How to evaluate the quality of a mobile phone?

Friends who use mobile phones have a look: 1. Teach you how to quickly identify the quality of mobile phones. Press *#06# first, then a serial number will appear for you on your phone, and you will count to the seventh and eighth numbers. If your seventh and eighth numbers are the corresponding two numbers below, then the quality of your mobile phone is determined. 0, 2 or 2, 0 means it is made in Arabia, which is a very poor phone. 0, 8 or 8, 0 means it is made in Germany, which is a better phone. 0, 1 or 1, 0 means it is made in Finland. It is a very good mobile phone. 0, 0 means it is produced by the original company and it is the best quality mobile phone (original mobile phone). 1, 3 means it is produced in Azerbaijan and it is a very, very poor mobile phone. The IMEI is TAC FAC SNR SP. . IMEI (International Mobile Equipment Identity) is the abbreviation of International Mobile Equipment Identity. The International Mobile Equipment Identity is an "electronic serial number" composed of 15 digits. It corresponds to each mobile phone one-to-one, and this code is used worldwide. The only one. Each mobile phone will be assigned a globally unique set of numbers after assembly. This number will be recorded by the manufacturer from production to delivery. Its composition is: 1. The first 6 digits (TAC) are the "model approval number", which generally represents the model. 2. The next 2 digits (FAC) are the "last assembly number", which generally represents the place of origin. 3. The following 6 digits (SNR) are the "serial number", which generally represents the production sequence number. 4. The last digit (SP) is usually "0", which is the check code and is currently in use. The IMEI code is affixed to the logo on the back of the phone and is read and written in the phone's memory. It is also the "file" and "ID number" of the mobile phone at the manufacturer. Attachment: How to obtain the IMEI code of your mobile phone. If your mobile device is a mobile phone, you can press "*#06#" on your mobile phone to obtain the IMEI code of your mobile phone. 2. Don’t wait until the mobile phone battery is empty before charging. Generally, we have an idea that it is better to discharge all the battery power of the mobile phone and then charge it. This is basically correct, because most of the rechargeable batteries we used in the past were nickel-metal hydride (NiH) batteries, and Ni-MH batteries have so-called The memory effect will cause the battery life to be rapidly reduced if it is not discharged and recharged. That’s why we use the last drop of electricity before we start charging. However, most current mobile phones and general IA products use lithium (Li) batteries, and lithium batteries do not have the problem of memory effect. If you still wait until all the electricity is used up before recharging, the chemical substances inside the lithium battery will not be able to react and the lifespan will be shortened. The best way is to charge it whenever you have nothing to do and keep it in the best full condition anytime and anywhere, so that your battery can be used for a long time. This is information obtained from the manufacturer and obtained through own testing. 3. Do not answer calls when the phone is charging!! The reason is that it is potentially dangerous to answer incoming calls while the phone is charging.

There is a 31-year-old business manager in an insurance company in India. A dozen days ago, he answered a call while his mobile phone was still connected to the charger. After a few seconds, a large amount of current passed through the mobile phone. The young man was thrown to the ground. His family When he was discovered, his fingers were burned, his heartbeat was weak, and he had lost consciousness. 4. Do not use the mobile phone when there is only one bar left. Compared with the full bar and when there is only one bar left, the emission intensity is more than 1000 times different. So... often People who talk about mobile phones...be careful...^0^, I got a very important message from a professor at Jiaotong University yesterday, that is, when you find that the reception strength of your mobile phone is only one bar, you would rather hang up. Stop talking or use a public phone instead. Don't talk endlessly, foam at the mouth, be passionate, lustful, endless... Why? Everyone knows that the electromagnetic waves of mobile phones have always been worrying. The problem. In order to maintain a good call quality in areas with poor reception, the design of mobile phones will increase the electromagnetic wave emission intensity of the mobile phone. When the reception is full and there is only one bar left, the emission intensity differs by 1000 More than times. The electromagnetic wave intensity is as high as 0.6W (watt). How strong is 0.6W? I can’t describe in detail what adverse effects it will have on your head, but you can compare it with two examples: 1) Turn on the speaker When a small radio with a diameter of about 4 centimeters is turned up to the maximum volume and placed against the ear, the noise energy is generally 0.25W, less than 0.5W. 2) Put your finger in front of a laser light with an output intensity of 0.1W (equivalent to the D trunk energy of an optical fiber network) and you will feel burning pain within a few seconds. Can you endure the above two conditions for a long time? Then How can you confirm that it will be fine if the 0.6W electromagnetic wave is pressed against your ears? 5.17951 phone number = trap. Did you store the phone number of your out-of-town friend in the phone book in the format of 17951 phone number? Instead of dialing it separately? Then the charge will change from 0.7 yuan per minute to 1.3 yuan per minute. I also checked with 1860 and their explanation is that if it is stored in the phone number book, the system will not be able to recognize it. Therefore, you cannot get the tariff discount and you must press 17xxx directly on the keyboard every time. Is this the case for Chinaxing users? It’s the same for M-Zone users, too. If you are a China Mobile user, when you know that China Mobile has set up the following traps for you, you will no longer be surprised why your phone bill will fly away as if it has wings. You can get a discount by using the 17951 phone number, but if you save the "17951 phone number" in the phone book of your mobile phone in advance, call it up when you use it, and then make calls, China Mobile will not recognize that you have used the 17951 discount method. , and billed according to the direct dialing method. If you are roaming, the difference between the two billing methods can be as much as 7 times! When I learned about such billing, I really didn't know how to express my anger. Later, when I called 1860 for consultation, the lady with job number 6608 would not have told me about such billing unless I took the initiative to ask about this issue. 6. The parasite of mobile phone bills. Useless text messages are inexplicably programmed on your cell phone. We strongly recommend that everyone check to see if they have been tricked. The easiest way is to unsubscribe from the parasites that steal your mobile phone bills every month! China Mobile was forced to launch a new service on March 15. If you are a China Mobile mobile phone user, type the number "0000" and send a text message to 186201. Within a few seconds, a text message list will be automatically replied to show you what is customized on your phone. Which SMS services have you subscribed to? Which SMS service providers explicitly or covertly deduct your mobile phone fees every month? Type in the number "00000" and send a text message to 186201 to unsubscribe from all SMS services.

7. Don’t rush to make up for exactly 1 minute. When we make a phone call, we often feel lucky that it ends just before 1:00. However, this is not the case. According to a China Mobile staff member, in fact, when your call arrives, 0:55 is already counted as one minute, so the call time from 0:55 to 1:00 is actually counted as your 2 minutes~ 8. Once the phone is flooded, please remember not to press any buttons, especially to turn off the phone. (As soon as you press any action, water will immediately follow the circuit board). The correct method is to immediately open the outer cover, take off the battery directly, and force the power to cut off directly to protect the motherboard from being invaded by water. This common sense is very important, so I am telling you this so that your mobile phone can last longer. Learn it! Just in case of emergencies in the future! 9. How to bring your 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 it next time you encounter this situation. For your money, let me tell you a very effective way to try: A. Wrap the battery in newspaper and then put it in a plastic bag, wrap it and put it in the freezer for three days (newspaper can absorb excess water) B. Take it out after three days Leave it at room temperature for two days C. After two days, charge the battery. After it is fully charged, install it into a mobile phone package and test it (it is estimated that 80-90% can be saved). This information was revealed by an engineer from a well-known battery manufacturer. According to friends who have tested it, the effect is quite effective. As for Does it have any effect? ??The battery is running out anyway, and everyone has a refrigerator. Friends, you might as well give it a try! 10. Do a CPR on your mobile phone! Does your phone often lose power? Or did it run out of power soon after it was fully charged? You must have doubted whether the life of your mobile phone has ended? Don't worry, it just "stopped the heart" for a moment and can be brought back to life with just a small eraser! After taking out the battery, use an eraser to clean the contacts (brass pieces) on the battery, and then put it back on the phone. You will find that it is really amazing! It actually came alive! It still looks like new! It’s really useful, I’ll provide it for everyone’s reference! 11. Teach you how to eliminate scratches on your mobile phone screen. Do you often encounter scratches on your mobile phone screen and don’t know how to deal with it? Let me tell you a useful secret recipe.... (I saw it on TV a few days ago) Squeeze an appropriate amount of toothpaste onto a wet rag and apply it evenly back and forth to the scratched area on the phone screen... You You will find that... the scratches on the screen of your mobile phone will disappear because of this... It's amazing... !! An even more amazing thing... After wiping the screen with a clean rag or toilet paper... the screen of your mobile phone will disappear. It will become brighter... A professor of chemistry at National Taiwan University said: The principle is that toothpaste is just an auxiliary product for brushing teeth. It has a frictional effect (repair effect) and removes plaque, cleaning and polishing the tooth surface, so it will be used on the mobile phone screen. Has the same effect.