SamyGO

Hi everybody, I'd like PVR, Guide+ and Internet@TV on my TV but even with enabling these features via Hotel mode, nothing work (after upgrading firmware from 2010/04/13_001012 (original) to 2010/11/4_003003).
Which motherboard can I install in my TV instead of the original one?
Better if exists a software solution without opening the TV.
Thank's a lot

c550/5000 mainboard replacement is tricky and we don`t have detailed how-to about how to remake lvds cable. User who did replacement successfuly gone w/o to leaving more detailed coments