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Xinyuan-LilyGO / LilyGO-T-SIM7000G

LilyGO T-SIM7000G
https://pt.aliexpress.com/item/4000542688096.html
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A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header #188

Open owardC opened 1 year ago

owardC commented 1 year ago

I have 2 boards that have failed to upload code using Arduino IDE. They were working perfectly fine in the beginning then I got this error:

"esptool.py v3.0-dev Serial port COM18 Connecting......................................___An error occurred while uploading the sketch

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header"

I have looked online and the solution is to press the boot/enable buttons and it should be able to upload code again. The problem is this board doesn't have either of those buttons... I saw someone solder a 10uf capacitor directly to the en pin on the esp32, I tried that and it didn't work. Can anyone help get these boards back to life and upload code on to them again? I see there is a BOOT_CFG_VDD_EXT pins on the bottom of the board, can I use these? I can't find documentation on what those pins do.

vlszabolcs commented 1 year ago

Hey! Plug off the board. Connect together IO0 and a GND pin then plug on the PC and try upload the sketch.