How do you open a FTM 880

how do i open the device to access the usbc and sims, is there a special tool

Good day,

Thank you for the query.
The FTM880 casing is designed to be water‑proof and to meet IP69K requirements, so the cover is intentionally quite tight.
Please note that once the cover is fully clipped in place, it may require additional plastic pry tools to open it again without damaging the housing. We strongly recommend not using metal tools, as they can deform the casing or compromise the waterproof seal.
For detailed instructions, please visit our Teltonika Wiki page here:
FTM880 First Start - Teltonika Telematics Wiki
Also, please go through the short video guide on the page which visually shows how to open the device and access the connectors.

Kind regards,
Muhammad A