How do I enable unknown sources on a Sony Bravia XBR-55x850b?

by dogclown

I can't find how to access that option in it's settings for the life of me.

snkscore

Go to settings/about/build. Then keep hitting the OK/enter on the remote over and over. Eventually it will say you have enabled developer mode. Then go back to settings/security and restrictions and make the setting change.

foundfootagefan

Users have reported that that option has been disabled on some TV models on purpose.