1. Identify refurbished machines:
1. Check carefully whether there are any marks on the screen, and whether there is dust on the data cable, headphone jack, speaker hole, and strap hole.
2. Check carefully whether there are any scratches on the battery lock of the fuselage, whether there are any rotation marks on the rotating shafts of the upper and lower covers, and whether there are any indentations on the two bumps on the upper cover.
3. Carefully check whether there are records in the WAP and voice functions and the call record information function.
4. The shell depends on comparison (compare brightness, uniformity, tone, granularity... with a machine that has proven to be good).
5. Smell the smell. The new machine smells of sandalwood, which is different from ordinary detergents and perfumes. There should be no sticky wax or oil on the body (if any, it has been beautified by JS).
6. Carefully check the SIM card contact points and the body battery contact points for wear marks (distinguish the rest of the contact points).
7. Check whether the gaps at the seams of the shell are even and below 1MM, whether there are pry marks, and whether there are pick marks at the two sealing points under the screen inside the upper cover.
8. Compare the flexibility of the buttons and the brightness of the internal and external displays with the new machine.
9. Check carefully whether there are any rotation marks on the fixing nails of the fuselage, paint or ink (you can use a magnifying glass), and whether there are pry marks on the trademark.
2. Inquiry of place of origin and production date:
There is an MSN mechanical serial number on the back of Motorola mobile phones, ***10 digits.
It represents\ 'Model code, manufacturer code, production year, production month, and product serial number.
The details are as follows:
MSN code---machine serial number:
1. How to check: Turn off the phone, take off the back cover and battery, and there is a series of numbers under the barcode on the back of the fuselage: such as: MC3-41E11 C836DD3P4R 350904805489928. Among them, "C836DD3P4R" is the MSN code, with the last ten digits.
2. The representative meaning is as follows: the first three digits are the model code; the fourth digit is the manufacturer code, the fifth and sixth digits are the production date code (the first is the year, the last is the month); the last The four digits are the serial number. (1) Manufacturer code (the fourth code): 6-Tianjin 3-Hangzhou 2-USA R-Germany G-USA 5-Hangzhou Eastcom W-is Singapore (2) Production year (the fifth code) ): January C-D -- February E-F -- March G-H -- April J-K -- May L-M -- June N-P -- July Q-R -- August S-T -- September U-V -- October W-X -- November Y-Z --December (note: the former represents the first half of the month, the latter represents the second half of the month)
3. The difference between parallel imports and licensed imports
1. Mainland licensed products, with Mobile QQ function. The version can be checked on the machine.
2. Hong Kong Bank: There are simplified and traditional Chinese interface options, but only traditional Chinese characters can be entered. There is no mobile QQ. The version cannot be checked on the machine.
< p>3. Singapore version: Simplified interface, simplified input. No mobile QQ. You can check the version on the computer. The language list in other information is 0024.4. European version, if you do not have the Chinese language package, then It's a pure foreign language machine. Whichever version you use will have the same functions. However, there is no stroke printing on the keyboard.
Battery:
Motorola original battery purchase guide
Users can distinguish the authenticity of Motorola mobile phone batteries from the following points:
1. Genuine Motorola batteries are all designed with brown wire straps, which is a high value-added design of Motorola; while for counterfeit batteries, there is generally no brown wire strap design, and even if there is, it is different from Motorola batteries.
2. Printing labels--There are two steps for label printing of Motorola genuine batteries.
First of all, the design and production of the Motorola logo and battery instructions are printed by the label manufacturer, and the barcode is printed by the battery manufacturer, so the colors will be different; while the so-called logo, instructions and barcode of the counterfeit battery are completed at one time Printed so the above colors are the same.
3. Motorola logo - The logo of genuine Motorola batteries is very smooth and bright; while the logo of fake batteries is basically very dim.
4. Battery casing welding - The front and rear casings of Motorola's genuine batteries are tightly welded; while the front and rear casings of most fake batteries are glued together and are easily broken.
5. The M logo on the back of the Motorola mobile phone battery is integrated with the battery casing, while the M logo on most fake batteries is glued on and can be pried open with force.
Secondly, if you want to prevent yourself from being harmed by counterfeit and shoddy batteries, it is best to go to a Motorola designated store when purchasing a mobile phone or battery. Specialized stores all have authentic product purchase channels, as well as professional and good after-sales services.
4. Instructions for purchasing a machine
1. Be sure to go to a regular shopping mall. Or a large shopping mall. Shop around.
2. Don’t be anxious and test the machine slowly. Call 120 to see how it sounds.
3. Check if there is anything wrong with the fuselage. Are the gaps closed well?
4. Check the screen to see if there are any dead pixels. Adjust the lightest and darkest settings. Settings-Initial Settings-Adjust Brightness
5. Then try the ringtone and adjust it to the loudest. Is there any broken sound?
6. Enable the camera function and take a photo against the white paper to see if there are water ripples. Then shoot in complete darkness to see if there are any bright spots.
7. Check the software version: Menu-Settings-Phone Status-Other Information-Software Version.
8. *#06# Check whether the IEMI in the phone is the same as the label on the phone (under the battery) and the box.
9. Ask about the three guarantees and take all the procedures. After returning home, let’s “bake the machine” first. If there is any problem, replace it immediately
10. Buy the latest version, currently it is 95R! Please see the precautions below
1. Check carefully whether there are any marks on the screen, data cable, and headphone jack , speaker hole, strap hole whether there is dust.
2. Check carefully whether there are any scratches on the battery lock of the fuselage, whether there are any rotation marks on the rotating shafts of the upper and lower covers, and whether there are any indentations on the two bumps on the upper cover.
3. Carefully check whether there are records in the WAP and voice functions and the call record information function.
4. The shell depends on comparison (compare brightness, uniformity, tone, granularity... with a machine that has proven to be good).
5. Smell the smell. The new machine smells of sandalwood, which is different from ordinary detergents and perfumes. There should be no sticky wax or oil on the body (if any, it has been beautified by JS).
6. Carefully check the SIM card contact points and the body battery contact points for wear marks (distinguish the rest of the contact points).
7. Check whether the gaps at the seams of the shell are even and below 1MM, whether there are pry marks, and whether there are pick marks at the two sealing points under the screen inside the upper cover.
8. Compare the flexibility of the buttons and the brightness of the internal and external displays with the new machine.
9. Check carefully whether the fixing nails of the fuselage are rotated, painted and inked (you can use a magnifying glass), and whether there are prying marks on the trademark
Continue to add:
1. Check the appearance: whether there are obvious scratches on the fuselage; whether the paint color has been worn off; whether the nameplate and screen are scratched, and whether there is a film.
2. Look at the electrical panel: whether the joint between the thin plate and the thick plate and the fuselage is large. Gently pinch it with your hands to see if there is an obvious "squeaking" sound; whether there are small black dots on the contact points of the electric board (the reeds of the electrodes). If there is black color, it means that the board has been activated and someone has used it.
3. Check the IMEI: whether the serial number on the outer box of the mobile phone, the serial number on the back of the phone, the serial number of the software inside the phone, and the serial number on the invoice are consistent.
4. Pay attention when testing: JS will ask you to make a phone call to test the voice quality. You need to listen to see if the sound is distorted and whether the signal is good; other functions should basically not be too big. The problem mainly depends on the speed, stability, etc. of the software...