Hello ALL
I can not reset my card, even when using winbox, I detected no mac address of my cart routerboard 433AH, I do not know how to reset a serial cable, someone he could 'm help, should I use a crossover serial cable.
and the reset routerboard with the hold metal
object don’t work
Please help me, i d’ont want lost my routerboard
Thanks
http://wiki.mikrotik.com/wiki/Manual:First_time_startup
Method 1. Console Cable
If your device is a RouterBOARD, it doesn’t have a monitor connector. You will have to either find a console cable (or Null modem cable) or see Method 2.
Plug one end of the serial cable into the console port (also known as a serial port or DB9 RS232C asynchronous serial port) of the RouterBOARD and the other end in your PC (which hopefully runs Windows or Linux). You can also use a USB-Serial adapter. Run a terminal program (HyperTerminal, or Putty on Windows) with the following parameters for All RouterBOARD models except 230:
115200bit/s, 8 data bits, 1 stop bit, no parity, flow control=none by default.
or for RouterBOARD 230:
9600bit/s, 8 data bits, 1 stop bit, no parity, hardware (RTS/CTS) flow control by default.
and you should be connected to the Router and can start by logging in and issuing the setup command (see top of the page for details).
More details can be found here: http://wiki.mikrotik.com/wiki/Manual:System/Serial_Console
Once you’re in you can issue “/system reset-configuration” to start from scratch.
I think that you can also reset the board to factory settings by opening up the box and putting a screwdriver between to metal pads at the top right, just next to the screw and power up the device. (The pads look like two beans facing each other like this: () 
)
Hold the screwdriver there for a minute and reboot the routerboard and it would be done.