Hidden functions and taboos of mobile phones

Your mobile phone battery is low. To keep it in use, press the *3370# key and the phone will restart. After starting, you will find that the power has increased by 50%. When this hidden spare battery runs out, you have to charge it. When charging, the invisible backup battery is also charged at the same time, and this method can be used next time the power is low. If the battery of the mobile phone is low, it is very useful to know this in an emergency.

Did you leave the car remote control in the car?

Can you turn on the remote control of your car? If you can, you will find that one day you leave the car remote control in the car and the spare remote control is at home, so it is very convenient to have a mobile phone. Call your family's mobile phone with your mobile phone, and hold it one foot away from the car door. At the same time, your family will hold the remote control next to his mobile phone and press the unlock button on the remote control, so that your car door can be opened here. This method works no matter how far you drive from home. (7) I tried it myself, and the effect is very good and amazing. )

3. Emergency situation

The emergency number that can be dialed by mobile phones all over the world is 1 12. When you find that there is no cell phone coverage in your area, and you encounter an emergency, it is correct to dial 1 12 with your cell phone, because your cell phone will automatically search all available networks and set up an emergency call. What's particularly interesting is that you can still dial 1 12 even if your phone is in the keyboard lock state. Give it a try!

4. The mobile phone was stolen?

There is a way that thieves can't use, hehe! To view the serial number of the mobile phone, just enter * # 0 6 # and the serial number of 15 will appear on the screen of the mobile phone. Every mobile phone in the world has a unique serial number. Record the serial number and save it. One day, if your mobile phone is unfortunately stolen, call the mobile phone provider and provide your mobile phone serial number, and they will help you shield your mobile phone, so that even if the thief changes the SIM card, it still cannot be used, and your mobile phone will become useless to the thief. If every mobile phone holder in the world does this, there is no point in stealing mobile phones. In Australia, the police even set up a database of stolen mobile phones. If you find your mobile phone, you can return it to you.

Necessary for routine maintenance:

1. Don't wait until the battery is dead before charging.

Generally, we have an idea that it is best to recharge the battery of mobile phone after it is fully discharged. Basically, this is the case, because most of the rechargeable batteries we used in the past are nickel-hydrogen batteries, which have the so-called memory effect. If they are not fully discharged and recharged, the battery life will be rapidly reduced. That's why we started charging with the last drop of electricity. Nowadays, most mobile phones and general IA products use lithium (Li) batteries, and there is no memory effect problem in lithium batteries. If the battery is completely used up before recharging, the chemicals inside the lithium battery will not react and the service life will be shortened. The best way is to charge it when you have nothing to do, and keep it in the best full state anytime and anywhere, so that your battery can last for a long time. This is the manufacturer's information, and I have tested it myself.

2. Don't answer the phone when the phone is charging! !

The reason is that it is potentially dangerous to answer the phone when the phone is charging. There is a 3 1 year-old young man in India who works as a business manager in an insurance company. 10 days ago, he answered the phone when the phone was still connected to the charger. After a few seconds, a lot of current passed through the mobile phone, and the young man was thrown to the ground. When the family found out, their fingers were burned, their heartbeat was weak and they were unconscious. After being rushed to the hospital, the doctor pronounced him dead. Mobile phone is the most commonly used modern invention at present. However, we should also be alert to the danger of instrument death.

Don't use the mobile phone when there is only one battery left.

The transmission intensity is more than 1000 times different from that when only one cell is left. Therefore ... people who often talk about mobile phones ... should pay attention to ... 0. I got a very important message from a mobile phone manufacturer yesterday, that is, when you find that the reception intensity of your mobile phone is only one cell, you would rather hang up or change to a public phone. Don't talk too much. As we all know, the electromagnetic wave of mobile phones has always been a worrying problem. The design of mobile phone will enhance the intensity of electromagnetic wave emission, so as to maintain considerable call quality in areas with poor reception. When the reception is full and there is only one cell left, the transmission intensity difference exceeds 1000 times. The electromagnetic wave intensity is as high as 0.6W (Watt). How strong is 0.6W? I can't describe in detail what bad effects it will have on your brain, but I can compare it with two examples:

1) turn up the volume of a small radio with a speaker diameter of about 4 cm and stick it to your ear. The noise energy is generally 0.25W, less than 0.5W W. ..

2) Put your finger in front of a laser beam with an output intensity of 0. 1W (equivalent to that of an optical fiber network? You will feel burning pain in a few seconds. Can you stand these two situations for a long time?

Then how can you be sure that 0.6W electromagnetic wave will be fine if it is attached to your ear?

4. 12593+ phone number = trap Did you save the phone number of a foreign friend in the phone book in the format of 1795 1+ phone number? Instead of dialing alone? Then the charge will be changed from 0.39 yuan per minute to 65438+ 0.3 yuan per minute. I also checked with 1860. Their explanation is, if it is stored in the phone book? The system will not recognize it. So you can't get the preferential tariff. You must press 12xxx directly on the keyboard every time. Are all users of Shenzhouxing like this? M-zone users, so is GSM. If you are a mobile user in China, when you know that China Mobile has set the following trap for you, you won't be surprised why your phone bill flies away like a wing. You can get a discount by using 12593+ phone number, but if you save "12593+ phone number" in the phone book of your mobile phone in advance, dial it out when you use it, and then dial it out. At this time, China Mobile will not admit that you have used the preferential dialing method of 12593, but will charge according to the direct dialing method. If it is roaming, the difference between the two charging methods can be as high as 7 times! I really didn't know how to express my anger when I learned about this charge. Later, when I called 10086 for consultation, if I hadn't asked this question on my own initiative, the lady whose work number is 6608 didn't tell me about this charge at all.

5, the parasite of mobile phone fee

The mobile phone is inexplicably set with useless text messages. I strongly recommend that you see if you have been recruited. The easiest way is to unsubscribe from the parasite who steals your mobile phone bill every month! China Mobile was forced to launch a new service on 3. 15. If you are a mobile phone user of China Mobile, enter the number "0000" and send a message to 10086. Within a few seconds, a short message list will be automatically replied, showing which short message services you have subscribed to on your mobile phone, and which short message service providers will deduct your mobile phone fee every month. Type the number "00000" and send a short message to 18620 1 to unsubscribe from all short message services.

6. Don't rush to make up 1 minute.

When we are on the phone, we are often glad that we finished the call just before 1:00, but this is not the case. According to a staff member of China Mobile, the call to 0: 55 is actually one minute, so the call time from 0:55 to 1: 00 is actually two minutes for you ~

7. When water enters the mobile phone, please remember not to press any button, especially to turn it off (when you press any action, the water will immediately flow with the circuit board). The correct way is to open the cover immediately, take off the battery directly, and force the power off directly, so as to protect the motherboard from water.

This common sense is very important, so I will tell you to make your hand work for a long time. Learn! In case of future emergencies!

8. How to bring the mobile phone battery back to life?

When the battery life of your mobile phone becomes shorter (memory effect or aging), will you buy another battery to replace it?

Please save your money and tell you a very effective method next time you encounter this situation. Give it a try:

1) Wrap the battery in newspaper, then put it in a plastic bag and put it in the freezer for three days (the newspaper can absorb excess water).

2) Take it out after three days and leave it at room temperature for two days.

3) After two days, charge the battery and put it into the mobile phone for testing (estimated to save 80%-90%).

This information was revealed by engineers from well-known battery manufacturers, and it is quite effective according to friends who have tested it.

As for whether it works or not, the battery is almost useless anyway, and everyone has a refrigerator. Friends might as well give it a try!

9. Give your mobile phone a CPR!

Does the mobile phone often run out of power? Or is it fully charged and then dead?

I must wonder if the life of the mobile phone is over.

Don't worry, it's just a temporary "cardiac arrest". Just a little eraser can bring it back to life!

After taking out the battery, clean the contacts (brass sheets) on the battery with an eraser and put them back on the phone. You will find it really amazing! It really came back to life! It looks like a new one!

Really useful for your reference!

10, teach you how to eliminate scratches on the screen of your mobile phone.

Do you often encounter scratches on the screen of your mobile phone and don't know how to deal with them?

Tell you a useful secret recipe ... (I saw it on TV the other day)

Squeeze a proper amount of toothpaste on a wet rag, and then evenly apply it to the scratches on the screen of the mobile phone. .....

You will find ... the scratches on the screen of the mobile phone will disappear ... amazing! !

Even more amazing ... after cleaning with a clean rag or toilet paper ... the screen of the mobile phone will light up. ....

Professor of Chemistry Department of National Taiwan University said: The principle is that toothpaste is only an auxiliary product for brushing teeth, and it has a rubbing effect (repairing effect).

And clean and polish the tooth surface, so it will have the same effect when used on the screen of mobile phone.