At my college dorm, we use a certain type of lock in which we put our keys up to the lock, and it unlocks. I figured it used NFC, but I wasn't sure. Then I found this article.
androidauthority/forgot-your-olympic-hotel-room-key-use-your-s3-103325/ (NOTE: As a new user, XDA won't let me post outside URL's. Type in .com after droidauthority for the link to work)
I've got no clue what kind of hardware is in those locks, but I can say that it looks EXACTLY THE SAME as the locks used in my school. For me, that essentially confirmed they use NFC. I don't know who makes those locks, but my school uses the same looking handles and lock mechanism. When the card is held up to the lock, the lock flashes green. If I had to guess, the card acts as an NFC tag. When held up to the door, it will activate my card as any other NFC tag, verify it's me, and then let me in.
Using NFC on my phone, I was wondering if it was possible to do the same! From a logical standpoint (not a dev's standpoint), I would need to somehow steal the info off my card, have it stored in my phone as a usable format for the lock, and then I should be able to just hold the phone up to the lock to have it open!
You guys think this is possible? How would I go about doing it?
sorry that i don't have the answer, but i had this same idea! also wondering if it's possible.
Can.I.Haz.Jelly.Bean? said:
At my college dorm, we use a certain type of lock in which we put our keys up to the lock, and it unlocks. I figured it used NFC, but I wasn't sure. Then I found this article.
androidauthority/forgot-your-olympic-hotel-room-key-use-your-s3-103325/ (NOTE: As a new user, XDA won't let me post outside URL's. Type in .com after droidauthority for the link to work)
I've got no clue what kind of hardware is in those locks, but I can say that it looks EXACTLY THE SAME as the locks used in my school. For me, that essentially confirmed they use NFC. I don't know who makes those locks, but my school uses the same looking handles and lock mechanism. When the card is held up to the lock, the lock flashes green. If I had to guess, the card acts as an NFC tag. When held up to the door, it will activate my card as any other NFC tag, verify it's me, and then let me in.
Using NFC on my phone, I was wondering if it was possible to do the same! From a logical standpoint (not a dev's standpoint), I would need to somehow steal the info off my card, have it stored in my phone as a usable format for the lock, and then I should be able to just hold the phone up to the lock to have it open!
You guys think this is possible? How would I go about doing it?
Click to expand...
Click to collapse
I dont think these use the same frequency. Here in my office we use the HID Prox cards, but its not the same, the easiest way to know if you could do this is get the NFC tag reader software on your phone and try to read the card/key if it will see it I would think you might have a chance, if it doesnt see the card to read it, its not the same and you will not be able to do this.
wiz4769 said:
I dont think these use the same frequency. Here in my office we use the HID Prox cards, but its not the same, the easiest way to know if you could do this is get the NFC tag reader software on your phone and try to read the card/key if it will see it I would think you might have a chance, if it doesnt see the card to read it, its not the same and you will not be able to do this.
Click to expand...
Click to collapse
Lol first thing I tried when reading this thread, but no go, we use the HID Prox cards to. Tried almost every NFC app in the market.
sent from my iPhone killer
from what i've read...
doing what you're suggesting would pose a major security threat to all electronic door locks around the world. you're essentially duplicating your electronic key, which is not unlike duplicating an old school lock/tumbler key. unlike a traditional key however, this is an electronic key which means if you're able to duplicate it, you're also able to send/share it with friends around the world. in other words, we can set up a database of all the dorms / offices locks around the world and we can all have free access. doesn't sound like a pretty picture.
in reality, what our phones are capable of doing is READING the NFC tags. so if anything instead of thinking of your phone as the key, your phone can do the exact same thing as the lock, which is read the info off of the NFC tags. i know we have the ability to WRITE info onto NFC tags as well... but as others have posted there are issues of frequencies and i believe encryption which I HOPE makes this not possible for my security sake.
I'm sure if its physically possible(frequency wise) someone will make it happen. Its just like droid sheep, air crack, wifikill and the likes. Doesn't make it right but throw the technology out there and someone will make use of it.
sent from my iPhone killer using tapatalk 2
I was able to do this with bluetooth and my Samsung Note 3 on Windows7. Got windows 10 and *poof*, it's gone as a bluetooth service. Now I'm scratching my head trying to figure out if that was a function of the BT dongle software, Dell security tools, Windows 7, or what!? A little off topic (not-NFC), but I have the same functional objective.
hey guys,
i just got home and bought a "Broken" one X, it was laying in a cabinet and i asked if i could play around with it in the store.
after a while i got it to turn on, and it seems ok now, its charging and everything works, did not test the sim card yet though..
so my question is, what else should i look for?? is there anything i might have missed or did i just get lucky??
thanks for your time. Tim
Last night I finally setup android pay and thought I would use it on the bus this morning. I tapped and tapped and nothing happened so I quickly grabbed my bank card and used that. When I got to my seat a green tick appeared... So now I paid twice
I have a few questions if anyone can help?
- Is NfC quite slow to register when paying normally?
- Where is the sensor on the phone? Maybe I was tapping in the wrong place.?
- Does the android pay app need to be open when paying? I had it open but believe it should work with just phone unlocked.
- I have a thick rugged plastic and rubber case. Would that be an issue?
Thanks for your help any answers appreciated.
Since my first post I managed to get a coffee and into the train and think I have answered most of my questions...
- Slowness I think was just because it was the 1st time I had used Android pay. Subsequent payments are fast.
- NfC must be near the camera, works immediately when I tap there now.
- thick case is no problem.
- Phone works unlocked no need to open the app and displays a handy notification on screen for successful payment.
So I'm sorted and I'm not even in the office yet.
Not sure if buses hate me or the readers on buses are different but I'm finding NfC slow on buses in London. But great everywhere else?
You don't need to unlock the phone, just turn the screen on.
You've already answered your own questions, but yes the NFC chip is just under the camera and for me payment it's practically instant.
so I normally don't post on forums because I usually search in search and search and find the answer I'm looking for but I need some help from anybody in the community. So here's what's going on
I just got a switch and I found out you can actually use NFC tags to write amiibos to the NFC tags. It tells me that I have to turn NFC on and then follow certain instructions and then when I'm ready put the NFC tag on the back of my phone so it can scan and write. Here's where it gets a little complicated
I had to replace the back of my phone because I accidentally shattered the glass but it didn't have any problems when I replaced it I used the heat gun and I make sure I kept the adhesive on the device so that you know I could just replace the back...
so basically what's going on is my phone the bootloader is unlocked it is rooted and I'm running a stock rom. But I don't know if it's because of the unlocked bootloader or the root I tried hiding tagmo with magisk hide and still the NFC tag did not scan I've downloaded a couple of apps to see if the energy is working but here's the thing when my friend let me use her phone today she has a pixel 2 not rooted and not unlocked just completely stock I didn't even have to download tag Moe or anything I placed one of the NFC stickers on her phone and it read that there was an empty tag detected...
I kind of want to relock my bootloader because I have not been able to pay off a phone in almost 10 years and I'm just about to pay off this one and I don't want to have to you know upgrade and have this problem.. I just wondering if anybody has experience the same sort of issue, and how did you fix it? I really apologize for the long detailed explanation but Asperger's is a *****..
Hello guys, I have a really big problem from a while. Actually im not shure from when, but I noticed hat when I tired to use Note as navigation. Problem is that then phone find satelites, lock GPS signal for a while and then starting to loosing signal, resarching locking witch interwals around 5 second and finally shut down for a while.... so for job as navigation is not a best option. I was trying to find any kind of hardware bug. I cleane all antena, motherboard, replace even whole parts including putting different motherboard for testing - yeah I know I should make a copy, but changing board was looking a quicker option.
So I get to point when I know it isnt be a hardware problem... so where I should look for a solution?
concretcube said:
Hello guys, I have a really big problem from a while. Actually im not shure from when, but I noticed hat when I tired to use Note as navigation. Problem is that then phone find satelites, lock GPS signal for a while and then starting to loosing signal, resarching locking witch interwals around 5 second and finally shut down for a while.... so for job as navigation is not a best option. I was trying to find any kind of hardware bug. I cleane all antena, motherboard, replace even whole parts including putting different motherboard for testing - yeah I know I should make a copy, but changing board was looking a quicker option.
So I get to point when I know it isnt be a hardware problem... so where I should look for a solution?
Click to expand...
Click to collapse
Hi, this is due to the Broadcom BCM4752 chip used by Samsung and it occurred after 6 april 2019 GPS rollover. Samsung could fix this with fixed firmware, but Samsung didn't, and I guess Samsung won't. Most of the Note 2 series use this chip, and if there is no firmware update, there is no chance but to continue using it with a GPS signal losing problem.
We have discussed this issue in detail before, please read what is written in the thread below, it will help you. :good:
https://forum.xda-developers.com/galaxy-note-2/help/gps-problem-losing-satellites-t3923474
Thanks for such a quick reply, yeah I read it however I was hopping this is not the case... well still my two other devices work without problem, if such kind of problems appear I just reboot them and this resolvr problem. One of those devices work on Jelly Bean android... im wondering if this could be a solution? Anyone check that allready maybe?