Firmware upgrade issue, Kies not working and volume up broken

So basically I tried to flash an older firmware on Odin but it failed and now when I turn on my device I get the message 'Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again.' however Kies just says Connecting... and doesn't connect to my device and the volume up key is broken so I can't even get into recovery moed to do a full wipe. Someone help please, I know this is a ridiculous situation but please do your best!