LoPy connection error via pymakr and pycom upgrade
I have recently gotten my LoPy4 with Pysense expansion board and have been successfully working with it.
However, at some point I messed up a program and had to do a safe reboot. Since then nothing really works anymore. When I connect the LoPy via USB it is clearly found, e.g. using
lsusbin terminal I see:
Bus 001 Device 022: ID 04d8:f012 Microchip Technology, Inc.
The same is true for Pymakr in Atom. However, after automatically trying to establish a connection I get the error:
Searching for PyCom boards on serial... Connecting to /dev/ttyACM0... Connection error: Error: timeout
Nothing I've tried so far solved that problem. I also don't seem to get into safe boot. If I try to use the Pycom Upgrade Software I get the following error at the end:
Can I somehow do a hard reset or something?
Thank you already in advance!
Update: I managed to get the device to do a hard reset and select the factory firmware by connecting P12+3v3 for 7-9 seconds. The LED flashed green, flashed green faster and then again green very fast. Afterwards, I disconnected the device. However, I still get the same
connection error: Error: timeout.
What is different now, is that I can run the Pycom Upgrade tool and it detects the device and performs an update:
But even afterwards: I can't access the device via Pymakr due to the same error.
Has anybody another idea what I could do now?