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Revision as of 22:21, 6 January 2009
The first iPhone 3G unlock payload. Released on 01/01/09. [1]
Contents
Credit
MuscleNerd, and The dev team
Exploit
Relies on an unsigned code injection vulnerability.
The actual unlock works by a daemon patching the baseband's RAM on-the-fly, overriding the carrier lock code. It is not permanent because of the signature checks - the bootloader has to pass the sigchecks and the baseband has to pass them too, so any change to the baseband/bootloader cannot be made.
Current Injection Vector
yellowsn0w refers to the reuseable payload, but it requires an injection vector in order to be inserted into the baseband. yellowsn0w was originally to be released with an injection vector that works on pre-2.28.00 baseband versions. However, geohot had an injection vector for 2.28.00 and the decision was made to release yellowsn0w with this injection vector to benefit the most people.
The injection vector is discussed here
Source Code
The source code for yellowsn0w is now live [2]
Compatibility
| Country | Provider | yellowsn0w Version | SIM/USIM | Ingoing Calls? | Outgoing Calls? | SMS? | GPRS/EDGE? | UMTS/HSDPA? | Comments |
|---|---|---|---|---|---|---|---|---|---|
| Bermuda | Mobility | 0.9.5 | SIM | No | No | No | No | Not Available | Still stops working after a while of regular use :( |
| Germany | O2 | <=0.9.4 | SIM | Yes | Yes | Yes | Icon shown but not tested | Icon shown but not tested | |
| Israel | IL Orange | 0.9.5 | USIM | Yes | Yes | Yes | Yes | Yes | Requires turning airplane mode on and off to get signal. After that, works perfectly. |
Additional information: http://report.yellowsn0w.com/
