RB mAP2n can't boot

Hi, I have a problem with my router - mAP2n. I wanted to upgrade the system from 6.17 to 6.32 and upgrade failed. I clicked “Reboot” for upgrade the system and now are all LEDs lighting, except PoE out. Router restarts every 30 seconds (all LEDs goes off and in less than 1 second on).

I tried NetInstall to install the system, but NetInstall didn’t find router. I tried really hard, but nothing worked.

I don’t know how to success, my router doesn’t have any serial port. Is there a possible way to install the RouterOS without serial port? Maybe I was doing something wrong so if anyone could write the process step-by-step, I’d really appreciate that. Thanks in advance. At the end, sorry for the mistakes in english, I’m not Pro. :slight_smile:

Try to use latest Netinstall:
http://www.mikrotik.com/download

The board appears, try to reinstall with latest RouterOS.

If you are able to login to your board, you can try with command:
/system routerboard settings set boot-device=try-ethernet-once-then-nand

Restart the board with connected ether1 to your netinstall server.

Also check if Netinstall IP and server is enabled:
http://wiki.mikrotik.com/wiki/Manual:Netinstall


If you can’t even boot the board, try to use Backup BIOS:

1 Power off;
2 Press and hold reset button;
3 Power on;
4 Wait ~1 sec;
5 Release reset button;
5 Wait for board to boot up
6 If board boots, Log into your board, Run command:
/system routerboard upgrade;
/system reboot.