Information about router:
MODEL: F5D8235-4 v2
Firmware: DD-WRT v24 SP2
Current State: Bricked (Wired/Wireless lights purple; USB storage light blinking every second)
How it happened:
1. I logged in to the DDWRT panel to go back to stock firmware
2. Began upgrade, and sent f5d8235v2_webrevert.bin using online form.
3. Internet connection died somehow.
4. I (stupidly) pulled the plug thinking nothing was written as the upload never finished.
5. Tried 30/30/30 method
6. Tried tftp (I'm running ubuntu)
7. Posted here.