I have the language problem why this message is translated by a program, I hope the translation is correct to the best.
Let’s see, my phone is a Lenovo A850 + (DUAL SIM) and I installed Avast Mobile Security. From what I have installed I have the problem that when I restart or turn on or turn off the phone (not always) get a message which tells me that the phone has been stolen, below I have to put to override the message unlock key and to make use of it. The rest of the APP works perfectly.
Well if you comment that is correct, I hope that in the future be supported. Anyway when the problem I have to do is to power cycle the device and all sorted occurs. For now I have no other solution.
They are supported, but there can be issues, especially on closed platforms like Samsung, Asus or Lenovo - these vendors are implementing their own way how to handle radio&drivers for double SIM devices - so the antitheft is probably behave correctly, but you can see some strange behavior.