← Standard web flasher

Heltec V3/V4 prerelease flasher

Prerelease MeshCoreNG firmware for all Heltec V3 and V4 variants
Use Chrome or Edge - Web Serial is not supported in Firefox or Safari.

1 Choose firmware type

2 Select your Heltec board

Select a firmware type first.

3 Choose prerelease version

Select a board first.

4 Connect & flash

Plug your Heltec board into USB, then press the button below.

5 First use

  1. Connect via USB serial at 115 200 baud (e.g. config.meshcore.io).
  2. For bridge firmware: set bridge.enabled on
  3. Use any MeshCore client to connect: app.meshcore.nz

Full documentation: MeshCoreNG docs • Prereleases