I have timed the double reset as best as possible multiple times but the upload doesn't happen before the board leaves bootloader mode.
this is all I'm given as an error which doesn't appear until after the board leaves bootloader mode (after the 8 seconds) The one thing that I haven't been able to find info on is the fact that I do not have a SparkFun version, I have a non branded from ebay if that makes any difference
How can I fix?
Sketch uses 3460 bytes (12%) of program storage space. Maximum is 28672 bytes. Global variables use 149 bytes (5%) of dynamic memory, leaving 2411 bytes for local variables. Maximum is 2560 bytes. avrdude: ser_open(): can't open device "\\.\COM11": The system cannot find the file specified. Failed uploading: uploading error: exit status 1