A fatal error occurred: MD5 of file does not match data in flash!

pchidley

I purchased an M5Stack Fire and it worked great for about twenty minutes. (using Win10 and Arduino)

Since then I get the error; A fatal error occurred: MD5 of file does not match data in flash!

I've spent an insane amount of time trying to find a fix. Do I just have broken hardware?

Please help.

salty_good

@pchidley Hi, Which writer do you use? M5Burner ?
Please try the erase button once and setting Baurate 115200 bps!!

salty_good

@pchidley then...Please try these way.

Turn upside down cable connection.
Change cable If you have an another cable.
Remove battery bottom.

salty_good

@pchidley Hi, Please try this command on your terminal.

esptool --port <YOUR PORT> write_flash_status --non-volatile 0

or

esptool.py --port <YOUR PORT> write_flash_status --non-volatile 0

take care this command!!!

dfacchin

@salty_good said in A fatal error occurred: MD5 of file does not match data in flash!:

@pchidley Hi, Please try this command on your terminal.

esptool --port <YOUR PORT> write_flash_status --non-volatile 0

or

esptool.py --port <YOUR PORT> write_flash_status --non-volatile 0

take care this command!!!

Thanks this is the way to go with my M5Stack, got it new and I was never able to make it work, this command fixed it!

Great! Thanks

mr.clay

sorry for resurrecting this post from the dead but where exactly do you run the esptool --port <YOUR PORT> write_flash_status --non-volatile 0 command?

ajb2k3

@mr-clay said in A fatal error occurred: MD5 of file does not match data in flash!:

sorry for resurrecting this post from the dead but where exactly do you run the esptool --port <YOUR PORT> write_flash_status --non-volatile 0 command?

You run this in a terminal or command line program.
Replace YOUR PORT with the name of the port that appears in arduino. On windows this may be COM followed by a number on OSX this is often somelike USBslab.