Troubleshooting 70mai A810 (T800E) 4G Hardwire Kit – Persistent Flashing Red Light (Kena Mobile SIM)

[lilquack]

Hi everyone,

I’m looking for some help with my 70mai 4K Dash Cam (A810/T800E) setup. I live in Milan, Italy, and I’m having trouble getting the 4G remote monitoring to work.

The Setup:

• Camera: 70mai A810.
• Hardwire Kit: 70mai 4G Hardwire Kit (UP04).
• Installation: Done by a professional auto electrician.
• Status: Basic functions work perfectly. It records in parking mode, and I can connect via the local Wi-Fi hotspot to view footage.

The Issue:I recently bought a Kena Mobile SIM (TIM network, Italy) to enable remote monitoring. Despite my efforts, I cannot get a 4G connection. The LED on the 4G Hardwire Kit flashes red, while the manual/tutorials indicate it should turn solid green once connected.

What I’ve tried so far:

1. SIM Prep: Inserted the SIM into a smartphone first. I disabled the PIN code, verified that data/roaming works, and tested the APN.
2. APN Settings: I tried both the default TIM APN and the specific Kena Mobile APN (web.kenamobile.it).
3. Connectivity: When I start the car, the dashcam still only works via the local hotspot; the 4G remote features remain inactive in the app.

My Questions:

• SIM Compatibility: Could the issue be that it’s a "Voice + Data" SIM rather than a "Data-only" IoT SIM?
• Installation: Is it possible the kit is wired incorrectly, even though the parking surveillance mode is working fine?
• APN/Settings: Are there any specific settings I might be missing within the 70mai app to "force" the 4G activation?
• 5G SIM in 4G Hardware: The SIM is a 5G-enabled card. Could this cause handshake issues with the 70mai 4G modem?

I've been trying to fix this for a week with no luck. Any advice or suggestions would be greatly appreciated!

Thanks in advance!