https://wiki.heltec.org/docs/devices/wifi-halow/ht-hd01/flase-firmware
Manually download firmware | Heltec Docs & News
If the firmware cannot be downloaded via the OTA configuration page, follow the steps below to manually obtain and install it.
download firmwareheltec docsmanuallynews
https://wiki.heltec.org/docs/devices/wifi-halow/ht-hd01/meshgate
Mesh Mode User Guide | Heltec Docs & News
The HD01 supports Mesh networking mode, and you can even use it to achieve relay functionality. However, please note the following three points:
mesh modeuser guideheltec docsnews