Hello, I’m new here. The Suzuki Vitara is first approved in early March 2018. It was delivered with the Bosch SLDA Navi. Map material was first on the SD card from 2017. I then replaced it 2 times with younger SD cards, last in 2019. Some roads in my area were only shown. Radio reception is possible with FM and AM, DAB is not installed or built in. I don’t know that any closer. After inserting the SD card with the card upgrade Here 20 21 the navigation system does not work. The booting is stopped in the first 10 seconds and constantly tried new. It is still the software version 0850_160812 installed. Now you know the starting situation. The questions that concern me are now: 1 Can one extend the “old part” to DAB reception? 2 Why can I not install the card upgrade kit Here 2021? 3 Is it possible that an update of the software version to 1860.2_180613 or later is necessary to upgrade the card to i Install and use? 4 Can one buy a disk with the 1860.1 or 1860.2 software version? For each of these questions I would like to have a detailed answer. What I have already tried to install the card update from all “thinkable” situations on the device, no success. Preparing a USB stick with the newer software version. However, this has already led to problems when unzipping, because not all files were transferred.