Mine is 2025.4.2
It is USB 2.0
Can you provide a photo of the device connected to the Raspberry Pi 5? Also, may I ask which platform you purchased the Raspberry Pi 5 and dongle from?
Based on feedback from other users, I believe the core issue stems from electromagnetic interference (EMI) generated by the Raspberry Pi 5 itself, requiring the use of a USB extension cable (minimum 0.5m recommended) to sufficiently distance the dongle from the device.
Reference: www.reddit.com/r/sonoffdongle
Thank you so much this worked!