RAR package of 4.81 MB with firmware for the P-660HN-T1 ADSL wireless router. No version or build is stated in the name, so check the archive for a readme or image header that identifies the release. It is suitable for repairing modems that boot-loop or lost their firmware, using web upload, TFTP or the console port. Confirm that the unit is the plain T1 and not a T1A or T1H variant, as those take different images, and back up the settings before flashing.
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 @afsbiosfree. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →