SAMSUNG YH-920

[pyro_maniac]

The logf output into a file works fine now and i got my first results on my player. I attached the file. Now i try to test more debug for the hardware.

EDIT: I also ran disassembler on my binary files but i don't understand the output yet.

[lowlight]

pyro_maniac:
Can you test this Rockbox bootloader?

Rename the original firmware file on the device to OF.mi4.
Rename the attached file to replace the original firmware.

Hopefully something shows up on the screen after it restarts. Let me know what happens.

[pyro_maniac]

i am not sure how the bootloader should get into the flash!?  But i will try it.

EDIT: i tested it but your file is not accepted and declared as corrupt.

EDIT2: Now i got it! Your file has to be named as PP5020.mi4!!

I got screen on the YH 920! \o/ "Rockbox boot loader"

[Chronon]

You don't load it to flash.  Just put it on the internal storage with the current name of the firmware file.

[lowlight]

pyro_maniac:
Attach the USB, the device should appear as a mass storage drive. In the System\ directory there should be an mi4 file, either PP5020.mi4 or FW_YH920.mi4 (let me know, I'm guessing). That's the original firmware. Rename it to OF.mi4. Then rename the file I posted to the name of the original firmware mi4 file (PP5020.mi4 or FW_YH920.mi4). Note, the file I posted is an mi4 file (not a bin file), but the forum rules don't allow me to upload mi4 files.

[pyro_maniac]

As you can see in my post befor, i had to make some changes to make it work. But now i got a boot screen.

[lowlight]

So the original firmware is called PP5020.mi4?

Does the rockbox logo (it should display quickly before the debug info) look right? For example, the greys aren't inverted (light=dark)?

Does the original firmware load? You'll need OF.mi4 in the System\ directory and you'll need to delete or rename any .rockbox directories.

If you switch on the hold switch after the Samsung logo shows, but before the Rockbox logo, does it say "Hold switch on. Shutting down...." and then shut down?

[pyro_maniac]

So the original firmware is called PP5020.mi4?

On the YH 920 PP5020.mi4 and PP5020.bin are the possible names i belive to know.

Does the rockbox logo (it should display quickly before the debug info) look right? For example, the greys aren't inverted (light=dark)?

Yes Rockbox bootloader is shown, some version infos and YH 920 is shown on top. Seems to be the right color for me.

Does the original firmware load? You'll need OF.mi4 in the System\ directory and you'll need to delete or rename any .rockbox directories.

On the test i made there happend nothing after the bootscreen. But there was a .rockbox directory on the device.

If you switch on the hold switch after the Samsung logo shows, but before the Rockbox logo, does it say "Hold switch on. Shutting down...." and then shut down?

I have low battery now but in some minutes i will try again on a clean device and then i will test the hold button.

EDIT: When i press the hold button, no rockbox logo is shown on the display and the rest is still the same. no OF is loading.
And the colour seems to be inverted. the rockbox symbol is dark and the background is light.

[lowlight]

Can you take a picture.

On my h140 (with the same lcd as the 920) the text is black on a "white" background. That may be different from the original firmware (I've never seen it). The logo displays exactly as the bmp:
http://svn.rockbox.org/viewvc.cgi/trunk/apps/bitmaps/native/rockboxlogo.160x53x2.bmp?view=log
(well, with the blue being the lcd background).

If the OF isn't loading (making sure System\OF.mi4 is there and there's no .rockbox directory), then what are the debug messages on the screen?

[pyro_maniac]

Sorry for the bad quality but i had only the handy cam.

The text on the screen is "Version: r20399M-090403 Samsung YH-920" and behind it there is the normal boot screen.

There is no rockbox on the device and the OF is named "OF.mi4. OF isn't starting.

EDIT: So why dont't you post some code? kugel is waiting for that, too. And together we come to an end faster.

[kugel.]

I received the code from lowlight, tried it out, and created http://www.rockbox.org/twiki/bin/view/Main/SamsungYH92xPort accordingly.

[funman]

Could you post the code on flyspray?

My cousin has a YH920 he doesn't use and perhaps I could help you on this port.

[kugel.]

Well, we're all waiting for lowlight to commit it, but I think I can give you the code (I'm not sure if it's meant for public).

On my yh-925, the only thing missing seems to be audio playback, btw. USB works nicely, the rest too.

[pyro_maniac]

I think it would be the best way, too. lowlight didn't answer mails again.

For the YH-920 there are some LCD issues and lowlight said, that he had the same thing at the YH-925 and he fixed that on his device already.

EDIT: oh and there are some issues on bootloader and there is no sound, too.

EDIT2: I filed a task on the tracker. FS#10189

[lowlight]

Now officially committed.