Want to reset iPhone 4..

[tansup3rman]

hey I have an iPhone 4 with Simple Mobile service. i'm great with the phone, its at 4.2.1 with 1.59.00 baseband....

What I wanted to do was like get a fresh clean install of 4.2.1 and still keep my baseband.....is it possible to do that?

Basically the reason I want to do it is cause the phone has pretty messed up network settings right now and mms won't work and I want really really badly to fix that....

please guide me....

[Cowboy]

What you need to do is get a custom ipsw which you can do with sn0wbreeze

[tansup3rman]

Hey please help...I might have messed up, though I dont know how, I followed the instructions with snowbreeze, it helped me put the phone in dfu mode and then through itunes I started the process of restoring to the custom firmware...

but then the progress bar got stuck...it was like 3/4 the way done...and it got stuck, wouldnt do anything...I removed the device and now its like my phone is stuck in recovery mode, if I hold the power key it goes to black screen, and if I try to power it on it goes to the usb cable to itunes screen......

please help! I dont know what else to do....

Pleeeeeeeeease help....I dont know how to get out of this recovery mode

[HappyTroller]

Tansup3rman u have any blobs? Try kicking out of recovery with TinyUmbrella or the thing iH8Sn0w made(forgot what its called) if none is working u must create custom .ipsw and then shift+restore while ur in PWNED DFU (use resn0w for pwned dfu) my only tip

[HappyTroller]

And yes it does preserve baseband so u Can unlock with ultrasn0w

[tansup3rman]

yep I do have blobs, and with Tinyumbrella I did say exit recovery but it just goes to blank screen and I cant seem to get it into DFU....but I will try the above...appreciate it sir!

[HappyTroller]

Ur welcome bro, Btw its called RecBoot

[tansup3rman]

Still not able to get out of recovery and into DFU....=/

I tried the rec boot and that "exit recovery" button made phone blank screen, so I figure its turned off but the steps to put it into DFU aren't working....

is there a utility to put the phone in DFU mode?

[HappyTroller]

Have u tried redsn0w 0.9.6 pwned dfu?

[tansup3rman]

Hey I got it in DFU mode, but itunes keeps erroring out with error 1600.....

moar help?

[HappyTroller]

Thats expected, now you should be able to kick out of recovery. The firmware is installed but Apple does not want you to install lower/custom firmwares

Thats expected, now you should be able to kick out of recovery. The firmware is installed but Apple does not want you to install lower/custom firmwares. Kick it out with TU or RecBoot prefer TinyUmbrella