iPhone 4G stuck on DFU mode & black screen, tried everything. :S

[chir0n]

Ok my sister let me jailbreak her iphone 4 and at first i checked jailbreakme.com, it gave me instructions to use sn0wbreeze and download a 4.3.3 firmware. So i did. Afterwards, i used sn0wbreeze to mod the 4.3.3 firmware and then I used iTunes to restore. I kept having errors 3194, 1600 etc and then i searched until i found tiny umbrella and gave it a try. I forgot to pay close attention to a tutorial that says you have to click on "Save SHSH" *twice*, i only did press it once, is that a mistake?
Then i started TSS server, fired up iTunes and woh-la, no more errors. However, the iphone just keep booting into DFU-loops. I searched again then found fixrecovery. I downloaded it and ran fixrecovery 43 (for 4.3.3 fw?) then my iphone got all this code running and i thought it's gonna boot jailbroken now, but it's not, it always returned to DFU.

So i tried fixrecovery for a couple of times again but it really is not kicking the iphone out off DFU. I tried to restore it again, then same thing happens, stuck on DFU-loops.
Now the iphone doesn't display anything anymore, only a black screen. iTunes still recognizes it whenever i plug it off and on though, so does my computer.

Programs used:
sn0wbreeze 2.7.3
firmware 4.3.3
tinyumbrella 5.10 & 5.10.1 (just got updated yesterday? i redownloaded)
iReb 4

Please help. My sister's gonna kick my illiterate ***** if she knew that her iphone's only got black screen Please please please help. It's okay if i don't have to jailbreak anymore, I just want her iphone up and running, even though i have to upgrade to the latest firmware and having it's baseband upgraded. Please. Thank you so much to those who would try to help..

Additional info: I also tried restoring it in iTunes to the latest firmware, but i'm getting errors. Already used tiny umbrella with TSS server on and 4.3.3 shsh blobs saved, but still, BLACK SCREEN

[xtacy]

Ok. Uhhh.. So tinyumbrella has 4.3.3 right?
Do this
Start TSS server.
Open iTunes .
Restore to STOCK 4.3.3 ..
you will most probably get error 1.

Download latest redsn0w . Click fixrecovery.
Jailbreak using jailbreakme then :-)

[chir0n]

Ok, I'll do that, thanks for the swift response mate! Thank you!

Edit: I'll update you as soon as i finish with the results!

Edit2: I got error 1601, not error 1 do i have to run iReb4 to pwn it again into DFU mode?

Edit3: So i used iREB4 and error 1601 vanished. Then I tried all of your instructions, ran tss server, restored to stock 4.3.3 fw, then it completed the restore but got error 1 (1013), then used redsn0w 0.9.9b7(latest?), clicked on recovery fix.. but still, a black screen

in tiny umbrella, it says "DFU device connected" on the last part of the log, so it means it's still on DFU right? i'm already losing hope, but still open to new inputs or help regarding to my problem.

Anyways, thank you so much xtacy..

[xtacy]

Are you sure you are doing it exactly?
If u don't want a jailbreak you can just update to 5.0.1 from iTunes and it will work fine.

[chir0n]

Yes i'm quite sure that i'm doing it fine..but NOT too sure if my saved shsh are valid. i have 2 folders on my .shsh folder that tiny umbrella created. one is .cache and has a "lib-win.jar" file on it, the other folder is named .known_devices and has a c3fffdc5d6d685c***************.plist file. is that my shsh blobs for 4.3.3? anyways when i'm restoring via iTunes software update, it always give me errors..can you pls provide me a *VERY* detailed guide on how to restore the iphone to latest version? for example:

1.) what software should I DFU pwn it with,and that program's compatibility settings (i'm using win7, should i set it to winxp sp2 or sp3?) and should i run it as administrator?

2.) should i run iTunes together with tiny umbrella during the update?

3.) can this be done without valid shsh blobs?

Thanks xtacy!

[iYeow]

Restore to 5.0.1 first to get it up because you are in permanent dfu. Donwgrade later if you have the blob saved.

[chir0n]

Thanks, i'll try it again. You sure i'm not gonna do anything before actually trying to restore via iTunes?
ex: DFU-pwn it again via iREB4 or anything? what if i get errors? pls be more precise... :l

[iYeow]

Put your iphone into recovery mode and restore to 5.0.1, don't need TU, ireb to do that. Let apple verify your restore.

[tylorddude123]

2 Things to try.

1. Perform DFU backwards, always works for me. Step 1: Hold home button 3 seconds > hold lock and home 10 seconds > then hold lock for 15 seconds. (DFU Mode backwards normally boots it up for me. it will show Apple logo and takes about 30-60 second boot)

IF THAT DOES NOT WORK, Try this

2.
Download RedSn0w > Press "Extras" > Select "Recovery Fix" > follow on-screen instructions

RedSn0w can be found at:
iOS 5: Jailbreak iOS 5 with RedSn0w | iPhoneHeat

iOS 4: Download RedSn0w 0.9.9b1 | iPhoneHeat

iOS 3 or less: Use iBooty

[chir0n]

Put your iphone into recovery mode and restore to 5.0.1, don't need TU, ireb to do that. Let apple verify your restore.

Thank you. I just got home from school and exams are finally over. i hope i could fix this before xmas break finishes..thanks so much for all your support!

2 Things to try.

1. Perform DFU backwards, always works for me. Step 1: Hold home button 3 seconds > hold lock and home 10 seconds > then hold lock for 15 seconds. (DFU Mode backwards normally boots it up for me. it will show Apple logo and takes about 30-60 second boot)

IF THAT DOES NOT WORK, Try this

2.
Download RedSn0w > Press "Extras" > Select "Recovery Fix" > follow on-screen instructions

RedSn0w can be found at:
iOS 5: Jailbreak iOS 5 with RedSn0w | iPhoneHeat

iOS 4: Download RedSn0w 0.9.9b1 | iPhoneHeat

iOS 3 or less: Use iBooty

I will definitely try first the solution you provided on #1. Regarding on your sol'n 2, i've already done that a couple of times..but still ends up on black screen dfu. thank you though!

Edit1:
@tylorddude123, sol1 && 2 are not working..
@iYeow, im getting errors 3194..already edited the hosts file and removed gs.apple.com? entries in it..

iTunes updates the iphone to version 4.3.5, not 5.0.1..

Edit2: I'm updating my itunes..i just found out that it's really outdated (10.2) and there is 10.5++ out..i read in apple's knowledge base that error 3194 pops up when you're not up-to-date with the current release..

Edit3: Success! the iPhone is up and running again! PHEW! here's what i did:

a.) i uninstalled iTunes 10.2, downloaded the latest iTunes version which is 10.5.2, then installed it.
b.) After that i ran iREB4, because i was sure that it's firmware is still 4.3.3 (i had no success upgrading it to 5.0.1 because i have a older version of iTunes which is 10.2), i let it pwn it into *true* DFU mode again.
c.) after pwning it to DFU mode using iREB4, i let iTunes restore the iPhone with it's current and up-to-date firmware 5.0.1. and it got kicked out of DFU. but eventually after all what i did, i wasn't able to restore anything, ranging from contacts to emails and apps. Purely fresh. but that's ok, atleast my older sister isn't gonna make me pay for her iPhone anymore.
d.) the iphone's baseband was updated. i don't care anymore. atleast i didn't brick it.

What i'd do before making myself attempt a jailbreak AGAIN:

e.) i'm gonna wait until there would be a untethered jailbreak for 5.0.1, and an unlock for the latest baseband which is 4.11.08. i would certainly wait until a SURE and TRUSTED untethered jailbreak that would appear, instead of risky ones. THERE IS NO POINT IN RUSHING FOLKS.
f.) i'll always check and review tutorials, make sure i would not SKIP crucial steps, like properly saving SHSH BLOBS FTW.
g.) have someone assist me, like the kind guys here in MODMYI

Cheers. I believe that a perfect, untethered jailbreak will soon emerge from the devs of this community. Thank you so much for giving us a free, versatile and feature-rich iPhones which Apple fails to provide. :-)

[iYeow]

Hopefully your sis is using the official carrier as she will not be able to use Gevey sim to unlock.