1.If IPC current version is already 3.4.0 or 3.4.1,then use 3.4.2 FW to update directly.
and after 3.4.2 update successfully then use the UpdateTool to update kernel one more time.If you don't update kernel,maybe can't get image,thanks.

2.If your IPC is before 3.4.0 version which maybe 3.3.5 or 3.3.4 something like that,then please go to Folder "V3.3 to V 3.4.1" and find the FW according to your model to update to 3.4.1 version first,and then follow the above 3.4.2 process to update IPC to 3.4.2 version again,thanks.