Anyway to secure a new cable to the end of the existing one and pull it back through? If not you will have to cut a small channel in the drywall to run a new cable. If you do that I suggest you install conduit so that in the future it’s easy to swap out a bad cable or upgrade to a new standard.My theater is now complete, Sheetrock and insulation, paint and all. I just hooked up my 4k projector and found out the two HDMI runs to my projector do not support 4k (despite how it was advertised on Amazon), just 1080P only. Very frustrated. I don't know how to run a new HDMI now without ripping up my Sheetrock.
Question is: Is there a way to convert my existing two HDMI's into something that supports 4k so I don't have to put in a new run?