New firmware for WRT Belkin F5D7632-4?

I have an older spare ADSL-modem/router/AP/switch from Belkin (F5D7632-4).

I spent some time seeking an open source firmware ala OpenWRT or DD-WRT.

My problem is that the chipsets do not seem to be supported anywhere, which I find strange as it was a common device a few years back.

I have opened it and here is a few names which may help you identify the appropriate firmware:

• Infineon ADM6996L (Ethernet switch
  controller)
• Conexant DA4-9401-PCA
  (ARM chip)
• ISL 3886IK (AKA Intersil
  or Prism, WiFi controller)

FCC’s details about the device:

https://fjallfoss.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=767023&fcc_id=%27K7SF5D7632-4%27

Any suggestions or feedback is appreciated.

Thank you.

You seem to have a particularly troublesome model.

For DD-WRT, your router is on the list of Known incompatible devices.

For OpenWRT, none of the WRT models are on the Table of Hardware, Belkin section.

Tomato or OpenLinksys do not apply to Belkin.

The thread Belkin F5D7632-4 v2000 FIRMWARE UPDATE WARNING even cites problems
with updating this model to the latest firmware version from Belkin (and it is not the only such thread).

So I am all fresh out of ideas for any firmware update for this router.
Sorry for the negative answer.

Does not seem to be possible with this model.