Question Unlocking Modem

[Makatas]

First - sorry if this is wrong section for this kind of problem.
I have B525s-23a which is locked to my old card which contract ended long time ago. Even cards from same carrier doesnt work on it. Obviously i want to unlock it. I tried to find information online, but the problem is i cant find anything related to sim/nck etc. in the modem settings.

 

[COLGeek]

Have you contacted your wireless carrier about unlocking the device?

Otherwise....https://forums.tomshardware.com/threads/read-regarding-passwords-lock-codes-pin-numbers-etc.3515831/