Hello. I need a help with an original dcdigital kit. I did the flex ribbon installation, did the continuity tests with a multimeter and everything looked right. When I connected the DC to the TV I only got an image, no audio. I checked the test setup and all hearts appear. So I connected the composite cable to the tv and to my surprise I got audio. I went back with the DC to the workbench and checked again, no bridges with solders, everything seems fine. I don't know if something is wrong with my DC or with the dcdigital or with the ribbon cable. I would like to know if the ribbons they sell on AliExpress are compatible with the original dcdigital from black dog tech.