ESP8266 Community Forum

I have tried to flash 2 firmwares (latest and nodemcu_20150126.bin). Esp8266Flasher will show that the firware was uploaded successfully. When I restart the ESP module and open ESPlorer, I get garbage in the output on both the speeds (9600 and 115200). Also the blue LED on ESP is always on. Any idea? All the help appreciated.


Output:
PORT OPEN 9600
Ÿ’àÇÀ XG-Š—‚—†W‚‚‚š‡-—‚—‚—†‚‚š‡-—Š—††‚‚š‡-—‚—‚—‚‚‚š‡--‚—†—‚†‚†’Ç%‚—‚—†‚Ɔš‡-—†—†„†‚š‡%—‚—‚—‚‚Šš‡%—Š—„Š†‚š‡-‚—†—††‚‚š‡-—†—†—‚†‚š‡-‚—‚—†††‚š‡-—†—Š††‚ØÇ%‚—‚—‚—‚†‚Ú‡-‚—†—†—Š‚†š‡-—†—‚—‚†‚š‡-‚—‚—‚‚‚‚š‡-‚—†—‚‚†‚š‡%‚—†—†—†Æ„š‡-—‚—‚—‚†‚؇-—†—†—†††š‡-†—†—†—†‚‚š‡-‚—‚—‚‚‚Šš‡%‚—†•†‚‚‚Ú‡-—†—†W‚ƆšÇ-‚—†—ŠŠ‚‚š‡-‚—‚—‚W‚††Ú‡-—Š—†‚‚Šš‡-—†—††‚‚ÚÇ-—†—†—‚††š‡%‚—†—‚—‚†‚š‡-—‚—†W‚‚Šš‡-‚—‚—†—††‚š‡-‚—†—†—†‚„š‡-—Š—Šu„‚†š‡-—†—†Š‚Šš‡-—†—‚—‚Ä‚š‡-‚—†—‚—†‚†Ú‡-—Š—†‚‚ŠšÇ-‚—†—‚—‚†‚š‡-Š—†—†W†‚‚šÇ-‚—‚—†Š‚†š‡-—‚—Š†‚†š‡-—†—†—††‚š‡-Š—†—‚—‚†‚š‡-‚—†—†‚‚‚š‡-‚—†—‚†‚†š‡-—†—‚†‚†š‡-‚—Š—Š—‚‚‚š‡-‚—†—‚—‚‚Šš‡-‚—†—†—†‚ŠšÇ%—‚—‚—‚††š‡-—Š—Š—‚†‚š‡-Š—†—‚—‚Ɔš‡-—‚—Š†‚†’Ç-—Š—†U†‚†š‡%‚—†—†—†‚†š‡-—Š—‚—‚‚‚š‡-—†—†—†
PORT CLOSED

PORT OPEN 115200
†ã&àÇÀ€€€b€$œàrÜÜœ‚œÄ’àÇÀ€€€b€œŸ’àÇÀ€€€l`Ä�‚ß‚n€$œàrœßØnnŸ„ bŒ

Checked at 74880 and am getting below output.

PORT OPEN 74880
€€€l`!T,W,R¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):
epc1=0x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):
epc1=0x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):

Yo need full Erase chip. And check your power supply.

nirajbhatt7 wrote:Checked at 74880 and am getting below output.

PORT OPEN 74880
€€€l`!T,W,R¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚ÂÁ‚‚‚‚‚‚‚b*Á�Íê‚ÂÁ‚‚‚‚‚‚‚b*á�Ù…‘‘Éõ‚ÂÁ‚‚‚‚‚‚‚b"•Á�õ‚ÂÁ‚‚‚‚‚‚‚j¤d*‹WR¯¬Y\ºZË SIj¤T�Åê‚ÂÑ‚’Š‚ªÂ±*Á�Éê‚x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):
epc1=0x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):
epc1=0x4021058c, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
Fatal exception (0):

Thanks for the reply
I am using AM1117 power source board and measured the output with multiplier and power is 3.3 V.
Do you mean doing INTERNAL://BLANK at 0x00000 in ESP8266Flasher.exe
And then I am assuming I have to upload the firmware again.

I have done the above now but the same result.