Hi guys.. Sorry for my English, Im brazilian and Im not speak English well.
I`ve upgraded my routerboard and reset all configuration. After that procedures, my routerboard can not boot anymore and ACT led is eternally blinking.
But if power off and power on the router board with 2 seconds reset button pushed, routerboard works normally and the boot is done properly.
Thanks for any help.
Regards
Seems likt there is some issue with your Main BIOS:
http://wiki.mikrotik.com/wiki/Manual:RouterBOOT#Main_and_Backup_loaders
If you are able to log into your board with Backup BIOS, try to upgrade again with command:
/system routerboard upgrade;
/system reboot.
If this does not help, you can manualy upload new BIOS file (can be found in routerboard.com), and upgrade or downgrade.
In many cases this solves the problem.