Please help me with baseband preserving

[Iphone4youu]

Hi there,
There is a guy at my local mall who says he can do this for $20. Personally I don't want to waste $20 o something that's free.

Here's the situation:
I am a tmobile user. I have an iPhone 4 running 4.0.1 running 01.59 with Ultrasn0w.
As you may know, the proximity sensors are messed up on firmwares below 4.1 so I want to upgrade to a higher firmware without upgrading my baseband AND I also want my phone unlocked.

Please if you can help me, leave a detailed response below with what I should do.

Thanks in advance!

 

[Surely]

Here's some help: change your thread title so people will know what you want.

 

[Iphone4youu]

Here's some help: change your thread title so people will know what you want.

I have no idea how to even respond to that..

 

[Surely]

I have no idea how to even respond to that..

Clearly you do....you changed your thread title.

Imagine everyone who needed help just calling their threads "Please Help Me". In order to know what each thread was about, you would have to click on them.

If you name your thread something that has to do with your problem, then you are apt to get proper help. It's especially helpful in Forum Spy.

 

[Iphone4youu]

Clearly you do....you changed your thread title.

Imagine everyone who needed help just calling their threads "Please Help Me". In order to know what each thread was about, you would have to click on them.

If you name your thread something that has to do with your problem, then you are apt to get proper help. It's especially helpful in Forum Spy.

Okay

 

[Applejuiced]

You have to restore to custom 4.3.2 Ipsw in order to save your unlockable baseband.
Use pwnage tool.