So I was replacing a bad cap on my DIr-615 and noticed I have the 635(or 625?) board except there is no USB port or 3rd antenna soldered on.
I soldered on a 3rd antenna from an old linksys router but don't know if it's working.
If I flash the DIR-635 FW(I'm using DD-wrt) will it work fine and enable the antenna to work? Will having a third antenna even be beneficial at all for range and signal strength?
I plan on flashing the the DD-wrt firmware for the 635 if that makes any difference.