I have light only on LAN LED-s.
I managet to put it once in recovery by shorting pin 9 to GND and flashing dd-wrt.v24-12548_NEWD_openvpn_jffs_small.bin.
After 5 minutes , power off/on but again LAN LED-s lit.
I have bricked it by running:
"nvram set sdram_init=0x0009
nvram set sdram_ncdl=0