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Xinyuan-LilyGO / TTGO_TWatch_Library

MIT License
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Cannot download the bin by using ESP32 Download Tool #161

Closed xiaomi2503 closed 2 years ago

xiaomi2503 commented 2 years ago

My watch is 2020 v2 I try to download "T-Watch2020-V2.bin" by using ESP32 Download Tool. But the tool only shows "SYNC waiting for power up". I have tried to push the button once/5sec/10sec but no response. After times is up, shown ESP32 chip sync error. Anyone can give me suggestion.

LilyGO commented 2 years ago

The watch integrates an automatic download circuit. If this happens all the time, there may be a problem with the automatic download circuit.

xiaomi2503 commented 2 years ago

I just bought 2-watches. Both of them are the same which cannot be download the firmware by using ESP32 Download Tool. They are QFN24 Version with CH9102F. Is there any difference with CP2104 version ? Is there any method to RESET the CPU from the TOP of PCB of the watch ? I cannot found the RESET pin (CHIP_PU) of ESP32 to make power up sync.