Recently purchased a couple Heltec Wireless Paper devices using the AliExpress link on the supported devices page. The devices run the included demo software without issue but once the Meshtastic firmware is loaded the display does not work. Nothing is displayed during startup or operation other than the Heltec Automation logo. The devices are otherwise functioning and can be successfully setup using the web-USB-serial interface but still nothing on the screen. Have tried every version of firmware-heltec-wireless-paper-X.X.X.xxxxxxx.bin available using the wipe and reinstall option. Have tried both the ESP32 web installer and the python firmware installer. Is there something I’m missing to get the display working?
No ETA. Last I heard a device is being sent to one of the developers that has more experience with e-ink displays to see if they could get it going as the developer that implemented the initial support was unable to do so.
Still no joy. Tried the latest firmware on two different units.
Here’s the details.
Purchased two Heltec Lora Wireless Paper ESP32-S3FN8+SX1262 in August 2023 using the link on the Meshtastic website. https://www.aliexpress.us/item/3256805512013372.html
Both arrived with Heltec demo firmware and the displays worked as intended.
After flashing with the Meshtastic firmware the screen has only the Heltec logo. There is no other screen activity.
Using the online flash utility https://flasher.meshtastic.org/
Selecting Heltec Wireless Paper
Uploading firmware-2.2.20.f2c04c5.zip
Selecting Full Erase and Install
Is there anything else I should be doing with these to get the display working?
Unfortunately the two V1.1 boards I have the display is not working. Tried version 2.2.20 as both upgrade and fresh install. The display remains inactive. The software and device is otherwise working. Both boards run the Heltec display demo software without a problem. Oh well. I’ll keep trying as new firmware versions come out.