Nexia Device NX5850 Digital Audio SoC Chip

[etronicsland]

Anyone own an mp3/mp4 player that uses this chip? Not much is written about it. Seems there are no ready available firmwares or tools for this chipset.

Some general features of the board are:

High Performance RISC MCU
Decodes MP3, WMA and ASF
Supports WMA Digital Rights Management (DRM) and other security schemes
Encodes analog data as MP3 from FM In, Line In, or Mic.
Hardware supports NAND Flash, SmartMedia, MMC, and Secure Digital Card
More than 75 hours of operation on a single AA battery
Voice record in ADPCM format
Windows and Macintosh USB Mass Storage Class support
Upgradeable firmware
Energy saving dynamic power management
Supports Up to 4GByte NAND Flash Memory
Unlimited Subdirectory Support
Playlist Support
Battery level detection using LRADC
User-friendly Firmware Development Kits(FDKs)
Supports WMA Decoding with DRM, 10 Band Graphical EQ and Navigation at the same time
Various Sound Effect
- SRS Wow 3D Sound Effect
- 10 Band Graphical EQ
- Ultra Boost Sound Effect
- Bass and Treble control; configurable multiple band control
Available Applications including MP3 En/Decoding, WMA and ASF Decoding
- FM
- MPV(1.8”, 32 fr./sec, 128kbps)
- VOIP
- Game
- Bluetooth

[vbsvbs]

I have an mp3 player with nx5850.
I also have a firmware extractor for it.
Contact me at vbsbey@gmail.com

[etronicsland]

Hello,

Have you extracted the firmware? You should post a download link for the mp4 firmware.

Thanks.
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[vbsvbs]

firmware for nx5850:
http://www.supertalent.com/support/driver_download.php
section: Firmware for Mega Screen MP3 Player

firmware extractor:
http://209.85.135.104/translate_c?hl=en&u=http://bbs.mydigit.cn/read.php%3Ftid%3D13219&prev=/search%3Fq%3Dnx5850%2Bfirmware%26start%3D10%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-US:official%26hs%3Dgc8%26sa%3DN
(registration required)
(I have already downloaded it and can send it to you via email)