my arduino uno doesn't upload code

Projects Programming
1

when i upload blink scketch .it shows
avrdude : stk500_recv() : programmer is not responding :cry: :cry: :cry:

2

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3

ii have working this uno but sddently shoed this msg

4

Thachuthas:
ii have working this uno but sddently shoed this msg

Re your other discussion. Have you connected anything to the PD0 PD1 (rx tx) pins?

If not then just disconnect and then reconnect the usb cable. That usually works for me. :slight_smile: