How third parties generate valid pins for locked to the network devices

[TechLord]

Originally Posted by m0nix

To clarify i do not talk about the SIM card itself, the lock consist on the device itself, on hardware level strongly connected with low level software on the chip, like the bootloader or emergency download mode.

The answer remains teh same.
If the vendors tell the law enforcement that they CAN do it but they WILL NOT do it then there could be charges against the vendors (court cases etc).

If the vendors CANNOT do it (technically not possible) then the cops can do nothing.

MOST companies if they CAN do it, they would comply if they see a court order.

Regarding technical feasilibity and possibility, it can only be said with certainty if the exact make and the model of the device in question is known, as obviously, it differs from model to model even from the same company.