Cannot update i level. Back end error.

[garethbrunt]

Hi all,

I have a 2012 F10 528i that has never has an i level update. I have downloaded and installed the 4.39.20 version of ista from the important threads section. I am able to read and clear faults but unable to update software. The update shows up and shows 62 actions to be performed however when I go ahead I get the following, as per the attached picture. Connection is via an ethernet cable with a usb convertor  connect to the latop. Is anybody able to help me with this please.

Many thanks in advance