Arduino Atmega 1280

Hello, I wonder if you can help me with one thing in Arduino. I've bought this Arduino. Http:// # U4hs0vl_uz0 when I connect the Arduino to the computer starts flashing a red light without stopping, why is that reason?

And then when you compile a program I get this error: avrdude: stk500_getsync (): not in sync: resp = 0x00 Why is it? How I have to do to fix it?. Thanks

Sounds like a questionable bootloader was installed. Try reloading the bootloader from within the IDE. Also make sure you have the correct PC driver for whatever that board has for a USB/Serial interface.

Sorry, But I donĀ“t understand anything Can you explain me how to do it step by step. thanks

Get an Uno and start with the Learning page. You're not ready for higher complexity & issues yet. Then you can use the Uno to reprogram this card later.

Please I need you to help me solve the problem