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Problem with ESP8266 NodeMCU cannot upload sketch

Q&A Forum › Category: ESP8266 › Problem with ESP8266 NodeMCU cannot upload sketch
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superflay123 asked 7 years ago

Hello all, I have problem with ESP8266 NodeMCU it’s new when i try to upload sketch with wifimanager he upload successful but when i try to access wifi manager dont work. I try with other basic sketch but same problem a cannot access my nodeMCU he not respond and not react of command. how can i back my ESP8266 module to factory and how  can i format him.

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3 Answers
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Rui Santos Staff answered 7 years ago

Hello, if you upload a new sketch to your ESP with your Arduino IDE, the ESP8266 old firmware will be erased and it will run the new code. Can you upload a new sketch to your board?
Thanks for asking!

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superflay123 answered 7 years ago

Thanks for your answer Rui Santos. Yes i try any sketch old, new, different, sketch from example but problem is same. I cannot connect to him 

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Rui Santos Staff answered 7 years ago

You need to provide more details. What do you mean you can’t connect to it? Basically, after uploading an Arduino sketch to your ESP the old firmware is erased… Which code are you uploading to your board?