This item cannot be updated because it is locked as read-only

Had quiet a tough issue to resolve today. It had to do with documents that were added to a library automatically being locked.

No user or admin account could edit, delete, override checkout or checkin. The document could not be managed from Explorer view either.
I searched my fingers blue. Some theories pointed me to Network load balancers, while other mentioned the temporary internet files being the culprit. I’m sure all of these are valid solutions in some instances, but, they did not work in our environtment.

I needed to find an answer. So I started by checking the settings of the Document Library. I found that it been configured to use record centre settings.
After a little more research, it appeared that this was exactly the cause of the problem. It made sense, as the configuration was done is such a way to block editing and deleting of the documents in the library.

There was an easy way to fix this, below are the steps I tool:

Go to Central Admin, click on Record Declaration Settings

Next, change the setting under Record Restrictions from Block Edit and Delete to No Addtional Restrictions

Then go to the library in question, and edit the Record Declaration Settings found under Permissions and Management

Uncheck the box next to “Automatically declare items as records when they are added to this list.”

so that the site collection default settings will be used

Now when you add items to the library, they will not automatically be declared as records and will not have a lock on the item

Hope this helps someone figure out their problem.
Please leave comments if you have any.