RB2011 BOOT PROBLEM

Hi

I have a rb2011

but from yesterday to day its not working >> It cannot boot

what should I do to fix this problem

How can I update it by net install

It not contained serial port

what should I do

please help me

Deleted because not related.

RB2011 reset and Netinstall is documented in the quick guide here: http://routerboard.com/pdf/409/rb2011L-qg.pdf

To Netinstall: Start Netinstall software, hold reset button on back, apply power, wait 5 seconds or longer and release. The RB should show up in Netinstall.
To factory reset: hold reset button on back, apply power, wait until LED lights start flashing, then release.

THANK YOU ALL

BUT

WHERE IS SERIAL PORT

You don’t need a serial console in order to perform Netinstall.

The 2011L series do not have serial ports.
The 2011 (non-L) series have an RJ45 console port on the back of the device that utilizes a standard Cisco console cable pin-out.