The firmware versions you are asking for, other than 03.01.00.Rev.14, are not publicly released, so they may not be available for direct download. For such versions, you will need to create a support ticket, and the assigned engineer will provide the required firmware if applicable.
If your target version is 03.01.01.Rev.15, you can directly update to the latest version as mentioned below:
03.01.00.Rev.14 → 03.01.01.Rev.15
However, it is recommended to first update only a few devices and observe their performance. If everything works properly, you can proceed with updating the remaining devices.
For creating an HD (HelpDesk) ticket, you may contact your Sales Manager for assistance.
If you do not have contact details for a Sales Manager, you can reach us through our official website:
Click on “Contact Us”, fill in the form, and select “Vehicle Telematics” as the topic before submitting.
Alternatively, you can send an email describing your situation to Teltonika IoT support.
When contacting us, please provide the following details:
IMEI
Device logs
Configuration file
International GSM number
Current firmware version
Any other relevant information
You may also follow these recommendations when submitting the request: Recommendations for filling a query description – Wiki Knowledge Base | Teltonika GPS