Re: brew mode

On Sun, 13 Feb 2005 19:43:03 +0200, E L <[email protected]> wrote:
> Hey,
> if I get my phone in brew mode manually is there a way I can check
> what's going on there?
Not really.  You have to contruct proper HDLC packets.  (with CRC64
checksum, escapping of 0x7d and 0x7e and termination with -x7e).  Then
you have to know the protocol contained in the packets.

> When I try to do it through bitpim it tries to reset the phone which
> doesn't work
> so I want to try it manually first.
If the phone is already in brew mode and you try to browse the
filesystem, it won't reset the phone, it will just detect that it is
in brew mode and go from there.  If you can't browse the filesystem,
then either the phone doesn't have a filesystem, or the brew mode and
filesystem is on a different USB interface.  I don't know too much
about it, but apparantly on some phones, one interface is used as a
modem and for AT commands, while another is used for diagnostic mode.

Your carrier seems to support CDMA.  Is the Samsung SCH-N392 a CDMA
phone?  If so, it should have a filesystem.

With Samsung phones, the phonebook and calendar can usually be
supported with AT#P commands, so that level of support should be
possible.  Ringer and wallpaper is usually done through the
filesystems, except some Sanyo phone which have a different protocol
in diagnostic mode.  If your phone has some protocol other than the
filesystem protocol, you'll have to do protocol analysis to find it
out.

Stephen
> 
> Ely


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click