Κυκλοφόρησε η νέα έκδοση του purplesn0w Release Candidate 2 με πολλά bugs διορθωμένα…

* 3G(the network speed) issues fixed…i’m pretty sure
* Now only patches one file, CommCenter
* Leaves no traces on your baseband after it runs. Seriously
* Much more clean and reliable.

Be sure to have legit activated 3GS
Disable 3G if you don’t have it(like T-Mobile).
Add apt.geohot.com to Cydia
Install(or Update) com.geohot.purplesn0w
Watch for success output in Cydia(actually do this step)
Wait for signal, and enjoy your unlocked iPhone(no reboot required)

Follow @geohot on twitter

via Geohot blog

Ο Geohot μας εξηγεί την ιστορία του purplesn0w… μέσα απο το blog του.

About a year ago today, I found the at+stkprof exploit. Back then, I struggled for 3 days to write a payload. No luck, I just wasn’t a good enough reverser. So I stashed the exploit away until December, when I gave it to dev for use in yellowsn0w.
Now a year later, I wrote a payload and delivery system in a day. And it’s an awesome payload. Ideally we’d like to patch the lock out of flash, but with the apparently proper sig checks, that isn’t going to happen. So purplesn0w is the next best thing. I copy the page I want to patch to an unused region of memory. In memory I patch it. Then, using the MMU, I map the flash page out and remap the patched memory page in it’s place.
No new iPhones are really unlocked, activation creates a ticket allowing the baseband to be used with that sim. The lockstate of the phone really lies on apples servers. Unlocked is auth all sims. Locked is auth AT&T sims only. Fortunately this ticket system provides an easy way to deliver the payload and reexecute the patched code all in one. And since the ticket is already delivered on baseband resets, theres no need to write another daemon to hog battery. I use the daemon already designed for this, lockdownd. A patch to commcenter gets it to run the payload on ticket delivery. And a patch to your activation record contains the payload. So using existing apple machinery, I unlock when needed.
In retrospect, I should’ve just patched commcenter to send the payload. Then hacktivation would work no problem. Oh well, tomorrow is another day. I’ll add hacktivation support then.

Εδώ θα βρείτε τον κώδικα ολοκληρωμένο.

via Geohot blog

Ο Geohot απαντάει στην iPhone dev team με το δικό του unlock για iPhone 3GS

Wifi fails? Battery fails? Unlock fails? You need purplesn0w, the geohot 3GS unlock solution. Now I know you here a lot about different colors of sn0w, but I’m here to tell you why purplesn0w is the best. First off, what is purplesn0w? It’s a soft unlock for your 3GS that I’d actually use day to day. It’s not a daemon that takes any resources, and it doesn’t add a task to your baseband. It’s very close to a true unlock. All it does is patch three files, CommCenter, lockdownd, and your wildcard activation plist(which you need, activate w at&t sim first, no hacktivation support yet). That’s it, no other files are installed. Props to Oranav for the at+xlog exploit!
A full explanation is coming soon, but I think you clever reversers out there will see what it does, and see why it’s so pristine The payload is radically different from other varieties of sn0w. beta as usual, back up first.

Πως μπορείτε να το εγκαταστήσετε;

Be sure to have legit activated 3GS
Disable 3G if you don’t have it(like T-Mobile).
Add apt.geohot.com to Cydia
Install com.geohot.purplesn0w
Watch for success output in Cydia
Reboot, and enjoy your unlocked iPhone

Το παραπάνω unlock ισχύει για συσκευές που δεν είναι unlocked (activated) είναι δηλαδή αγορασμένες από εξωτερικό και είναι κλειδωμένες στον πάροχο της κάθε χώρας. Εάν αγοράσετε το iPhone 3GS από Ελλάδα θα είναι ξεκλείδωτο και δεν χρειάζεται να κάνετε κάτι από τα παραπάνω!

via Geohot blog