BACKUP ALL FIRST!!!
wait: before do anything at your own risk, read all first!
download both files:
http://i.mt.lv/routerboard/files/p2020_3.10.fwf
http://www.mikrotik.com/download/share/ ... c-6.11.npk
[thanks Normis for the link (
http://forum.mikrotik.com/viewtopic.php ... 61#p414543)]
and drag with winbox in files folder [hint: remove first all unused]
***be sure are not on sub-folder***
paste this command on terminal, or with winbox go to system / routerboard and click on [upgrade] button,
/system routerboard upgrade
y
reboot the routerboard
from system / reboot, not with disconnecting power,
you done.
After each new 6.x exit [if dns and wan are propperly configured],
you can use system / packages / check for updates
for the new software.