Tried and Tested so read my story, Now the story is that you can unlock you car with your mobile phone if you have locked the keys inside, now ok it is fair to say if you lock your keys in your car it could be expensive to either break the window or call a lock smith, so how about using your mobile phone to unlock your car.
Ok so if your car is of the central locking sort then you have half the chance of unlocking your locked car with a mobile phone, follow these simple steps to make it work.
1. Call the person with the spare key
2. Hold your cell about a foot away from your car door
3. Have the person with the key to press the unlock button near their cell
4. Your car will unlock!
Right now I tried this on my BMW 5 series which of course has central locking, so the car is locked and I got my brother to stand near my car, I went for a walk about half a mile away I tried the above. Guess what after an hour of playing around it did not work.
Please have a go at this and see if it works for you, post your answers below in the comments box provided.
Source — Product-Reviews via BreakTheChain