To update the software (firmware) in a SAGEMCOM F-ST 3890 V3 Delta
Wait for Completion: Do not turn off the router while it installs the software; it will likely reboot automatically once finished. Recommended: Automatic Updates Update Software in SAGEMCOM F-ST 3890 V3 Delta
The Procedure:
Log in using the admin credentials located on the same bottom sticker. To update the software (firmware) in a SAGEMCOM
Step 2: Locate the Firmware Update Section Open a web browser on your computer or mobile device
http://192.168.1.1 (or the IP address printed on the device's label).