Reflash to upgrade
You will move an existing SD-card device onto a newer image.
This page only applies when you deploy to an SD-card device.
Upgrading an SD-card device means writing a new image over the old one, on the same card. The mechanical steps are the same as a first flash.
- Download or build the new image.
- Flash it onto the card. See Flash a card with balena Etcher for the steps.
- Insert the card back into your board.
- Power on the board.
Caution
Reflashing the exact same image file wipes the card’s saved settings. Build or download a new image first, even for a same-version reflash, if you want your settings to survive.
See Why credentials survive a reflash for the full explanation of why this happens.
Once the board is back up, confirm it started correctly. See Is it healthy?.