I just updated the firmware of my "LS-8P Addressable LED Strip Controller (Digital Microphone Built in)" to official WLED_0.15.0_ESP32.bin (sha256: 9943fb09592dab19ff5e482b1a03f284927ddf64af5d74fedac9eea23de5e408).
Now it doesn't boot any more. It seems dead. No relais click. No LEDs light up. The button does not do anything.
Did I use the wrong version? I'm pretty sure I came from WLED_0.14.4_ESP32.bin, so same architecture. I left the SR fork of WLED behind already a year ago.
If I need to flash using a serial adapter, which firmware version should I use? Does the controller have easily accessible pins for flashing?