Unlock Your Car Door with a Cell Phone?
Thursday August 11, 2005
Locked out of your automobile? According to this perennially popular forwarded email, you can have someone transmit a signal from your spare remote key via cell phone to unlock your car door in a pinch. Truth is, it won't work; it can't.
Comments
The cell phone trick really does works… you should try it before you tell everyone it doesnt work…
Tried and true. It works. Apparently the theory behind how the remotes work is incorrect.
Anybody who believes this has no clue as to how cell phones and remotes operate- not to mention their lack of knowledge or the audio and RF spectrum. I have a bridge for sale in Brooklyn NY and you get to keep the tolls
This does not work. Thought my daughter locked/unlocked the car at first, but found out the key works from inside the house. Who knew? Anyway, the remote entry does not operate on sound, so it won’t work with a cell phone. The remote key’s frequency does not match the phone frequency either. Check out Snopes.com http://www.snopes.com/autos/techno/keyless.asp
looks like someone did figure out how to make it work…
http://www.metacafe.com/watch/422747/cell_phone_keyless_entry/
I just heard about this yesterday. I tried it at home and went to another neighborhood with my car. I called my wife, told her to hit the unlock on the remote, and I about fell over. The freakin door unlocked. I have no idea how, and I do know about communications since I was commo in the military. It can’t be ultrasonic, it can’t be RF, I just don’t know…. PLEASE someone tell me how it does it.
This does work. I just tried it with my daughter several times from varying locations in and around my home with and without our cell phones and my car did unlock via the cell phone. I can’t tell you how the frequency works, but it does. Bah to the naysayers.
Hey… it works. Dunno why, but it does. I just tried it with two different cars.
I just tried this with my boss’s truck and IT WORKS. Those who say it doesn’t obviously have never tried it.
im going to say this wont work.but, like an idiot im going to try it. let you know.
I can’t believe that some idiots out there said they tried it and it worked - it can’t unless the car is within the range of the remote - this could be 500 ft or more depending on the remote and atmospheric conditions.
it does too work! from miles away!! who ever says that it doesnt work has a s****y key fab! and doesnt know shit!
This didnt work for me….
http://www.snopes.com/autos/techno/keyless.asp click on that link boneheads
It depends on what type of a car you have. Some cars such as the Audi S6 or Mercedes benz CLK-320 Require not just a remote signal but a proximity signal. It is at a frequency different than that of a phone. The Phone can’t pick it up. I also tried to Record the IR beam on the mercedes Benz CLK-320 to my pocket pc remote control. It doesn’t work. Expensive cars have safe guards so you can’t record the signal on a microphone so other people can break in. It might work on older cars like a 98 Jeep grand cherokee Laredo yes, but on some new cars it won’t. If you wanted to you would need to get a phone dialer and replace the crystal with a higher mega-hertz crystal to make it work.
This will explain everything this is how a remote works!!!!!
http://auto.howstuffworks.com/remote-entry2.htm
it does work. I just tried it on the other side of town.
OK - this definately DOES work. But not for all cars. I watch a show in the UK called “Brainiac”, which is brilliant - check it out. Anyway, they have an urban myths slot - and tested this mobile phone/remote key fob thing, and it worked. Turns out “Ed Kedz” is not as smart as he thinks! OBVIOUSLY they first tried to unlock the car using the remote on its own - the guy with the key was in the studio and the car was out in the parking lot. The car didn’t unlock, then the guy called his buddy out by the car and tried again and it unlocked. This was a proper experiment done scientifically, and the results were conclusive. Clearly there are certain factors which affect whether or not this will work for you. Different remote locking systems use different types of signal and different frequencies. Similarly, different cell phones on different networks also use differing signals. But if you have the right combination this undoubtedly is true. So there you go. It’s definately NOT because people trying this are still in range of their car. Look at the posts - some people went to the other side of town!!
Well I’ve tried this on 5 different cars so far and with 3 different mobiles. Didn’t work on any of them. Also asked some of my friends to try it and they also had no luck. One of them did tell me though that the Brainiac episode mentioned above was an April fool which they admitted to in the following episode.
THIS WORKS. My college classmates and I just tried it. We were total doubtful…IT WORKS. OnStar said it didn’t work but they lied!
The system absolutely works. Those who say it does not work either their remotes are not real or they do not want to admit this technology so that others may not profit from it. In this world there are many selfish people who never want to share their knowledge with others only what they mind id money and when they die, they do not take not even a penny. So, the keyless car remote absolutely works with cellphones to unlock car doors and trunks.
… just go and try it .. if it works .. woohoo .. if not.. then it doesn’t!
what’s the big deal!?
Cunnell - you must be one of those morons that thinks every bit of weblore is in fact true. It doesn’t matter what frequency the remote is nor does it matter what format the cell phone is ( PCS or CDMA for example ). The remote still operates in the range of RF and the speakers and microphones in a cell phone cannot “hear” or “repeat” this part of the spectrum. Go back to your job at Mickey D’s the fat in the deep fryer needs changing and the garbage needs to be put out.
When I heard about this me and my girlfriend tested this with her vehicle. The vehicle used was a 2006 Toyota RAV4. Cell phones used (sending and receiving) were both similar Samsung Models, both on the T-mobile network. I have no idea what technology the remote uses.
This is what we did. I took her remote and walked away from the vehicle. I tried just the remote and the car unlocked because I was still in range. I walked further and tried again. I continued doing this until the car no longer responded, meaning I was out of range. Then I called my girlfriend and told her to turn the phone toward the car. I held the remote up to my phone and hit the button. If I recall it didn’t work the first time, but when I had her hold the phone closer the car did respond. Bottom line, it worked for us in a parking lot. We haven’t tried this long distance (ie. over state lines), however.
The scammers on the UK Brainiac show are basically full of crap - see the real deal on Mythbusters on Discovery in the good old US of A.
This rumor has been on the web for a good 4 years - has been proven bogus by Snopes and others and still ignorant morons persist in saying it was done by them and worked. I think I’ll have whatever they are smoking.If you believe this- TimCunnell and others then “you have been owned bro”.
I can’t believe that anyone would fall for this bogus tale , at least not anyone with ANY type of background in the sciences. This is just another case of the “dumbing of America” - the same applies to that idiot in the UK.
Proof that this does not work.
Check out 1) Snopes says it doesn’t.
2) “Mythbusters” did a demo on
TV and it didn’t work.
“One of them did tell me though that the Brainiac episode mentioned above was an April fool which they admitted to in the following episode.”
Comment by Paul — November 26, 2007 @ 3:44 pm
I would venture to say that the majority of people on this forum who said they tried it and said it worked are just plain old liars and/or are repeatinf second, third and fourth hand hearsay evidence.”TimCunnell” is perhaps the cream of this shoddy crop.
OOPS…. TYPO….. SORRY
I meant repeating not repeatinf
I have not tried this personally (although I will be trying it tonight). However radio frequencies can be transfered between devices through a phenomenon called induction (examples are devices that do not plug-in to charge i.e. Philips Sonicare toothbrushes). It may be that the radio signal from the cars remote (despite the difference in operating frequencies from the cell phone) are being induced onto the carrier signal of the cell phones, which in turn is simply multiplexed into the towers transmission packet that is bounced through the cell network and demultiplexed too the cell phone on recieving end. Just a thought……