I had upgrade my Scott 842 Rev3 with the wrong FW CD. Now is dead. When i power on, the display and the red LED flash on for a second. In this second can i see F29 in the display.

i'm trying to back up the firmware in my scott 842 whit MTK tools 1.29 but only thing that is happening after switching on the player and hit upgrade in the program is

LOG: Start to backup
LOG: Init OK
and then its just hang there, using a serial cabel from a Nokia 3310

did i need 3.3v ?

1=3.3V
2=GND
3=RX
4=TX

I download the Original scott FW from this Board and convert it to Serial

I connect the serial cabel to DVD Player.
Turn on the DVD Player
Start Upgrade from the MTK Tool

is this right?

Sorry for my english. reading is better than writing. I`m a stupid german. :-)

what phone cabel are you using ?
can you make some photos showing the connection you made in the player


i used a nokia 3210 whitout the 3.3V when backing up my scott 842

I use a serial cabel from a Nokia 3310

I thing the connection is ok.

-GND = Black
-TX = Brown
-RX = Red
-3.3v = Orange

on the right side under the dvd-rom.

[attachmentid=1349][attachmentid=1350][attachmentid=1351]

I have also an 3210 serial cabel. but i don´t no to connect the 4 wires.
The colors are green, red, no color, blue

[attachmentid=1352]

i also trien a Nokia 3310 cabel first, but never got thst one to work in my player

can you send me pictures from your cabel ?

unfortenly not since i mounted a mini jack plug on the pplayer so i don't need to open it every time i need to use the cabel

My FAQ was, which colors have your wires on the serial cabel, and what color is on gnd, tx rx?

not all cabels are using the same color, look at this pic and see what pin in the plug on the cabel is connectet to what wire
http://download.mtz.softpedia.com/pictures...zConnectors.jpg

Ok, understand this. The wires one the Phone side are

Blue = TX
no color = GND
Red = Mbus (3.3V)
Green = RX

The problem is the serial side. red and green are on one port (look Picture)
[attachmentid=1352]

Is it on your cabel the same on the serial side? This is the problem while i ask for a picture.

i have never opened the seriel plug since its formed in plastic and i then have to cut it open whit a knife, but my cabel diden't had the 3.3V, try and connect it to your player whitout connecting the 3.3V, only Tx, Rx and GND

Ok Thx for help.
i try it tomorrow and post the result.

the 3210 Cabel hang on Flash

LOG: Start to backup
LOG: Flash Type - Unknown Flash Memory
LOG: Check & Backup...

thats all.

the Unknown Flash Memory is cursed by wrong connection, try and switch the Tx and Rx arround

i have done it before you post.

it still be hang by

LOG: Start to backup

My Friend have an other 3210 Cabel i tried tomorrow again.
I will not give up.

I DID IT

My Scott 842 is still alive.

I used a Nokia 3210 serial cabel with 3 wires inside.

Black = GND
White = RX
Blue = TX

I don`t need 3.3V

Special Thx to Hackerjac for the posts

Post a screenshot with your cable, nokia connector and colors of wires.

enjoy,
Mtz

Mtz_ Look at my (last/all) Posts

[attachmentid=1349]

I used an adapter cabel (Black, Brown, Red Orange)

Black = GND
Brown = TX
Red = RX
Orange = 3.3V (MBus)

The Nokia 3210 serial cabel (Black, White, Blue)

Black = GND
White = RX
Blue = TX


I connect the adapter cabel whit the serial cabel


adapter serial

Black = GND = Black
Brown = TX = Blue
Red = RX = White
Orange = 3.3V = no wire need

or

Gnd with Gnd
RX with RX
Tx with TX
3.3v (Mbus) not connect

I was talking about some screenshot like this: http://board.softpedia.com/index.php?act=A...pe=post&id=1352 In that screenhot you can see the Nokia connector, but no White or Black as you described.

enjoy,
Mtz