mAP lite - stopped working after reboot

Hi, I received my new RB mAP lite today and wanted to configure it. Everything worked fine (upgrade to 6.40.1, reboot, basic settings) but after disabling a few packages (hotspot, DHCP, wireless) the device after reboot stopped working. It is turned on but it is not communicating through ethernet - all LEDs except power are turned off. If I try reset the device nothing changes and even it is not seen via Netinstall.

Is there anything I should try or is that a hardware problem?

Please try to follow these steps to load the backup bootloader:

  1. Power your device off;
  2. Press and hold reset button;
  3. Power device on;
  4. Hold reset button pressed for 1-2 seconds and then release;
  5. If device boots up, then run command “/system routerboard upgrade”

If previously mentioned steps do not help, then use Netinstall for installation again and make sure that “Keep old configuration is not enabled”.
http://wiki.mikrotik.com/wiki/Manual:Netinstall

Thanks for the reply. I’ve tried Netinstall again on different computer and finally I’ve succeeded and the device works.