Sandisk Sansa e200 v2

[skaos]

Photos of a disassembled e200 v2 is posted on an abi thread:
http://www.anythingbutipod.com/forum/showpost.php?p=186333&postcount=33

[Bagder]

The e200 v2 series are new hardware, quite different from the original e200 series. Here's a pic of the v2 PCB:

http://img260.imageshack.us/img260/3448/img7133lc8.jpg

(linked from this abi post: http://www.anythingbutipod.com/forum/showpost.php?p=186333&postcount=18)

There are indications that the SoC is a Telechips one now, but nothing of that kind is really sure at this point.

[linuxstb]

It should be possible to identify if it's a Telechips CPU by trying to put the device into "usb boot mode" (similar to "manufacturing mode" on the Portalplayer-based Sansas) and seeing what USB device IDs are presented.

If it's TCC77x based, then it should appear as 0x140e/0xb021, and if it's TCC7801, then it should be 0x140e/0xb011.

I've no idea how to put an E200v2 into usb boot mode - try turning the device off, then attaching to USB whilst pressing different button combinations.  The LCD won't display anything (so you may not notice it is on), but it should appear in your computer as a new USB device.

Obviously, a firmware upgrade file would also be very useful in identifying the hardware.

[skaos]

I may have been wrong when I in another thread suggested that the c200v2 was Telechips based. This assumption was based on the same label (20-99-00112-2) on the SoC in the sansa m200 and c200v2, and from the RB wiki it was mentioned that the m200 was using Telechips.  It looks like there are several hardware versions of the m200 so Sandisk may have switched SoC's on the m200 as well.

Some photos of m200 versions:
v4.1: http://www.rockbox.org/twiki/pub/Main/SansaM200Port/m240back.jpg
v3.0: http://medlem.spray.se/trancentral/sansa1.jpg, http://medlem.spray.se/trancentral/sansa2.jpg

On the other hand, if the m200v4.1 and e200v2 uses the same SoC then there are some m200 firmware that someone may want to look at: http://files.zefie.com/PMP/sansa/m200/firmware/

[Bagder]

Thanks a lot!

I got the SansaM200_plusA4_1_08 firmware version and had a look. It turned out slightly disturbing...

The firmware file is scrambled/encrypted (of course), but in the header there's plain text mentioning of "AS3525" and I find the coincidence a bit far too unlikely that it would be mentioned like that without being a reference to the AMS chip using that name:

http://www.austriamicrosystems.com/03products/products_detail/AS3525/description_AS3525.htm

So now my theory is that m200 v2, c200 v2 and e200 v2 all have AMS chips inside!

[zychda]

I took some more pictures from different angles and sides of the e280 v2
Look at them here:

http://www.esnips.com/web/zychda-Stuff

[Bagder]

ARM9TMDMI core 250 MHz and there are companies out there who claim Linux ports to this beast. It seems the Ainol U60 is AS3525-equipped and runs Linux... (no, we haven't found any published sources)

See this: http://automania.newmedia.hk/component/page,shop.product_details/flypage,shop.flypage/product_id,8/option,com_virtuemart/Itemid,26/vmcchk,1/

[rp]

I mailed my contact at AMS today, i will keep you informed about the progress.

[gnu]

If you need any help/ translations, I'm an Austrian who might be able to help...

[Btwizt]

That would have to be done completely on Sandisk's part. IMO sending them teh v1's like that was already above waht is expected..at least to me.

[ponce10]

There is deffinitly a way to switch to USB (MSC) Mode:

1. switch off your Sansa e280v2
2.switch ON the hold button
3.press the |<< button an plug in your USB-cable
4. Keep it pressed  until the Sansa is completly recognized.

Works for shure with Windows Vista and XP!   Grin

[zajacattack]

Excellent! I have added this information to the wiki for anyone who wants to use MSC mode on his/her e200v2.

[krazykit]

There is deffinitly a way to switch to USB (MSC) Mode:

1. switch off your Sansa e280v2
2.switch ON the hold button
3.press the |<< button an plug in your USB-cable
4. Keep it pressed  until the Sansa is completly recognized.

Works for shure with Windows Vista and XP!   Grin

This actually sounds like you're in Recovery mode (though I don't have a device to test this, it looks rather similar to putting the v1 into Recovery mode).  Can you view and browse your music and other files on your Sansa, or is it a small partition?

Edit: according to Bagder's post here, it appears that this is Recovery mode, rather than MSC mode.

Edit 2: Ok, appears not then.  Just wanted to make absolutely sure no incorrect information was being put on the wiki or in the forums.

[philibuster]

I tried this, and it's definitely not "recovery mode", as the partition is not 16mb, and has the VIDEO, PICTURES, RECORD, AUDIBLE and MUSIC directories. It also contains RES_INFO.SYS, MTABLE.SYS, SYS_CONF.SYS and version.sdk files. I'm pretty sure this is MSC mode.

For the life of me, I can't get recovery mode to show up. Perhaps it doesn't exist. Strange.

[ponce10]

@ krazykit: it is the MSC-Mode. I see the e280v2 as a drive with 7,6 GB space.