OK just received my OSMO Mobile 3, my first DJI product, and the issues with the MIMO app not working are a bitter pill when I was SO EXCITED about getting this product!  Here is the low-down.
My phone:  Android - Motorola Moto e5 play
Android version: 8.0.0


*The OSMO Mobile 3 unit appears to be working fine. I fully charged it, rubbed my hands together in glee and set about attaching the phone.  Then the pear began to take shape...

The problem:

• MIMO sees the OM3 in Bluetooth
• I press the onscreen "CONNECT" button
• Changed to white device screen while the Bluetooth magic happens, seems to work fine to that point
• REturns to the home screen and now the "CONNECT" button is replaced by "CAMERA"
• I press "CAMERA" and for a couple of seconds, the camera screen appears but then returns to the MIMO home menu and is no longer connected
  

What I've tried so far:

• Looked for a solution to issue on forums with no luck finding a decent fix (I did get some ideas but that is about it)
• Turned off Mobile 3 and phone and restarted while grumbling expletives - no change
• Reset all connections (WIFI, Bluetooth)  - No change
• Prayed to the DJI Gods - ivory tower cretins did not answer, tsk tsk (joking...)
• Uttered more expletives and then set about writing this gem of a REQUEST FOR ASSISTANCE
  

Help me DJ-ONE your my only hope!

Hi XTasey, I have replied your another post in Service sub-forum, please keep us updated there, thank you.