As for your case, could you please delete Benz software and download it again to have a try? If it still can't work, please  provide us system version and send email to support@autel.com

As for this case, please provide us the following information and send to support@autel.com.

1. Maxisys-About page
2. System Setting-About tablet
3. Please download this logservice.apk to your device. https://www.sendspace.com/file/rj7h42

Please save the attached LogService.apk to Maxisys and then install this app to collect the log for our anaylysis.

1)      Click Start to record the log. Then open Maxisys app and run it, after the problem appeared, back to Logservice, please click Stop.

2)      Then go to ES File Explorer-> SD card-> Scan->Log, please send us these log files by email.