I have managed to unbrick a D-Link DIR-615 Rev A1 back to D-Link firmware (1.00) from firmware 1.10. Allow me to describe the situation:
I recently encountered a situation while loading firmware into an Actiontec MI424-WR router, when I found myself without a bootable firmware, and the OpenRG bootloader would vehemently refuse to load .rmt files.
Here's the dump of /proc/cpuinfo:
This photo shows you the location of the solder points for the antenna. The "tip", or center of the antenna wire, is a little longer than the braided shield, and is soldered to the point marked "Tip". The shield is just soldered together onto the portion marked "Shield".