How to change the frequency to 125KHz for RWID-RC522?

Question

Arduino

I want to make a duplicate of the intercom key, but without looking at the RC552 frequency, I realized that it would not work. Is it possible to somehow reduce to 125kHz? If yes, please provide detailed instructions.

Answer 1

No. 125kHz / 13MHz systems are not compatible and have different antennas + always highly integrated chips, no rebuilding is provided

Answer 2

at 125 https://aliexpress.ru/item/1005001828948256.html or something like that.
But if you copy the key purely, you can take a simple cheap duplicator https://aliexpress.ru/item/4000311723984.html