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Tuesday, May 11th 2010, 8:34am

[solved] Unbricking LNU23SL Mainboard (NAS4220 Clone)


i am trying to unbrick my nas with a LNU23SL Mainboard (ver. 1.21). This NAS seems to be similar to the NAS4220 from Raidsonic, but the Manufacturer is Seenergy (NVR 104).
On this NAS i get no response in the serial console after flashing a new firmware to the device. So i think that only a JTAG recover is possible.
I have build an unbuffered JTAG Adapter an soldered the connections to the mainboad. Also a short connection from pin1 to pin 17.

Now my problem:
The Nas_FlashTool has detected the JTAG-Adapter and the Device (Device is in Debug Mode, SL3516 CPU found, etc.) but it says every time that there's an unknown flash type. On the mainboad ist a MX29GL128BEH2-90G Flash.
Can somebody help me?

Thanks in advance.

I have added a screenshot from the FlashTool with all informations.
Anthrax6937 has attached the following file:
  • Flasher.JPG (40.05 kB - 43 times downloaded - Last download: Sep 10th 2018, 7:04pm)

This post has been edited 2 times, last edit by "Anthrax6937" (May 15th 2010, 9:22am)



Posts: 1,001

Location: Wien


Tuesday, May 11th 2010, 9:43am

Welcome Anthrax6937!

Ok, we have to check if the MX29GL128BEH2-90G is compatible to the other flashes being supported.
We have to make a new release of the tool which will take some days. When it's ready I send you a test version.

Regards HWguru
Leute ohne Laster haben oft wenige Tugenden...
NAS2000 2.3.2.IB.2.RS.1+Lüfterabschaltung+SSH+do_it+zusätzliche commandline tools+changed root password
1. suchen - lesen - Google - lesen - 1. Fragen gehören ins Forum, dann profitieren alle davon!


Tuesday, May 11th 2010, 9:45am

This is great. Thank you very much. :)

This post has been edited 1 times, last edit by "Anthrax6937" (May 11th 2010, 10:03am)


Saturday, May 15th 2010, 9:16am

With the new testversion of the Nas_FlashTool, i am able to unbrick my NAS. Thank you very much to everybody who helped me for unbricking my NAS.