The TachoSafe Connect device attempts to search for and connect to an available mobile network after a tachograph/driver card download, or after a USB is plugged in (if the device contains uploadable files). 


During this process, the LED indicator shows file uploading status with a blinking cloud icon, as detailed below: 


File upload after a driver card/tachograph download

File upload in case of USB being plugged in


If the network conncetion (which can take up to 3 minutes)/file upload fails, the LED indicator will show the following statuses:  


Network connection/file upload failed after driver card/tachograph download

Network connection/file uploading failed in case of USB being plugged in



If these indications appear frequently, it means a connection or file upload error has occurred. In this case, plug the device into a computer (if it isn't already), open the "Log_file.txt" file, and look for the source of the problem.

If you see the following messages in the log file, it indicates a problem with your local mobile network provider:

  1. 'RSSI: unknown' 
  2. '0 - Not registered, MT is not currently searching a new operator to register to' (appearing multiple times without susbsequent 'Registered...' message) 
  3. 'Registered home network.(without subsequent  AT+CGDCONT, AT+CGACT, AT+HTTPINIT message) 
  4. 'The network registration failed. Check if you have:...'
  5. 'The modem detached from the packet domain service.'
  6. 'The defining of the packet domain protocol context denied.'
  7. 'The packet domain protocol context deacivated'

If you encounter the messages above, please check with your local mobile network provider and notify us of any network outage by emailing support@tachosafe.ro.


For any other file uploading issues, please download the "Log_file.txt" and send it to us via email to the address provided, or create a support ticket here for assistance.