pvvx/ZigbeeTLc

Flashing LYWSD03MMC with USB-UART - the right way

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TeHashX commented

Hi, I updated 2 devices with wrong firmware through OTA and are in constantly bootloop #85
Tried to flash with usb-uart web tool https://pvvx.github.io/ATC_MiThermometer/USBCOMFlashTx.html but now the screen is blank.
My adapters are not supported? The used schematic is wrong? Tried swapping RX with TX, same thing.
ftdi-a
I also tried with Voltlink adapter without success.
PXL_20240421_080131990
I'm not sure if it's the right place for asking but please advice.
Thank you!

pvvx commented

If with a resistor between RX and TX then it's TLSR825xComFlasher.py

https://github.com/pvvx/TlsrComSwireWriter

There is an example here:
Flashing firmware with USB to UART

  • 👍1
TeHashX commented

Thank you! With TlsrComSwireWriter I recovered both devices 👍
The schematics was ok but not the web flasher.