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MD5 of file does not match data in flash! - KC686-A6 board - ESP32-D0WD-V3 (revision v3.1) #11251

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sm4l asked this question in Q&A
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Board

ESP32-D0WD-V3

Device Description

DC 12V 2A POWER SUPPLY
USB-C CABLE TO UPLOAD
nothing attached. is just to read and command some digital and analog Inputs and outputs

Hardware Configuration

#define ANALOG_A1 36
#define ANALOG_A2 39
#define ANALOG_A3 34
#define ANALOG_A4 35

DS18B20/DHT11/DHT21/LED strip -1: 32
DS18B20/DHT11/DHT21/LED strip -2: 33

DAC1:26
DAC2:25

IIC SDA:4
IIC SCL:15

Input_IIC_address 0x22

Relay_IIC_address 0x24

RS485 RXD: 14
RS485 TXD: 27

SPI_Bus: (For LoRA/nRF24L01)
CS: 5
MOSI: 23
MISO: 19
SCK: 18

LoRA sx1278:
RST:21
DIO0:2

nRF24L01:
CE: 22

RS485:
TXD:27
RXD:14

RS232:
TXD:17
RXD:16

Extend serial port on PCB:
TXD(define by yourself):12
RXD (define by yourself) :13

Version

latest stable Release (if not listed below)

IDE Name

vscode

Operating System

windows 10

Flash frequency

40Mhz

PSRAM enabled

yes

Upload speed

115200

Description

Im getting this error on flashing my esp32. Someone know how to fix?

Sketch

its the Kincony KC686-A6 V1.3SP board

Debug Message

PS D:\Downloads> python -m esptool --chip esp32 --port COM9 write_flash 0x0 .\KCS_KC868_A6_V2.2.12.bin
esptool.py v4.8.1
Serial port COM9
Connecting....
Chip is ESP32-D0WD-V3 (revision v3.1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 2c:bc:bb:bf:69:5c
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Flash will be erased from 0x00000000 to 0x001f4fff...
Compressed 2049248 bytes to 776667...
Wrote 2049248 bytes (776667 compressed) at 0x00000000 in 68.0 seconds (effective 241.0 kbit/s)...
File md5: dca5832fce0deaae24a324e292f9835d
Flash md5: f06388bf6208034b6d44d07eb26137ad
MD5 of 0xFF is b4b16439163a7c79fe686aebc65ec0b9

Other Steps to Reproduce

If you need more info just ask me to test . i'm begginer in ESP32

I have checked existing issues, online documentation and the Troubleshooting Guide

  • I confirm I have checked existing issues, online documentation and Troubleshooting guide.
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Replies: 1 comment

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Where did you get the firmware? Are you sure it is a full disk image and not just the app partition?

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2 participants
Converted from issue

This discussion was converted from issue #11249 on April 15, 2025 09:46.

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