Hello Gianfree-182,
Good day. Thank you for the question.
You may send the sdformat command via SMS as follows
With username and password : <SMSlogin><space><SMSpassword><space>sdformat
Without username and password : <space><space>sdformat
We will need to get the IMEI of the device so we can check your FOTA WEB. My suggestion is that you go through this with our support engineers. However, you will need to raise a VIP Helpdesk or contact your Sales Manager to get the engineers to assist you on this matter.
If you don't have any contacts with our Sale managers, please contact with them on our official website https://teltonika-gps.com/ and click on the "Contact Us" button. When you click, please fill the form and submit it.
Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with description of your situation to info@teltonika.lt
Thank you for your understanding.
Kind regards.