CODEWITHSUNDEEP
backupfirmwarenodemcu
Johnnybossboy
Johnnybossboy

Reputation: 311

How to backup NodeMCU firmware?

How do I backup my NodeMCU firmware before upgrading?

Note: I am a completely newbie at this. I have never worked with a NodeMCU before. I have other programming skills, so programming is not new to me.

Upvotes: 0

Views: 1668

Answers (1)

Marcel Stör
Marcel Stör

Reputation: 23565

esptool.py has a (undocumented) read_flash option which you can use to read the firmware from 0x0000 back to a local file.

$ esptool.py read_flash
usage: esptool read_flash [-h] [--no-progress] address size filename
esptool read_flash: error: too few arguments

Upvotes: 1

Related Questions