I also purchased a SPX Power Xpress about 5 years ago for my 2012 iMIEV. It has worked great for that period of time. A couple of months ago I purchased a low mileage 2014 iMIEV and went to charge the new car with my Bosch SPX Power Xpress. To my surprise the SPX Power Xpress wouldn't connect and just kept faulting. I called their customer service line and they suggested that I take the car to my Mitsubishi dealer to make sure there wasn't anything wrong with the car, even though the car charged on every other Level II EVSE, I decided to do it and find out if there were any firmware updates for this issue. The dealer talked to Mitsubishi after trying to apply the firmware update apparently for an similar issue with Clipper Creek EVSEs. Mitsubishi says there is nothing wrong with the car, but wouldn't elaborate on why there is some technical difference between the 2012 and 2014. I again called Bosch customer service, again and as of now they have not responded with any suggestions or solutions. I also will be parting with my very expensive Bosch Power Xpress EVSE shortly and probably won't ever be purchasing any new Bosch products, even though I have been a fan of their products for many years.
Silver Mitsubishi 2012 iMIEV w/ 46K miles
Blue Mitsubishi 2014 iMIEV w/ 9K miles
British green Toyota 2003 MR2 Spyder w/ 120K miles
Magnetic Grey Toyota 2015 Prius C Four w/ 20K miles