ESP8266 Community Forum

So i want to upload my code to my esp8266 but this message appears:

warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed

please help

esp wrongly hooked up to usb-serial
bad power supply
bad usb cable
+100 other possible causes we can't rule out with the plethora of information you were giving
If you had taken the effort to use the board search, you would have found an answer to each of these possibilities.
lazyness is a bad excuse and punished with silence

schufti wrote:lazyness is a bad excuse and punished with silence