I have the same problem after flashing with JDflasher.

log started. plugin compiled Jan 3 2008 / 13:54:44
create session object
used script: db2020.xml
turn off the phone, hold "c" button and plug usb cable
found EPIUSB1
connecting...
got response
protocol: 0301 baseband: 9900
cid detect
<- cid=53 color=unknown platform=db2020
error: OpenPlugin(connecttophone(getcid(cant find device info in xml [53unknown])))