: Many of these devices leave port 5555 wide open, potentially allowing hackers to take control of your device over your network.
If you are using a device for industrial work (like those from Intellicomm ), it is likely a secure, purpose-built tool.
The outdated security patches and lack of Google certification are not minor inconveniences; they are fundamental security flaws. An "uncertified" device means your device, and the data on it, does not meet Google's baseline security requirements. It is a device without Google's seal of approval, and you should treat its security posture as being much lower than that of any mainstream phone or tablet.