Dead On Arrival
-
- Posts: 5
- Joined: Fri Jul 07, 2017 7:30 pm
Dead On Arrival
When I connect the USB cable, all of the lights flash once, then go out. That's all I can get it to do. Seems totally dead. Computer does not see it. Is it DOA? If so, how do I go about getting a replacement?
Re: Dead On Arrival
The normal behaviour of a pyboard (PYB or PYBLITE) is to flash the green LED very briefly when it starts up. If it doesn't do this then it could be broken.
Try doing a factory reset by following these instructions: http://docs.micropython.org/en/latest/p ... reset.html
The board should appear as a USB flash drive on your PC. Note that some USB cables are "power only" and don't send data through, so you could try a different USB cable if it's not working.
If none of the above work then please contact the place you purchased it from to get a replacement. Purchases from https://store.micropython.org should contact the email address: contact -at- micropython.org
Try doing a factory reset by following these instructions: http://docs.micropython.org/en/latest/p ... reset.html
The board should appear as a USB flash drive on your PC. Note that some USB cables are "power only" and don't send data through, so you could try a different USB cable if it's not working.
If none of the above work then please contact the place you purchased it from to get a replacement. Purchases from https://store.micropython.org should contact the email address: contact -at- micropython.org
Re: Dead On Arrival
Try connecting BOOT to 3.3V, then plug in a USB cable. Your PC should see an STM32 device in dfu mode. If so the board is probably ok and you can reload MicroPython with a dfu utility.
Also test you USB cable with another device, eg phone, and make sure you can see the device on your PC.
Also test you USB cable with another device, eg phone, and make sure you can see the device on your PC.
-
- Posts: 5
- Joined: Fri Jul 07, 2017 7:30 pm
Re: Dead On Arrival
The first 3 cables I tried were either defective or just charging cables. I tried a 4th one and everything worked. Sorry for the false alarm.
PS Pleasantly surprised that my call for help was answered so quickly. This must be a great forum!
PS Pleasantly surprised that my call for help was answered so quickly. This must be a great forum!
- pythoncoder
- Posts: 5956
- Joined: Fri Jul 18, 2014 8:01 am
- Location: UK
- Contact:
Re: Dead On Arrival
I got caught out by a "charging cable" the other day; never knew they existed. These things lurk in dark corners patiently awaiting their next victim
Peter Hinch
Index to my micropython libraries.
Index to my micropython libraries.