Amped Wireless AP20000G

High Power Wireless-N 600mW Gigabit Dual Band Access Point Product page

"LOO0070 REV: 1.3" is silkscreened on the board.
 * The board is using all Tocon capacitors.

The device uses 2x Skyworks (SiGe) SE5004L / 5004L power amplifiers for the 5GHz radio and 2x Skyworks (SiGe) SE2576L / 2576L power amplifiers for the 2.4GHz radio.

Device recovery
If the device has been misflashed and is unable to boot, recovery (without serial) should be manageable by switching the device into recovery mode (hold 'reset' button while connecting power until LAN ports stay solid blue). The device is then flashable via TFTP @ 192.168.1.6.

Firmware would seem to be accepted in the standard Realtek format.
 * You will need to split the vendor's firmware into the three constituent files (using binwalk would be highly recommended).. and then likely upload in the following order..
 * the webpages bin (unk. name, don't care enough to find out now)
 * root.bin
 * linux.bin

Additionally, the firmware of other devices sharing the same board (i.e. the SR20000G and R20000G) appears to be easily flashable using this method (functionallity was not tested aside from noting successful boot and persistence of previous AP mode settings).

See conjurs post on the Realtek thread on the DD-WRT Forum and, presumably, the RTK' SDK code and documentation for more details.