To copy the door opening keychain to your phone, you can use one of the following methods.
First, you can use your phone's camera function to take a picture of the keychain and save it to your phone's album.
Second, you can use a specialized key management app, such as KeyMe or KeyHero, to upload a photo of the keychain into the app and create a digital copy.
These applications typically use advanced algorithms to scan and copy the shape and nicks of the key.
Finally, you can also take the keychain to a professional key copying shop, which usually has advanced key copying equipment that can copy the keychain onto your phone. Whichever method you choose, make sure to secure your phone and copied key information to prevent loss or theft.
To copy the door opening keychain to a phone, you first need a phone application that can copy the RFID signal, such as the NFC toolbox.
Then, after opening the app, hold the phone close to the RFID chip sensing area on the door opening keychain, and wait for the app to read the RFID signal, which can be saved on the phone. In this way, the RFID signal of the simulated door opening key chain can be used to open the door lock or swipe the card to enter the place that requires authorization. It should be noted that when using this function, you need to obtain authorization first, otherwise illegal acts may be involved.