Hi
after upgrade to 2.6.5, theres shown a little lock in corner or all media manager folder's icon.
and "get info" say that permission is set to read.
how can i add edit or new too?
for now really cant use the site!
thanks

Do these folders have permissions to upload images?
Try to upload through Joomla! Media manager or FTP to see if you can upload files.

thanks for answer
they have 755 and 777 also but no hope
also joomla media manager working.
only a little lock is added on each folder icon,
how can i change the permissions in K2 media manager?
what file content can be change to add write permission .

K2 latest version is 2.6.7 and not 2.6.5. What Joomla! version do you use?
Try to update both Joomla! and K2 to the latest versions and check again.

im not using an English version because of date and time conversation .
and had to use an earlier version not the last .joomla is 2.5.11
i add an screen capture.
thanks for help.

I'm sorry I didn't ask you earlier but do you have this issue on frontend editing or backend?