I'm confused. What firmware version should I download?

thierrywalt · #1 (**permalink**) 21st Aug 2008, 2:02 pm

I opened up my MP4. It's a BAK MP4SDSP. Inside, I found the cpu number:
ATJ2097H
F9190FA 4AI

.. and the samcung ship says:
SAMSUNG 646
K9G8G08U0M

but I can't find the PCB number... There is a number here: SN-004_V1.2. Could this be the board id? I looked around and I think it is a 9.0 firmware. Is that right? But, there are so many of them... I have no idea which one is the right... Can someone help me? If you need, I have pics here!

Thank you!

MakaveliThaDon · #2 (**permalink**) 21st Aug 2008, 3:52 pm

google around...this mite help...

http://www.mympxplayer.org/new-playe...ir-vt2143.html.

thierrywalt · #3 (**permalink**) 21st Aug 2008, 4:09 pm

Thank you! I actually had already read that, but as I didn't know the chip number i sort of ignored that. Ok, let me see if i got it:

First, I have no dump, backups or something like this. You are saying me to download that 9.0.43 and flash it? Ok, but my mp4 is very different, it has a 2 inches lcd, and card reader... Can't I kiil my mp4 forever if I flash another fw?

Thank you for your help!

thierrywalt · #4 (**permalink**) 21st Aug 2008, 4:26 pm

I think that I got you know! You mean I should use s1wfx to extract my dump, fix it and upload the full firmware to the player? That's it?

Well, I tried. In Windows xp, the device is not recognized in adfu server, so i installed windows 98, where it is recognized and i can recover it... I tried using s1wfx in both... In win98 it simply didn't work... In winxp it just gave a lot of errors, like if it was finding it but couldn't...

But, after all, is that what you meant?

David99 · #5 (**permalink**) 21st Aug 2008, 4:38 pm

The ATJ2097H is an Actions brand chip:

http://www.actions.com.cn/en/product.aspx?id=20

They don't seem to have much in the way of documentation on their website (at least not on the English website)

thierrywalt · #6 (**permalink**) 21st Aug 2008, 4:50 pm

that sucks... i was looking in my manufacture's site if there was something, and I just discovered that they don't vene have a site! that's a shame

i am understanding now... the only thing is to extract my dump, but even this i can't.

just a thing: my player is without batteries... does it change something?