03-09-2020, 04:58 AM | #1 |
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Keyless access break in
I thought I'd read in the forums that once the key is stationary, after a few seconds it, for want of a better phrase, turns off.
Someone broke into our car last night, and I can only assume they boosted the key. Thankfully nothing taken, and no damage. What do you do - do you put their keys in Faraday cages inside the house? Is there a "safe" distance? I thought to be honest the keys were far enough away. Any recommendations for a nice looking cage? |
03-09-2020, 06:52 AM | #3 |
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03-09-2020, 08:18 AM | #4 |
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03-09-2020, 08:33 AM | #5 | |
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03-09-2020, 09:34 AM | #6 | |
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Or does the key shutdown operates some other way, with the car acting as some kind of a key on/off master controller (in which case coding to change timeout would be entirely plausible).?
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03-09-2020, 09:39 AM | #7 |
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So I've been attempting to build on of these boosters and found some interesting information. So on the white hat hacker forum (the one i'm on is invite only) there are a couple issues with using the unit. First you must have the transmitter within 5 - 7' of the fob when using high end equipment. The other end near the car. This being said they were telling me why the hell would anyone use this at someone's home??? It is designed basically to be a two party system. Couple out to dinner man in side or near them at the restaurant man out side in the parking lot. Keep in mind just the booster cannot start the car that is another signal in most models. Either way still attempting to get one sorted to test at home but thinking about it my X5 is in the garage first and my key is over 80' away in a kitchen. So don't think it is my worry but thought the idea was cool enough to figure out!!
With that note some older models use a single RF signature and other use revolving so you cannot simply copy one and do it at another time you must copy all. There is a bit more to this part but i'm still learning.
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03-09-2020, 10:27 AM | #8 |
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Why are BMW not using the same system as this?
https://teamtalk.jaguarlandrover.com...-entry-attacks |
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03-09-2020, 10:28 AM | #9 | |
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03-09-2020, 11:17 AM | #10 |
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I have it on my 2017 Land Rover Discovery and I believe is used by other manufacturers.
The BMW and Mercedes system of trying to detect if a key has moved seems prone to issues. Guess I will have to get used to it when my X5 45e finally arrives. |
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03-09-2020, 11:40 AM | #11 |
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Just wrap your key in aluminum foil and attach a grounding wire from the foil down through your first floor and into the basement and then attach the wire to a metal rod that goes through your basement floor into the ground under it about six feet.
Ok, as is normally the case, manufacturers copy one another, so give BMW time and they will change the way their key transmission works. In the meantime, I have a key box that I lined with aluminum foil and that is where all the car keys are kept. However, when I leave the house, they are in my pocket, unprotected. Older keys only sent one signal to unlock and start, I think the X5 uses different frequencies for those functions. I do like the way Land Rover does it better than BMW but we have what we have and if our key is in our pocket when we are out and about, its always on the move and therefore always on. You can buy a faraday sleeve to put it in, some are a bit bulky, some are very thin and basically amount to the funny aluminum foil trick but look much better. So if you are in a densely populated area, an area with crime, maybe the faraday sleeve will help. https://www.amazon.com/s?k=faraday+k...nb_sb_ss_i_2_8 . |
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03-09-2020, 12:05 PM | #12 |
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You don't have to get used to it. It just switches of when not moving when you put it down somewhere. Once you pick it up it starts transmitting again and works.
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03-09-2020, 12:09 PM | #13 |
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I use a stainless steel sugar bowl as a shield. Looks perfectly normal on the kitchen bar as well.
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03-09-2020, 12:35 PM | #14 | |
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03-09-2020, 01:08 PM | #15 | |
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Mind you, seems to be working pretty well, I squeezed a phone in there once and tried to call it and it was completely dead. I know it's not the same frequency band, but it looks like a really REALLY bad antenna project to me :-)
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03-09-2020, 01:40 PM | #16 | ||
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03-09-2020, 02:37 PM | #17 | |
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This is a scary topic that I seem to be seeing more frequently in news articles. There is always some bad that comes with the good that technology brings us. I had a convertible years back and cut the wiring to the starter and put a switch in there and hid the switch, I did it to a fuel pump relay on another car I had. I wonder if I can eloquently add an on/off switch to my key fob |
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03-09-2020, 02:54 PM | #18 |
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This is absolutely scary, how should we keep our car safe?
Tho my neighbour all have better cars than me(like m5 comp, panamera turbo, Maserati and etc), I guess my car will not be the target for a while XD |
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03-09-2020, 03:04 PM | #19 |
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This is why i deliberately did not spec keyless entry. Many cars stolen in the Uk because of this. If they dont physically have the key, they cant steal the car. Simples.
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03-09-2020, 03:10 PM | #20 | |
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Be smart where you park it, take precautions with your key fob like this thread is talking about, don't leave it unlocked when out and about and think about safeguarding your garage so people can't open the garage door with a coat hanger, etc. I stopped driving my personal cars into NYC many years ago. Not solely because I thought they might be stolen but more likely due to 95% of the cars there are dented/damaged. If I need to go there, I rent one. You have choices in life and if it should happen that yours is stolen, the most valuable parts of it are your personal belongings inside...the car can be replaced. They make them every day. |
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03-09-2020, 03:15 PM | #21 |
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03-09-2020, 03:19 PM | #22 | |
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