Seeeduino upload error continuing...

I still can’t upload my programs to my Seeeduino, even though I have the correct COM port (COM6) selected, and I have the right board (Deumilanove of Decimilia with ATMega 126) selected… I know I have the right settings because Serial Port Monitor works, but uploading doesn’t. Also, there couldn’t be any physical damage to it because 1. it’s new, and 2. there is no visual damage to any of the components. HELP!!! By the way, I’ve gotten the “avrdude” error multiple times even when I try to upload two completely different programs at two completely different times. This is getting really frustrating also because I’ve also looked for warranty info on the Seeeduino and I can’t find anything…

I seemed to have figured out why the board isn’t responding- the UART seems to be missing! Is there a warranty on this?

Dear customer,

You mean missing some signal?
Could you try to other board to upload with Uart?