I upgraded routeros from 6.4 to 6.7 - successfully.
After this I updated routerboard in terminal: system routerboard upgrade yes
Then I restarted router....it didnt upgrade routerboard...

I repeated this steps 5 times, without success. Why?

did you use power cycle or reboot command? try the other way

@rado3105
Try this:

ros code

/system routerboard settings set force-backup-booter=no
/system routerboard upgrade
/system reboot

HTH,

I have found when doing upgrades, that use termail to do the upgrade install and then instead of using term to reboot, go to system>reboot and that works better.