Before updating a Meshtastic node, always create a backup of your important configuration and device information.
What You Should Note Before Updating
Before flashing a new firmware version, save or document the following:
Device Identity
- Public Key
- Private Key
- Direct Message Key
Path:
Radio Configuration → Security
Store these keys securely.
If they are lost, the node will appear as a completely new device in the mesh.
Channel Configuration
- Channel names
- PSK keys
- Primary channel settings
Path:
Radio Configuration → Channels
Recommendation:
- Make screenshots
- Save PSK keys separately
User Configuration
- Long Name
- Short Name
- Device Role (CLIENT, ROUTER, etc.)
Path:
Device Configuration → User
LoRa Settings
- Region
- Frequency settings
- TX power
- Modem preset
Path:
Radio Configuration → LoRa
Recommendation:
- Make screenshots before updating
Safe Update Procedure
- Export the node configuration from the Meshtastic app
- Save all device and channel keys
- Note the currently installed firmware version
- Flash the new firmware using the official Meshtastic Web Flasher
- Restore configuration if necessary
- Verify the node reconnects correctly to the mesh
Official Web Flasher:
Important Notes
- Never overwrite device keys unless you intentionally want a new node identity
- Some firmware updates may reset LoRa or region settings
- Always verify TX and RX functionality after updating before deploying the node again
