 with ultrasn0w, this is the ONLY baseband i should use:
1.59.00


I'f i'm missing something please help me.
Click to expand...
Exactly :)
And if u get device with those bb make sure u always preserve the basebands while updating :)
 
Abs_p said:
Exactly :)
And if u get device with those bb make sure u always preserve the basebands while updating :)
Click to expand...

and the best way to preserve the baseband is with tinyumbrella?
i have a mac.

what do you reccomend if you are trying to preserve the baseband but need to update to the latest ios firmware?
 
Another question:

Say I buy a 16 GB iPhone 3gs Unlocked and Jailbroken on Ebay.
The ios: 4.3.3
modem firmware: 05.16.02

OR

Say i buy a 16GB iphone 3gs unlocked and jailbroken on ebay.
ios: 4.3.3
modem firmware:5.15.04

is that good?

if the iphone is alreadly unlocked, does the baseband even matter?
 
Last edited:
King Apple said:
Another question:

Say I buy a 16 GB iPhone 3gs Unlocked and Jailbroken on Ebay.
The ios: 4.3.3
modem firmware: 05.16.02

OR

Say i buy a 16GB iphone 3gs unlocked and jailbroken on ebay.
ios: 4.3.3
modem firmware:5.15.04

is that good?

if the iphone is alreadly unlocked, does the baseband even matter?
Click to expand...

I already answered this twice in the thread you stated the answer is the same no unlock 05.15.04 or 05.16.02. However maybe you can find somebody to give you miss information that you can if you keep asking. :rolleyes: if you read this thread all questions are answered. I also provided links that can check firmware and basebands. starting multiple threads asking the sake question isn't going to help you.

https://forums.macrumors.com/threads/1188426/
 
Last edited:
King Apple said:
Another question:

Say I buy a 16 GB iPhone 3gs Unlocked and Jailbroken on Ebay.
The ios: 4.3.3
modem firmware: 05.16.02

OR

Say i buy a 16GB iphone 3gs unlocked and jailbroken on ebay.
ios: 4.3.3
modem firmware:5.15.04

is that good?

if the iphone is alreadly unlocked, does the baseband even matter?
Click to expand...

There are 3 types of unlock : 1) factory hardware unlock (3G, 3GS and IP4), 2) JB & Ultrasnow software unlock (3G, 3GS and IP4) and 3) Gevey sim (IP4 only)

If it's a factory hardware unlock (from Apple), the phone will forever be unlock and baseband does not matter.

If it's a software unlock, what baseband you have matters because it needs to be supported by the software Ultrasnow.
 
King Apple said:
Ok so please verify this information.

If i want to unlock an iPhone 3GS with ultrasn0w, these are the ONLY basebands i should use:
05.11.07
05.12.01
05.13.04

If I want to unlock an iPhone 4 with ultrasn0w, this is the ONLY baseband i should use:
1.59.00


I'f i'm missing something please help me.
Click to expand...

Why are you asking all your questions again and again? It makes no difference if you combine your questions and put them into one post.

Go get an Android.
 
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