Yes, you're best to run the cure fw in Updater.exe separately for 7xx for the reason of short preboot time. The latest firmware for 7x5 is V4.50 from 6th Sept 2012. Always best to use the same fw version if possible to make the cure, probably you've done that. Sometimes Updater will throw an error message on the first click of 'OK' but load the firmware the next click of ok if you're quick enough to exit the message window and try again [i.e. within that 10 sec window to start the flash].When I run quickcure it tells me exception: readfile. Guess I should have formatted it the one time I got it to mount.
I feel like I'm so close to fixing this thing. So my question is, is the problem that my firmware is already up to date and therefore I can't update it, or did I miss a step somewhere? If someone could point me to the newest firmware that would be great as well, the firmware i'm using is from 2012 according the date modified. .......
PS: Welcome to GPSPower [even if you are from FL]