I'm new to Arduino and not well versed in programming period. I'm trying to upload some firmware changes in Marlin for my 3D printer because I keep getting heating errors that cause a forced reset. However, I'm currently unable to upload the firmware. COM port and board version are correct. Any help is greatly appreciated. Happy Easter everyone!
Windows 10
Anet A8 Plus
Using Arduino 1.8.9, and downloaded latest version of Marlin from the website. Flash is up to date, cables are brand new.
Error log:
Sketch uses 109904 bytes (86%) of program storage space. Maximum is 126976 bytes.
Global variables use 4100 bytes of dynamic memory.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x67
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xda
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x0d
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x21
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x21
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xce
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xf8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xf8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xf8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xf8
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.