2) yes, skip the restore part. straight away run redsn0w
4) yes
5) yes
7) backup your ECID via cydia. click the "make my life easier". this is for future use.

my advice after u JB? pls be careful with wat u install thru cydia. i think some application like supreme preferences can messed up ur phone and resort u to restore the phone causing u to lose the jailbreak. and also install Open SSH in case ur cydia started to crash...some ppl have this problem where they cant run cydia because its suddenly decide to crash everytime u run it...a simple SSH into ur phone will fix this problem.

depends on what ECID u saved. is it 3.1 or 3.0? if u saved 3.0, then lucky u, u can always restore back to 3.0...

Apple is now shipping the iPhone 3GS with a new Bootrom that is not vulnerable to the 24kpwn exploit.

The iBoot-359.3.2 started to ship last week. A screenshot posted by Mathieulh shows the new version number.

MuscleNerd from the iPhone Dev-Team has confirmed that the loss of the 24kpwn exploit would mean a normal jailbreak would be impossible for the time being.

oh oh, from what @cpich3g + @Mathieulh have found so far, a normal untethered JB may be in jeopardy in brand new 3GS units

For the time being we would suggest locating old stock or refurbished units. Hopefully, the dev teams will be able to find another exploit for the new bootrom.
via iClarified

I just do a full restore to 3.1.2 and then jb using blackra1n

you can even JB a 3.1.2 now. just restore/update and jailbreak.
blackra1n works on 3.1.2. yes.
blackra1n should be utilising the current 24k exploit as well and thus, not working wit the new bootrom.

How to check bootrom on my phone?

I think more than likely any new iPhone stocks after the next few batches would be updated with the new bootrom

People dont understand

Blackra1n injects 24kpwn payload to 3G/3GS/iPod 2G/ipod 1G  + lib_usb exploit , making it un tethereded  jailbreak. Now for the new Touch 3G , and 3GS , apple has fixed the known 24kpwn exploit - which means that its sill possible to jailbreak. It has to be tethered - meaning that if your iPhone hangs in the middle of a meeting or if you need to reboot - you can't - you'll have to use a PC to assist the iPhone to do a reboot.

There are two kinds of exploit. an Iboot exploit allows jailbreak of the file system but then you'll still have to find a boot ROM exploit to disable apple check on the kernel and file system so that the device can still reboot.

Hi chocobo2988...

I'm using Maxis 3GS 32G 3.1.2 blackrain JB phone... I had the same issues when i chg my sim frm my 3g to 3gs. Wat u need to do is to reset network. It will resolve the connection issue (at least it did resolve mine). Hope it helps. 

From your iphone goto > Setting > General > Reset > Reset Network Setting 

if not mistaken....3g and egde need to be on if u want to used the internet....

hi all, im new to iphone.
need ur advice..
i have iphone 3g 16gb(black) model number mb469x.. so now, i want to update my firmware to the latest 1 thru itunes.. can i?? will i lost my unlock version?

oh ic....
so how can i down grade to version 3.0??

hey guys...since firmware 3.xx came out for so long,
wanna ask here izit save to upgrade + JB now??

any power consumption, etc etc prob??

u won't find that option if you have Carrier 5.0 in your carrier setting.