WNR3500Lv2 bricked!

After running happily tomato-Netgear-3500Lv2-K26USB-1.28.RT-N5x--120-AIO.chk,

I tried to install tomato-K26USB-1.28.RT-MIPSR2-120-AIO.trx (please do not ask why)

and bricked my WNR3500Lv2... steady amber light after a brief flash of blue (wireless LED) after power-on. 

Ping shows 1-3 successful replies during boot (presumably during brief flash of blue), pings before and after are lost.

Any idea what went wrong? 

Thanks,

Stephen (waiting for delivery of USB-serial cable)

:(