: "andrea241184" <andrea241184@yahoo.it>
: <mt13x9@yahoogroups.com>
: [mt13x9] Re: New MTK MPEG Card
: 27  2008 . 17:45

--- In mt13x9@yahoogroups.com, "ryanxor" <yahoo@...> wrote:
>
> 
> > 
> > you should find the tx,rx pin of the mt1389de and try to flash the
> > firmware with a serial cable..
> > 
> > For the 1389de pinout, the seria cable and the tool (mtkflasher) try
> > in the file section of this group.
> 
> Unfortunatelly, it´s not so easy.
> 
> There are two people here in Brazil (with previous experience with
> firmware extraction) trying to extract the firmware from two different
> players based on that same chip. The available tools aren´t working
> with the provided serial port.
>

in some dvd player the external (tx,rx,gnd) connector, if present, is
not always connected directly to the mt1389..

example: XM400pro (sigmatek) --- > serial cable if connected WORK
         PK6750 (peekton) -------> serial cable if connected WORK
         XM600pro (sigmatek) ---> serial cable doesn't WORK because
                                  there are some missing components on
                                  the top side of the pcb (two 
                                   resistor in this case)..

try to connect the serial cable directly to the mt1389, probably
should work...
my experience its based only with serial RS232 interface that i found
on this link

http://tech.groups.yahoo.com/group/mt13x9/files/Disassembling/%21Serial%20Interface/

bye
andrea





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