Four hidden functions of the mobile phone and required knowledge page 1/2

1. Invisible backup battery

Your cell phone is underpowered. to enable it to continue using it, press the * 3370 # key and the phone will restart. After it is started, you will find that the power usage has increased by 50%. When the hidden backup battery is used up, you have to charge it. When you recharge the battery, the invisible backup battery is also charged. You can use this method when the power usage is low next time. I know this is useful if the cell phone power is insufficient in an emergency.

2. Is the vehicle remote control in the car?

Can the remote control be enabled for your vehicle? If you can, one day, you will find that you have a mobile phone that is very convenient, and you can use a mobile phone to dial the mobile phone of your family, take your phone 1 feet away from the door, and press the unlock key on the remote control next to your phone with the remote control. This method works no matter how far you drive away from home.

3. Emergencies

All mobile phones around the world can call the common emergency number 112. When you join us and find that your region is not covered by a mobile phone signal, you are in an emergency, you can call 112 on your mobile phone, because your mobile phone will automatically search for all available networks and create an emergency call. Even if your phone is locked on the keyboard, you can call 112. Try it!

4. Is the mobile phone stolen?

There is a way to make thieves useless, hey! To view the serial number of a mobile phone, just type * #0 6 #. The 15-bit serial number will appear on the mobile phone screen. Each mobile phone in the world has a unique serial number, record and save the serial number. One day, if your mobile phone is stolen, you can call your mobile phone provider and provide your mobile phone serial number. They will shield your mobile phone, even if the thief changes the SIM card, still unable to use, your phone is useless for thieves. If every mobile phone holder in the world does this, then it makes no sense to steal a mobile phone. In Australia, the police even set up a stolen mobile phone database. If your mobile phone is found, it can be returned to you.

Routine maintenance is required:

1. Do not charge the cell phone battery until no power is available.

Generally, we have an idea that the battery power of our mobile phones should be completely put and recharged. This is basically true, because most of the rechargeable battery we used previously were Ni-H (NI) batteries, however, MH-Ni battery has a so-called memory effect. If the battery is not fully charged and then recharged, the battery life will decrease rapidly. Therefore, we will use the last power drop to start charging. However, most of the current mobile phones and General Ia products use lithium (LI) batteries, and the lithium battery has no memory effect. If you still wait until all the power is used up and then charge again, it will make the lithium battery internal chemicals unable to respond and reduce the life. The best way is to recharge your battery whenever and wherever possible, so that your battery is available for a long time. This is the information obtained from the vendor and tested by itself.

2. When the phone is being charged, do not answer the phone !!

The reason is that when a mobile phone is charging, it is potentially dangerous to answer incoming calls. In India, a 31-year-old man who worked as a business manager in an insurance company answered the phone when his mobile phone was still charger for more than a decade. After a few seconds, a large amount of current went through the mobile phone, the young man fell to the ground. When his family found out, his fingers burned, his heartbeat was weak, and he had lost consciousness. After being urgently sent to the hospital, the doctor declared that the hospital had died. Mobile phone is the most commonly used modern invention. However, we must be aware of the danger of death from the instrument.

3. Do not use the remaining cell phone

When there is only one grid, the transmission intensity is more than 1000 times different. So ...... People who often talk about mobile phones ...... Please note that ...... ^ 0 ^ a very important message from a mobile phone dealer yesterday, that is, when you find that there is only one cell phone receiving intensity, you 'd rather stop talking or switch to a public phone. don't talk about it, talk about it, get it done, get it done, and get it done... Why? We all know that mobile phone electromagnetic waves have always been a worrying issue. the mobile phone is designed to maintain a relatively high quality of calls in areas with poor reception, which will enhance the electromagnetic emission intensity of mobile phones. when the received message is full and only one grid is left, the emission intensity is more than 1000 times different. electromagnetic Wave intensity up to 0.6 W (Watt ). how strong is 0.6w? I cannot describe the negative effects on your head, but I can use two examples to compare them:

1) Turn the volume of the small radio around 4 centimeters in diameter to the maximum and stick it on the ear. The noise energy is generally 0.25 W, less than 0.5 W.

2) Place the finger in front of the laser light with an output intensity of (equivalent to the optical fiber network? D trunk line energy) in a few seconds you will feel burning. Can you endure these two conditions for a long time?

Then, how do you confirm that the electromagnetic wave 0.6w is close to your ears?