Comments on: iPhone DevTeam successfully downgrades iPhone 3G baseband.

By: suresh

suresh — Mon, 08 Jun 2009 18:51:32 +0000

Check when your phone was manufactured by looking at the 11 digit serial number located on the lower back of the phone. The first two digits are the factory ID (where it came from) and the next three are date information. The rest of the numbers are irrelevant for our purposes of downgrading.
An example would be xx832xxxxxx. The 8 represents the year 2008. This is the first good sign for your iPhone 3G, meaning that its got a higher chance of having a bootloader version 5.08. The next two numbers is the week it was created.
If you have lower than week 36, you should be fine. Week 36 is the end of September. Thanks to those who have been in touch, it seems some of you who have iPhone 3Gs from week 35 also have bootloader 5.09 which renders it non-downgradable. We recommend checking it properly using the method below or with 3G Fuzzyband Downgrader (below).
Optional: If youâ€™re really unsure, you can use a tool to confirm your bootloader version. Download a tool called Minicom via Cydia (you need to have a jailbroken iPhone of course), then follow the simple instructions here for using Minicom

By: saminee

saminee — Tue, 05 May 2009 05:09:52 +0000

well yellowsnow works well with out that whole turbo sim bull…but the new baseband makes it impossible to keep the phone unlocked. if i downgrade the baseband can i still run yellowsnow on a 2.2.1 version?

By: jignesh

jignesh — Tue, 07 Apr 2009 15:22:56 +0000

unlock i phone 3g without turbo sim

By: Braden

Braden — Mon, 28 Jul 2008 14:45:50 +0000

Definitely!

By: Braden

Braden — Mon, 28 Jul 2008 14:44:53 +0000

Thank you. :smile:

By: Jash Sayani

Jash Sayani — Mon, 28 Jul 2008 09:07:46 +0000

See: http://theifoneblog.blogspot.com/2008/07/installer-4-coming-soon.html

By: Jash Sayani

Jash Sayani — Mon, 28 Jul 2008 09:07:10 +0000

Nice for 3G guys !!! :smile:

By: jazir

jazir — Mon, 28 Jul 2008 08:14:25 +0000

hey braden i actually dont believe i welcomed you. glad to see u on the iphonefreakz team bro

By: iphoneinator

iphoneinator — Mon, 28 Jul 2008 02:00:33 +0000

it says “allows applications to run in background”.. Besides continuous wifi connection != a background running app cuz if it did it would still run when closed.

By: Braden

Braden — Mon, 28 Jul 2008 01:42:22 +0000

Wait, I think I was correct. Insomnia’s google code page says:
“Insomnia is an iPhone native application that, when enabled, will prevent the iPhone from sleeping, thus overriding its default behaviour. This allows background applications to continue to run and WiFi to work long after the screen has been switched off. Insomnia is useful if you are using an IM or IRC client that you wish to stay connected to receive messages while the screen is off.”

When the iPhone turns the display off after a period of time, the iPhone goes to sleep. When the iPhone goes to sleep, the Wi-Fi gets disconnected temporarily, until the iPhone is woken back up. Then the phone connects to the Wi-Fi again. Insomnia prevents the iPhone from sleeping (wifi gets disconnected) when the display turns off. This allows you to still be downloading/IMing/whatever even when the display is off.
It does not make applications run in the background when you exit out of them. That is in each applications individual coding.