How to update baseband on iPhone 4?

I have an iPhone 4 with a baseband problem and I know that an update will fix it.

I just need to know the process of updating the baseband

Baseband is automatically updated when you update you iPhone to the latest iOS from iTunes.
For further assistance, feel free to contact me on Facebook:
https://www.facebook.com/...6370726911

  • Will i be able to unlock iphone 3g baseband on ios 3.1.3 if i update normal mode? I have an iphone 3g jailbroken but the baseband is 6.15.00 which make it unlocked but every time i try to update from 3.1.3 to 4.2 using a custom firmware, itunes returns an error 3914.so i would like to know if i update in normal mode, will i be able to unlock it? And tell me what will be my new baseband
  • What is the latest baseband for the iPhone 4? I just want to know what is the latest baseband for the iPhone 4 and does a general restore update the baseband? Is it also possible to downgrade the baseband for an iPhone 4 and if yes, what are the problems that come with it?
  • Updating baseband on iphone 3gs? I jailbroke my phone, and everything worked fine, now i'm trying to update the baseband so I can unlock the sim. Does anyone have a good site or know how to update the baseband? I'm at 05.16.05 right now and I need to be at 06.15.00.
  • Unlock iPhone 3G iOS 4.2 Baseband 5.15.04? I have an iPhone 3G iOS 4.2 running baseband 5.15.04. Please tell me how do i unlock this to any carrier. Videos would be appreciated.