stk500_getsync() attempt 1 of 10: not in sync: resp=0x7c

There may be many reasons why you may get an stk500_getsync() error when uploading code to an arduino, but the 0x7c error is a bit rare.
There might be various reasons for it, but when I recently got it on a “new” arduino nano, fresh from China, I could see that the Blink program that it came with worked, so I knew  that the processor was working.
Ofcourse I tried another cable, eventhough a faulty cable usually gives another return code. Yes, it came with a CH340 chip, but that never caused a problem before.
So i tried:
Tools-Processor-Atmega328 (Old Bootloader)
That worked immediately

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