@DUDU-Meng @dudu-lai i've just received my Dudu7 headunit back from Makede in China as it had a hardware fault with the 360 camera integration, i've just reinstalled the headunit back into my van and it works fine now, it has the latest OTA update. however my canbus is saying unknown version. previously to sending it back, i had the version you provided within this thread, however when i try to install that version now i get the same issue that Slavus had, i have the upgrade file in the local directory, but when clicking confirm in the popup message, nothing happens at all. any ideas how i can get this to work? Currently the SWC controls, and indicators aren't doing anything. attached is my canbus 
this was what my CANBUS was before i sent the unit back for repair for the camera issue
this is what is there now
