Kessv2 error speed change is not carried out

Kessv2 error speed change is not performed , hi to all and thanks in advance for who will help me, I am a beginner and I'm trying to make an egr off on a Panda 4x4 1.3 Mtj unit mjd6jf hw02 read by obd without problems with kessv2 files 448 kB then I changed with ecmtitanium and I was trying to rewrite, I put the files changed then kessv2 asks me for the original writing begins, and I hangs with this error speed Change is not performed do not know what it is and still the car part and has not suffered any damage , I checked in a hex that hw will return with the label ok, but those who I can help ?thanks

hi...probably you have to change the communication speed of the kess

Thank you for the response,but being a beginner I don't know how to set the speed and then how do I know if I have to set up more fast or slow, the kess does not automatically

hello..I tried to check in kess..for this ecu is not the option to change speed..
to resolved then?

Unfortunately no because I didn't want to try again for fear of the block is still the same ecu in bdm, but I did get it I wanted to Understand this error, because it is clearly making them via OBD is faster and I don't have to dismantle the ecu