I changed some code and now it does upload. Using blynk-ser.bat

i followed the steps from the blynk video but i changed the code that was uploaded and now it does not work. i ran .bat file on com5 and now i cannot upload the correct code as i get error, because the blynk-ser.bat file connects it to the router or ethernet. what to do? i have the correct code it just does not upload it.


Less “help” posts and more details please.

What code did you change (blynk-ser.bat or the Sketch)?

What did you change in the code?

What errors if any are you getting and where?

And finally, are you closing the blynk-ser.bat window before trying to upload? If not then do so, you cannot have multiple connections to a COM port.