Having spent a couple of days on & off fighting to flash an AOL firmware out of a V585 V6 I gave up and passed it on to a mate who's with AOL.
Unfortunately, the AOL router boot code is locked down blocking firmware downgrades along with a number of other useful commands. I am not sure that changing the firmware can be achieved without a JTAG (which is a way OTT exercise in my view). There are arguably better (more reliable and perhaps more stable) DSL modems out there that made me drop this as a bad job and get a 2WIRE 2700HGV off ebay. It got me higher sync speeds and reduced/eliminated resyncs. YMMV.