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Ok, so I've successfully downgraded to 3.1.3, but my baseband is still 05.13.04. If I jailbreak it, will I be able to upgrade to jailbroken iOS4 even with the baseband being 05.13.04?

Baseband has nothing to do with jailbreaking, only unlocking to another carrier.
 
Baseband has nothing to do with jailbreaking, only unlocking to another carrier.

Thanks for the clarification. Should I downgrade to 3.1.2 before trying to go to jailbroken iOS4 or should I be alright from 3.1.3 jailbroken?
 
No your wrong, that's your baseband, not your bootrom.

How am I wrong when I was replying to a post about 05.13.04 baseband?

Thanks for the clarification. Should I downgrade to 3.1.2 before trying to go to jailbroken iOS4 or should I be alright from 3.1.3 jailbroken?

You can try it with 3.1.3 but IIRC, 3.1.3 doesn't allow you to install unsigned firmware. You can try it and see if it works but I went to 3.1.2 to be safe.

However, I don't think you can downgrade to 3.1.2 again unless you had Cydia back up your SHSH.

By the way, I went back to 3.1.3. MyWi and a few other JB apps don't work in 4.0 yet so it may not be worth the trouble.
 
Why do people do this? Why do they do something they have no understanding on what they are doing and then come here and cry and ask for help when things don't work.

WAIT FOR DEV TEAM next time.
 
Why do people do this? Why do they do something they have no understanding on what they are doing and then come here and cry and ask for help when things don't work.

WAIT FOR DEV TEAM next time.

Who's crying? Pardon some of us for being excited and wanting to do things before a dev team release that is going to take a month to come out. Looks to me like YOU'RE the one crying. Don't read the thread if you don't want to help.

On another note, I was not able to downgrade from 3.1.3 to 3.1.2 last night. Redsn0w kept freezing at "Installing Activation Bundles". Any thoughts or fixes? (I did have Cydia back up my SHSH).

Thanks to all those actually helping and not crying about people asking questions on a FORUM!
 
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