Hello, My old but very well looked after 600D (27k count) has suddenly stopped taking pictures. Most of the time the LCD screen is on but none of the buttons work. Other times I can press the menu button and I can access the sub menus. Sometimes it takes a pic soon as its turned on. I have: Reset all settings Updated the firmware Formatted the card Changed the battery Tried MF & AF lenses Pressed all the buttons at once in frustration Is there anything else I can try before throwing it away..? I totally understand its old and not worth the cost of been sent away. Thanks.