cant go into dfu mode

[Chaka1988]

Hey guys

I have an iphone 3g 8gb on 4.2.1. I have tried to jailbreak it via redsn0w but for some reason the iphone cant enter dfu mode. I press the home button and the sleep button at the same time but the iphone doesnt restart for some reason. both buttons work perfectly fine when the phone is on.
what could be the problem?

 

[labman]

are you fallowing this? http://www.youtube.com/watch?v=nN3twIBawy8 or http://www.youtube.com/watch?v=ofpinyGlQ8I&feature=related

 

[ninjaw95]

thats happened to me a lot lol, i used blackra1n/limera1n to put it into DFU mode

 

[Chaka1988]

are you fallowing this? http://www.youtube.com/watch?v=nN3twIBawy8 or http://www.youtube.com/watch?v=ofpinyGlQ8I&feature=related

Yea i followed that. I was jailbreaking phones for years now but this is the first time I cant get into DFU mode when all buttons work normally when the iphone is on.

Just tried limera1n. the iphone restarts after pressim home and sleep buttons but it keeps saying "release sleep button" and nothing happens

 

[hizzaah]

I had a problem as well the last time I tried to jailbreak. Wouldn't enter dfu mode.

Turns out the Apple Recovery (iBoot) USB Driver was missing.

Repaired the Apple Mobile Device Support installer package, and now all is good