Placeholder ZIP for the ZyXEL P-660HW-T1 v3 wireless ADSL router, just 225 bytes and therefore unable to hold a working firmware image. It probably contains only a note or link, so verify the contents before counting on it. A complete image for the v3 hardware revision is needed for any repair. Read the revision from the router label, as v2 firmware will not suit a v3 board, and flash through the web page or recovery mode without interrupting power.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →