[D900] correct pinouts RX TX for flashing

[paillassou]

Hi All, from FRANCE

i'm looking for the real, correct, and "validated" connexions (RX TX and GND) for making a RS232 cable to flash E900/D800D900 phone ....

I've seen many posts here or in others forums that describe the pinouts like that:

SAMSUNG E900/D800D900 phone keyboard ub
SAMSUNG male connector M20 plug (on the phone)

__________________________________________________ _____________

numbering left to right
_____________________
\ 1........................20 /
---------------------

1&2 = GND
11 = TX
(i think pinout 11 is an OUTPUT that must be connected to the "RX of MAX232" )
12 = RX
(i think pinout 12 is an INPUT that must be connected to the "TX of MAX232" )

__________________________________________________ _____________

OR LIKE THAT (the countnumber is changed)
__________________________________________________ _____________

numbering right to left
_____________________
\ 20........................1 /
---------------------

1&2 = GND
11 = TX
(i think pinout 11 is an OUTPUT that must be connected to the "RX of MAX232" )
12 = RX
(i think pinout 12 is an INPUT that must be connected to the "TX of MAX232" )


SO WHAT IS the good pinouts / countnumber for connexions ???

AND could you give me the right pinout RX and TX for the D800

When we write TX for a pinout of the D800 it's a SIGNAL OUTPUT
When we write RX for a pinout of the D800 it's a SIGNAL INPUT

so in an electronic diagram:

the TX pinout of the D800 must be connected to the RX pinout of the MAX232
the RX pinout of the D800 must be connected to the TX pinout of the MAX232

THANK YOU VERY MUCH for your response
Stephane

[KhOliO]

try to found USb cable

its easy for u

this universal cable working with me

[paillassou]

OK thank you KhOliO

so ... you scheme shows


numbering right to left
_____________________
\ 20........................1 /
---------------------

1&2 = GND


AND could you give me the right pinout RX and TX for the D800

When we write TX for a pinout of the D800 it's a SIGNAL OUTPUT
When we write RX for a pinout of the D800 it's a SIGNAL INPUT

so in an electronic diagram:

the TX pinout of the D800 must be connected to the RX pinout of the MAX232
the RX pinout of the D800 must be connected to the TX pinout of the MAX232

THANK YOU VERY MUCH for your response
Stephane

[paillassou]

Please...someone...technician....RS232..... please...

[v_mam30]

R U clear? U can connect GND someone between pin1 or pin2 cause it connect.

[paillassou]

Originally Posted by v_mam30

R U clear? U can connect GND someone between pin1 or pin2 cause it connect.

Hey i know that PIN 1 and 2 are connected to ground...

but, when you look at the connector...
if you count from left to right or right to left it's different

and in that case...
the number 1 become 20 and the number 2 become 19

and if you want to do a shortcut between GND and VEXT... try...

[paillassou]

http://forum.gsmhosting.com/vbb/showthread.php?t=423052