Monoprice Select Mini not detected

[DanMono]

Hi ,

I am having problems connecting my 4 year old printer to a Windows 10 laptop. It was actually working, until a few days ago. The computer is picking up the USB connection, but doesn't recognise the printer. I have tried different versions of Cura (15.04.2) and also Repetier.

I get this error message when I try to connect :

"Changing monitoring state from 'Offline' to 'Opening serial port'
Connecting to: COM3 with baudrate: 115200 (configured)
Unexpected error while connecting to serial port: COM3 SerialException: 'could not open port COM3: [Error 5] Access is denied.' @ machineCom.py:_monitor:332
Found no ports to try for auto detection
Changing monitoring state from 'Opening serial port' to 'Error: Failed to autodetect serial port.' "

I also tried manually adding the printer to the printer list, but its still not detected.



The other problem is that I can't use an SD card. The card loads to 99% - then stops and won't print, I've tried several different SD cards.


Thanks in advance.