How to reset the device?

You can't reset the Watchy v2 with a button combination. You need to either:

• Power cycle the device: disconnect usb and the battery then plug it back in
• Use esptool from your PC, for example like that: esptool chip_id. You need to install it, look here: https://github.com/espressif/esptool/releases
• Use a web tool described here and click the reset button

Keep in mind

• Use a usb cable with data lines
• Use a USB 2.0 connection (3.0 won't work)
• You might need to install a driver if you are on windows, because it's 2024 and windows needs drivers for the chip CP2102 from 20 years ago. Use linux lol