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Philips GoGear Ariaz /37

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touslyxid:
Update: Uploaded scans


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The 08 in SA4ARA08KF/37 denotes that this is the 8GB version, there are also 4GB(SA4ARA04KF/37) and 16GB(SA4ARA16KF/37) versions.

Supports:
[ ♫ ]Audio: MP3, WMA, AAC, FLAC, APE, WAV
[ ❦ ]Images: PNG, JPEG, BMP
[ â–¶ ]Video: MJPEG, WMV (320x240)
[⌨]Text Files: TXT
[ â—Ž ]Radio: FM, RDS
[ ✇ ]Recording: WAV

[][][]

saratoga:
Here is a link to the actual firmware files:

http://mit.edu/mgg6/www/SA4ARA08KF_37.zip

They're STMP, so see this page for decoding them:

http://www.rockbox.org/wiki/SbFileFormat

pamaury:
I had a look and the sad news is that both the updater and the firmware are encrypted with non-zero keys. This leaves only a few possibilities:

* brute force the key (unlikely but perhaps it is made up of ascii characters)
* find an older firmware upgrade which has updater encrypted with two keys (one zero and one non-zero)
* based on reverse engineering of other updaters and assuming they are the same, find a flaw in the upgrade procedure (hard)The second option is clearly the one to follow.

touslyxid:
I uploaded some pictures of the hardware, the proper way to open it is through a hidden screw under the top bar(Where the Return and Menu/Lock keys are):


The bar opens and hinges on the bottom part(So you'll try to open it from the really thin slot on the top), it also applies a force that causes it to close, so you have to sort of hold it back while you unscrew the hidden screw.

Since my scanner has problems with distant objects I needed to irreparably damage the board to get it as flush as possible with the scanner glass. I still have the board if anyone has any questions about the the small lettering that may have not come out as clear in the scans.

According to pamaury it seems the software side of this device was encrypted to such a degree as to make it infeasible to implement rockbox, at least for the foreseeable future.  My role in any potential port has come to an end, I'll take this as an expensive lesson on dropping seventy dollars on a device I don't know enough about.

Next chance I get I'm getting the Sansa clip+, it has better sound quality at half the price and its firmware is actually pretty good. (Better when accompanied with Rockbox of course ;) )

pamaury:
Hi,
how damaged is the board ? Maybe someone would be able to repair it with the appropriate tools ?

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