Firmware
Embedded software on your TRMNL device.
By Ryan and 1 other2 authors13 articles
Device / WiFi troubleshootingUnderstanding error screens and connection issues.
Special FunctionsHow to set up custom behaviors on your device.
Enable WiFi Pairing ModeAdd or change your local network settings.
Manually flash firmwareHow to set your device to a specific firmware version
FW1.6.2 troubleshootingTips to roll back or force-update your device.
Put your TRMNL in "flashing mode"Recover a device with malfunctioning firmware.
DNS and Network Requests for Firewall WhitelistsIf there is a corporate firewall or even a private DNS filter on your network, like Pi-Hole, learn what domains should be whitelisted for TRMNL devices to retrieve new screens.
Sound During Screen RefreshIf your device is making an audible sound during screen refresh, such as a buzz or buzzing noise, here are some options to assist you if you wish to minimize…
What is fast refresh?What is fast refresh, and how it effects the way the screen flashes or flickers when changing content.
Tuning a washed out displayUsing temperature profiles to improve color and shadows.
QA Pass or Fail MessageYour TRMNL device is showing a screen that says either "Pass" or "Fail" and a further message about temperatures and QA test.
Customizing TRMNL with TailorCustomize your splash screen and logo with TRMNL Tailor, saved directly to the firmware without interfering with firmware updates.
WPA2 Enterprise WiFiConnect to secure WiFi networks at work or your basement bunker.