The Problem seems to still persist. Had the same issue and solved it this way.
Thanks @Dan-Perren and @teastain for the solution!

Hi,

can anyone hint me to a documentation or sth. for bluetooth (not BLE) for micropython on the core2? I seem not to find something. I found documentation and stuff for m5ble. But I need standard bluetooth and not BLE. I'm trying to port some .ino stuff to micropython but have a hard time to find something similar to "BluetoothSerial.h" for the M5Stack on micropython.

I'll be happy about hints. Maybe I'm just to dull to find sth.

Thanks and greetings.

@ajb2k3 Sadly didn't get it to work so far... But thanks anyways :-)

@ajb2k3 Awesome thank you. I'll try that

But how can I use M5Burner if its not able to connect to the core2? I can't reach it via com port and the program was flashed via Arduino ide. So there's no wifi etc. activated.
I updated the software several times without problems. Idk why it's not working anymore right now.

Hi guys,

I have an M5Stack Core2. I wrote a little program to it an run it for about 9 months. Now I wanted to adjust my code. Maybe translate it to micropython etc.
However, my computer can't identify the M5Stack anymore. Which means, I get no COM to use M5burner or Arduino IDE with. I tried to plug-in another m5stack, and it detects the COM Port on that one. But not mine. Therefore I cant use m5burner to reset the device. Is there any other possibility? I've seen in this post https://community.m5stack.com/topic/4176/m5stack-core-2-appears-to-be-bricked/4 that there doesn't seem to be any hardware button for it. Any other possibilities to factory reset?

Thanks in advance and greetings,
Raeph