Problem Jailbreaking my iphone 3G w/ 4.2.1 firmware

The last time I jailbreaked was when I had the 1st generation iTouch. yes i know its a LONG time. hahaha. when I purchased the iphone 3G, I didnt bother since I didnt really need to. But now I am because I want to use MyWi. well not having any luck doing it, hopefully someone can help me or know what's wrong and give me some tips and idea to try....

I have the iPhone 3G w/ 4.2.1 firmware. I want to Jailbreak my phone w/ Cydia installed. (not looking to unlock the iphone or installing the baseband...) Main reason for jailbreaking the iphone is to install MyWi. anyway, I followed the instruction from iClarified http://www.iclarified.com/entry/index.php?enid=12949. I have tried over and over and over again, It would sit on this screen (below pic) for a long time.



I tried again and again, and was still doing the same thing.. either at one blue bar, or two.. at one point, It was half way... My Iphone does have the HardDrive Pic with the word starting with... "Downloading...." (sorry forgot what the rest said).

I did restore my iphone as suggested and put all my stuf back into my iphone (from backup copy).

any help or tips will be deeply appreciated. TIA

johnlo

maturola said:

You are not getting any errors or anything to actually give you any intelligent guess of what is going wrong. All i can tell you is do the "normal" step to clean up.

Try another machine,
Try Another USB cable
Try a different USB port
reboot the Computer, and the phone
Try removing the IPSW and re-downloading
Make sure you got the right IPSW for your phone (3G)
Make sure you got the lastest itunes
DFU restore of the phone, set as new (do not restore from backup)

Click to expand...

Thx for responsing. no error messages at all. it just sit on that screen.. i will give wat you mention a try tonight. actually thought about doing what you said too, but it was getting late last night, didnt want to spend all night working on it.

when i was restoring from backup, it was in the begnining, before i executable the redsn0w application. and yes I did Run as Admin (using win7 64Bit).

Ah ok. thx guys. I wont restore the back-up, just create a new then. now after I jailbreaked, can i use the back-up? or better start fresh from the beginning?

No ice please said:

Don't restore from a backup, and also make sure just Cydia is going to install. I would always get errors when I would tick enable backgrounds, multi tasking, or battery percentage.

Click to expand...

am only installing Cydia. not interested all the other feature. 3G model is slow enough.. dont need it any slower. thx!~!!!

ok. finally got it all jailbreak. the problem still continue after trying everything you all said. did a quick search after playing with my son and here's my result.

running redsn0w open up task manager set affinity and uncheck cpu 0, cpu 2, cpu 3. only checked of cpu 1

so for those that might have the same problem i do.. this is what i did.

i'm using win7 64 bit