T-Echo
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T-Echo nonreactive with red LED pulsing
My T-Echo with Meshtastic 2.3.15 was running fine but in the middle of the night it just froze. No more Bluetooth connection and the device doesn't react to any button presses. The display just shows whatever it showed when it froze.
The left of the two red LEDs makes two pulses every 5 seconds and that's it. I tried the following without success:
- Flashing the latest stable version of Meshtastic. The device can be brought into DFU mode with a couple click of the top button and it accepts the firmware via file copy. But it doesn't change the behavior of being completely nonreactive.
- Trying to update the bootloader doesn't work either, the device accepts the
.uf2
file, disconnects, and nothing happens. - Disconnecting the battery for a couple of hours, reconnecting it, flashing the bootloader, and flashing Meshtastic.
Any idea how I can rescue the device?