Picostation 2s are supported by Chaos Calmer under the "ath25" target. Older versions, from Barrier Breaker and previous, referred to the chipset as "atheros".
Attitude Adjustment (12.09): https://downloads.openwrt.org/attitude_adjustment/12.09/atheros/generic/openwrt-atheros-ubnt2-squashfs.bin
It should be possible to use the ubiquiti web interface to install the firmware binaries.
When flashing those images, the Ubiquiti web interface *may* show a warning about unsupported third-party firmware. This warning can be ignored.
The devices come with a handy tftp server for uploading images without a web ui (or in case of certain "bricked" states). It's the same as: http://wiki.openwrt.org/toh/ubiquiti/nanostation, but for redundancy, the process is:
tftp 192.168.1.20 tftp> bin tftp> put openwrt-atheros-ubnt5-squashfs.bin flash_update Sent 1965199 bytes in 28.8 seconds tftp> quit
or in Windows Dos prompt
tftp -i 192.168.1.20 put openwrt-atheros-ubnt5-squashfs.bin flash_update
7. Signal LEDs might be blinking during the upgrade. On a Nano5L, the power lights go back and forth. 7. Wait ~7 minutes before restarting or until the power lights stop their back and forth blinking. 7. Restart. The device should be back to its old configuration (OpenWrt doesn't overwrite or modify the NVRAM settings).
8. telnet to 192.168.1.1 and set a password with
If you have already installed OpenWrt and like to reflash for e.g. upgrading to a new OpenWrt version you can upgrade using the sysupgrade command line tool. It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.
cd /tmp/ wget https://downloads.openwrt.org/chaos_calmer/15.05/ath25/generic/openwrt-15.05-ath25-ubnt2-pico2-squashfs.bin sysupgrade -i /tmp/openwrt-15.05-ath25-ubnt2-pico2-squashfs.bin
To restore original firmware back you can't use mtd or sysupgrade but you have to use tftp method.
First put Picostation in recovery mode via reset button on power on, and then flash original flash image via tftp.
→ Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.
|Instruction set:||MIPS MIPS 4KC|
|Flash size:||4 MiB|
|Wireless:||SoC-integrated: Atheros AR2316 2.4GHz 802.11b/g|