Yo tengo uno con chip BCM3349KPBG y al acceder mediante cable serie me sale lo siguiente:

eCos - hal_diag_init
Init device '/dev/ttydiag'
Init tty channel: 80808f38
Init device '/dev/tty0'
Init tty channel: 80808f58
Init device '/dev/haldiag'
HAL/diag SERIAL init
Init device '/dev/ser0'
BCM 33XX SERIAL init - dev: 0.2
Set output buffer - buf: 80875408 len: 2048
Set input buffer - buf: 80875c08 len: 2048
BCM 33XX SERIAL config
0x00000014 [tStartup] BcmBfcStdEmbeddedTarget::InitStorageDrivers: (BFC Target)
Configuring/Loading Flash driver...
0x00000014 [tStartup] BcmBfcStdEmbeddedTarget::InitStorageDrivers: (BFC Target)
Loading ProgramStore driver...
0x0000001e [tStartup] BcmBfcStdEmbeddedTarget::InitStorageDrivers: (BFC Target)
Loading BootloaderStore driver...
0x00000028 [tStartup] BcmBfcStdEmbeddedTarget::InitStorageDrivers: (BFC Target)
Loading NonVol driver...
0x00000028 [tStartup] BcmBfcStdEmbeddedTarget::InitStorageDrivers: (BFC Target)
Storage drivers initialized successfully.
0x00000032 [tStartup] BcmBfcStdEmbeddedTarget::InitDeviceAbstractions: (BFC Tar
get) Creating singletons for ProgramStore/BootloaderStore/NonVol devices...
Detecting the next image number that we will store to by default...
0x3c Computing CRC32 over image2 to ensure that it is valid...
ProgramStoreDeviceDriver::ProgramStoreDriverIsHeaderValid: WARNING - ProgramSto
re header HCS check failed!
ProgramStoreDeviceDriver::ProgramStoreDriverIsImageValid: WARNING - Header isn'
t valid!
0x3c Done computing CRC32!
By default, we will dload to image number 2!

By default, we will dload to block number 0!

0x00000046 [tStartup] BcmBfcStdEmbeddedTarget::InitDeviceAbstractions: (BFC Tar
get) Device abstraction singletons created successfully.

Function: SetHardcodeVendorProfile
The ProfileMagic of image is not equal to 0xFFAAAAFF!!!
0x0000005a [tStartup] BcmCmBpiNonVolSettings::BcmCmBpiNonVolSettings: (Euro-Doc
sis CM BPI NonVol Settings) WARNING - Singleton pointer is not NULL! There are
multiple instances! Leaving the singleton pointer alone...

Reading Permanent settings from non-vol...
Checksum for permanent settings: 0xdc4b363a
Settings were read and verified.


Reading Dynamic settings from non-vol...
Checksum for dynamic settings: 0x58dc6ce3
Settings were read and verified.

Creating SNMP agent cablemodem agent
DON'T think we need to go here - so don't:::: init_mib !!!!
WARNING: netsnmp_brcm_create_tstring called with no address!

If you pressed the 's' key before this point, we will skip driver initialization
...
Creating DOCSIS Control Thread...

Y ahí se me queda....

Parece ser que hay que pulsar 's', pero por mucho que pulso la tecla no responde. Parece ser que tiene capada la entrada de datos.

¿¿Hay alguna manera de conectarlo via usbjtag?? Igual por ahí se le podría meter mano....
Parece ser que