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Trying to unlock your car with a cell phone doesn't work

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m6onz5a

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Dec 17, 2009, 11:27:07 AM12/17/09
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A lady just came in my work and she just locked her keys in her car.
She mentioned about that trick where you can take a keyless entry and
through the cell phone you can open the locks. We had her hubby press
the button several times from his house while he held it next to the
phone while I held my cell phone next to the door lock.. Nothing,
nadda...Maybe it only works with certain types of keyless entry locks,
or it's one of those urban myths.

Heron McKeister

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Dec 17, 2009, 11:34:30 AM12/17/09
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fred

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Dec 17, 2009, 12:48:58 PM12/17/09
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m6onz5a <cor...@comcast.net> wrote in
news:40258c6b-fecb-4141...@k19g2000yqc.googlegroups.com:

That would require the key fobs to work on sound within the range of
human hearing and/or cell phones to work. They don't use sound, so it's
never going to work period. All remotes either use radio waves or
infrared. And when they use radio waves it's in a completely different
frequency range than cell phones use.

Scott Dorsey

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Dec 17, 2009, 4:26:10 PM12/17/09
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In article <40258c6b-fecb-4141...@k19g2000yqc.googlegroups.com>,

Can you think of any reason why it _should_ work?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Tim Wescott

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Dec 17, 2009, 9:22:06 PM12/17/09
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Radio = magic.

Key fobs = radio.

Cell phones = radio.

Therefore cell phones and key fobs are magic.

And magic will let you do _anything_.

Haven't you learned _anything_ from watching direct-to-cable movies?

--
www.wescottdesign.com

cuh...@webtv.net

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Dec 17, 2009, 9:53:30 PM12/17/09
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Once or twice on tv news, they said the crooks have electronic devices
that can open those fancy electronic car locks.They can unlock/open the
doors and trunks,,, and probally much more.I don't trust any kinds of
electronic locks at all!
cuhulin

Steve W.

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Dec 17, 2009, 10:34:21 PM12/17/09
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The problem with the electronic locks are that they are VERY limited.
Note that, although they usually show the numbers 0-9 there are only 5
buttons. That means you only have 25 possible combinations. Then you
look at the buttons for wear/dirt and it gets even easier. Plus it
doesn't really matter because if they are going to grab a car for parts
they will likely just smash a window and go. Or tow it away on a
flatbed. With a couple of guys in "official" looking gear nobody gives a
second glance.

--
Steve W.

cuh...@webtv.net

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Dec 17, 2009, 11:14:27 PM12/17/09
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My computer Gyration mini keyboard and my computer Gyration mouse are
Radio Controlled. www.gyration.com
cuhulin

Paul

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Dec 18, 2009, 2:01:17 AM12/18/09
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In 50 years, humans will be radio controlled.

m6onz5a

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Dec 18, 2009, 7:03:39 AM12/18/09
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On Dec 17, 4:26 pm, klu...@panix.com (Scott Dorsey) wrote:
> In article <40258c6b-fecb-4141-a47e-7a4769c18...@k19g2000yqc.googlegroups.com>,

>
> m6onz5a  <corv...@comcast.net> wrote:
> >A lady just came in my work and she just locked her keys in her car.
> >She mentioned about that trick where you can take a keyless entry and
> >through the cell phone you can open the locks. We had her hubby press
> >the button several times from his house while he held it next to the
> >phone while I held my cell phone next to the door lock.. Nothing,
> >nadda...Maybe it only works with certain types of keyless entry locks,
> >or it's one of those urban myths.
>
> Can you think of any reason why it _should_ work?
> --scott
> --
> "C'est un Nagra.  C'est suisse, et tres, tres precis."

Yeah I saw a youtube video on it so it MUST be true. ;)

Tegger

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Dec 18, 2009, 7:29:50 AM12/18/09
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Paul <P...@main.com> wrote in news:hgf9bi$ch6$1...@news.eternal-september.org:

Maybe we already are...

--
Tegger

Don Stauffer

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Dec 18, 2009, 10:11:01 AM12/18/09
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I think it works with OnStar. If you have OnStar you can call them on a
phone and they can unlock the car.

m6onz5a

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Dec 18, 2009, 4:45:59 PM12/18/09
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yeah they can do everything with onstar. diagnostics and all..

fred

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Dec 18, 2009, 4:57:07 PM12/18/09
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Don Stauffer <stau...@usfamily.net> wrote in
news:4b2b9b81$0$16048$815e...@news.qwest.net:

That's because OnStar is connected to the car physically. Not the same
thing at all.

Tegger

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Dec 18, 2009, 5:48:22 PM12/18/09
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fred <fr...@bedrock.rock> wrote in news:Xns9CE5871...@127.0.0.1:

> Don Stauffer <stau...@usfamily.net> wrote in
> news:4b2b9b81$0$16048$815e...@news.qwest.net:
>
>>
>>

>> I think it works with OnStar. If you have OnStar you can call them on
>> a phone and they can unlock the car.
>>
>
> That's because OnStar is connected to the car physically. Not the same
> thing at all.
>


Actually it is much the same thing.

For door unlocking, the primary difference between a keyfob transmitter and
the OnStar transmitter is the operating range.

--
Tegger

M.M.

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Dec 18, 2009, 7:20:00 PM12/18/09
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Well, the frequencies are different. And the codes that are sent. They
are both radio but are still quite a bit different.

Tegger

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Dec 18, 2009, 8:34:08 PM12/18/09
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"M.M." <nob...@nowhere.com> wrote in
news:Q_UWm.1811$lV1....@newsfe02.iad:


They are both radio, and that's the crux of the matter.

It is not important what is "connected to the car physically" or isn't, or
what the frequencies/codes are, it's still a transmitted radio signal. And
you cannot transmit a radio signal via a cell phone in the manner described
by the OP (way back on Thursday).

--
Tegger

fred

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Dec 19, 2009, 1:01:09 AM12/19/09
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Tegger <inv...@invalid.inv> wrote in
news:Xns9CE5D128...@208.90.168.18:

If it's physically connected to the car in the right places you can do a
*lot* more things than any fob can do. The fact that OnStar is inside
the car led me to believe it was connected to the car. I've never had a
car with it. Don't really want it.


cuh...@webtv.net

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Dec 19, 2009, 10:03:46 AM12/19/09
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The name Radio comes from the name, Radius.I don't own a cell phone now,
but I used to own one, back in 1998 and 1999.I remember it said in my
cell phone owners/operators booklet that my cell phone is a Radio
device.If you own a cell phone, look around in your owners/operators
booklet and see what it says.There are many, many different kinds of
Radios.
cuhulin

C. E. White

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Dec 21, 2009, 8:23:15 PM12/21/09
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"Steve W." <csr...@NOTyahoo.com> wrote in message
news:hget67$brv$1...@aioe.org...

> cuh...@webtv.net wrote:
>> Once or twice on tv news, they said the crooks have electronic devices
>> that can open those fancy electronic car locks.They can unlock/open the
>> doors and trunks,,, and probally much more.I don't trust any kinds of
>> electronic locks at all!
>> cuhulin
>>
>
> The problem with the electronic locks are that they are VERY limited.
> Note that, although they usually show the numbers 0-9 there are only 5
> buttons. That means you only have 25 possible combinations.

There are many more than 25 possible combinations. The actual number is

5*5*5*5*5 = 5**5 = 15,625

The codes are order dependent and you can repeat numbers.

Any theif that wants to steal the car could break in a lot faster with a
slim jim, or just by braking the glass.

Ed

fred

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Dec 22, 2009, 10:23:23 PM12/22/09
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"C. E. White" <cewhite...@mindspring.com> wrote in
news:2aydnTg2gaPjgq3W...@earthlink.com:

For those whose curiosity is raised, it takes roughly 1/2 hour to do
1,000 combinations - I actually did it sucessfully on a cheap bike lock
once. So that would take roughly 8 hours give or take.

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