I just got this same error, downloading into a DP250 display.
Using Servicetool 6.0.8...
Internal: Download transfer failed
Error 267
Function: DownloadFile
It puzzled me, because the system just broke down,
recovery failed again and again.
And the CAN-bus connections were all ok.
Then I tried to recover with my laptop, with an older servicetool version 5.1.
and click click click, no problem. Display recovered.
Has anybody else experienced problem?
Regards
Jakob