Hi All,
So, I received the new TCON board and installed it into the XBR-55A8F tv and it started up with a GREEN and AMBER light, with the Android music in the background......... no picture. Went to the SONY help website and noticed that when new TCON board is installed the firmware is to be reloaded. So, I downloaded the firmware ".pkg" for my tv. Copied it to a flash drive, as SONY recommended, then inserted the flash drive into the USB port. The tv began with a WHITE blinking light (telling me that the tv was downloading the firmware for the tv). Then it rebooted and instantly, 4 RED lights began blinking again. So, replaced the POWER board and the TCON board, and back to square one. Any suggestions? Please advise, as I am now ready to call the tv repair techs to see what the problem is and the cost to fix. Thanks