for the MD5 of file that does not match data in flash, here is the complete command line . Just in case it could help. C:\Users\User\Documents\Arduino\hardware\espressif\esp32/tools/esptool.exe --chip esp32 --port COM10 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_m...

Hello, Thanks a lot for your answer . Yes the boards were working when pluged it for the first time ( there is always a little demo in the screen ) . Then i was able to upload the code . Here is the exact board that i have : http://www.instructables.com/id/ESP32-With-Integrated-OLED-WEMOSLolin-Getti...

Hello everyone, i get this error when trying to upload my sketch : A fatal error occurred: MD5 of file does not match data in flash! here is the complete log : esptool.py v2.1 Connecting........_ Chip is ESP32D0WDQ6 (revision 0) Uploading stub... Running stub... Stub running... Changing baud rate to...