I had two old nano boards which were working OK and then didn't use for a while.
On trying to use them again recently I kept getting upload error messages.
They have been in a drawer for a while so presumed they were damaged.
Today received two brand new Nano boards aadvertised as
Nano V3.0 For Arduino with CH340G 5V 16M compatible ATmega328P
Cannnot upload sketches to either of these
error message reads
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
An error occurred while uploading the sketch
I am using Arduino IDE 1.8.9
Windows 10
With no board pins connecetd to anything
I have checked that IDE is set to Nano
I have checked under Tools that COM Port is set
I have checked in Windows Device Manager that device is working properly
I also reset Port from COM 5 to COM 3
This appears in IDE
I have downloaded and installed CH341 Driver - twice
I have unplugged USB several times with or without IDE open
Restarted IDE several times with cable connected and disconnected
Used two different cables
Pressed reset buttons at various points
The green light goes on
When sketch finished compiling red light breifly flashes
When uploading - red light comes on
Error message appears.
Have connected an Arduino UNO R3 to same PC same IDE version with no problem.
Extensive search on Google with many suggestions none of which work
Would appreciate a little help
None of the abover makes any difference
I ha