MB STAR Software works with MB SD Connect Compact 4 for the latest Mercedes Benz cars and trucks, incl. new car of B 246, CLS 218, SLK172, etc. Have collected some common errors received from customer recently, and offer the corresponding solutions here. Error 1: When you run Xentry software with MB SD C4 , the following error will be reported “The data are faulty” and cannot do any function. Solution offered by Obd2tool.com engineer: Caused the error reason: Click the upgrade icon as shown in the figure below. The solution: 1. Please don’t click the upgrade icon, otherwise it will update. 2. Change the file name “AddOnCenter.exe” to “AddOnCenter.ex_”, then it will not update automatically. After modifying, restart the computer. 3.Free download the following link to fix. Xentrypatch202003: https://share.weiyun.com/5uIxwgI Password: eswr9a Size: 2GB Security: No risk! 4. After installing the Xentry patch to fix the error, please restart the computer and run Xentry so