After upgrade one RB1200 to 5.23 and firmware 3.02, on boot only one beep is played.

I tried to recover with Netinstall, from a windows netbook and from other notebook with ubuntu (wine), and I can not see the RB on Netinstall. I try with network cable, i do not have serial cable.

Thanks for help.

Try ether1 for netinstall

Why?
In RB1200 port 10 comes with the label boot.

But i will try eth1

--------------
After try:
No success

Thankyou.

You're right - If don´t work - buy serial cable and http://wiki.mikrotik.com/wiki/Manual:Netinstall

You're right -

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Use ether10 port on RB1200 to connect to Netinstall

If don´t work - buy serial cable and http://wiki.mikrotik.com/wiki/Manual:Netinstall

well, well, well