It looks like it sees the mouse based on the logs:
[ 3.317302] usb 2-1.1: new low-speed USB device number 3 using ehci-platform
[ 3.433323] usb 2-1.1: New USB device found, idVendor=1c4f, idProduct=0034, bcdDevice= 1.10
[ 3.433367] usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3.433385] usb 2-1.1: Product: Usb Mouse
[ 3.433399] usb 2-1.1: Manufacturer: SIGMACHIP
[ 3.439302] input: SIGMACHIP Usb Mouse as /devices/platform/fe3c0000.usb/usb2/2-1/2-1.1/2-1.1:1.0/0003:1C4F:0034.0001/input/input2
[ 3.440561] hid-generic 0003:1C4F:0034.0001: input,hidraw0: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-fe3c0000.usb-1.1/input0
Can you share the command(s) that you used for the firmware update? Or was this just the armbian-firmware package getting an update?