[Q] Defy, no sim, 3g mobile hotspot - Defy Q&A, Help & Troubleshooting

I'm trying to turn on just the mobile hotspot on my my defy so that I can use it as a wifi router. Not for internet access, I want interdevice communication in the car.
This is my old phone so no SIM but as I said I don't need internet access.
At the moment I'm unable to enable it as it doesn't detect an internet connection.

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Thanks for the suggestion. I can’t put the cam on the network, it doesn’t have an interface. All settings need to be adjusted through the phone. It’s a Xiaomi MiSphere.
Download booster, on the other hand, is worth looking into. I took a hiatus from Android for a while, just got back into it with the GS8 so relearning things.
If I understand your question correctly, the phone connects directly to the camera via WiFi. So as far as the phone can tell, the camera is a router with no internet connection.
I have the same problem.. I need to connect to my car via WiFi without internet connection, but I want to stay online via mobile network. It has worked well on my previous OnePlus 3 with the stock rom, but SGS8+ doesn't support this feature. I have tried to turn on "Keep Mobile data turned on" option in "Developer options", but it isn't helpful. The Mobile Data is on while connected to the WiFi, but the Internet connection doesn't work via Mobile network. Google Chrome and all other apps say, I am offline without the Internet.
Any solution?
Any possible solution for this issue?

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