My friend has the xNT NTAG216 chip, and he can unlock electronic door locks at his house, office, school and gym.
My apartment building has recently installed electronic locks, and I really want to do the same.
Here’s the thing: if I use a random external access card on the new lock, it reacts and declines my card with a red light and a sound. I invited my friend over to try the chip in his hand, and the lock didn’t react at all.
The key tag i received - that opens the door - has these specs:
Tag type: ISO 14443-3A
NXP MIFARE Classic 1k
Tech available: NfcA, MifareClassic, NdefFormatable
My friend has a key card (to access the gym) that has these exact same specs, and he is now using his NTAG216 instead of that key card.
So, why didn’t his chip trigger a response from my building’s new lock? We’re guessing the signal was too weak from the lock…
He told me he had met similar problems in the start, and that he had asked the people at the gym if they could increase the power/signal from the lock there. They did increase it, and then everything worked. He had done the same with the locks at the school, and they also complied. They thought the whole concept was really interesting.
The lock at my building is a ‘SmartAir Wall Reader Universal Design’. I asked the company that installed the lock if they knew if increasing the signal was even an option, and they said it was impossible. I don’t know if they know that for sure though, as they are only installing them…
What should I do? Are there any other chips I can try, perhaps with better ‘antennas’? Or have I misunderstood which chips are compatible with this lock? Should I use another chip? Can I do anything to improve the signal?
My girlfriend and I had an appointment scheduled for implanting the NTAG216 today, but cancelled when we saw that my friend’s chip didn’t trigger a response…
It’s not possible to replace the lock with something else, as it’s out of our control… but do anyone have any experience with this lock, perhaps?