Closed va7wv closed 1 week ago
Try a different USB cable. If that does not work, try another USB cable. repeat till you succeeed. Ferrite loops may also help.
For anyone in the future, it was the USB hub that was the issue. The quality of the USB cable may be an issue as stated. I used an Anker brand USB-A to USB-C cable. I was able to see the Heltec V3 using "lsusb", but this wasn't enough.
Under Linux, use "sudo dmesg" to ensure that you can see the Heltec V3 being enumerated properly, something like the following. If you don't get this, try going straight to a USB port with a decent quality cable. I get the drift that these Heltecs are sensitive.
5757.709210] usb 1-1: new full-speed USB device number 8 using xhci_hcd
[ 5757.866146] usb 1-1: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
[ 5757.866152] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5757.866154] usb 1-1: Product: CP2102 USB to UART Bridge Controller
[ 5757.866156] usb 1-1: Manufacturer: Silicon Labs
[ 5757.866158] usb 1-1: SerialNumber: 0001
[ 5757.902231] usbcore: registered new interface driver cp210x
[ 5757.902254] usbserial: USB Serial support registered for cp210x
[ 5757.902293] cp210x 1-1:1.0: cp210x converter detected
[ 5757.904839] usb 1-1: cp210x converter now attached to ttyUSB0
Category
Hardware Compatibility
Hardware
Heltec V3
Firmware Version
None
Description
Brand new Heltec V3 off of Amazon. Tried the web flasher initially without success. Python esptool.py can see the device plugged in without any issue. Using Linux.
I can read that it is an ESP S3 right off the chip. I am trying Heltec V3 firmware files across all the releases, nothing works.
install bash script output:
esptool.py output:
lsusb output:
Relevant log output
No response