Baseband Device

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Revision as of 11:52, 9 June 2011 by Redart (talk | contribs) (added ipad2)
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This is the device in the iPhone that manages all the functions which require an antenna. The baseband processor has its own RAM and firmware in NOR flash, separate from the ARM core resources. The baseband is a resource to the OS. The Wi-Fi and Bluetooth are managed by the main CPU, although the baseband stores their MAC addresses in its NVRAM.

The iPhone's baseband processor is the S-Gold 2. The iPhone 3G, the iPhone 3GS and the iPad make use of the X-Gold 608 chip for this purpose. The iPhone 4 (GSM) and iPad 2 uses the XMM 6180, the iPhone 4 (CDMA) uses the MDM6600.

You can check some Baseband Commands.


This is the area in the baseband where the lock state is stored.


0x400--NCK token
0xA00--IMEI signature
0xC00--Locks table


Many of the sections are encrypted using TEA based off the CHIPID and NORID. See NCK Brute Force for more info.


S-Gold 2

X-Gold 608

XMM 6180

Theoretical Attacks

Boot Chain