Important Tips for buying a Second Hand Mobile

Important Tips for buying a Second Hand Mobile.

Condition:

External Condition:

Take a look at the phone from every angle. This may sound obvious, but one has to inspect the phone closely to detect scratches, cracks, tempered body and bruised edges, if any. Check the edges thoroughly to see if the phone has undergone multiple drops.
Next, move on to the screen of the device and check the screen for scratches and cracks. Always switch on the device and check the screen for cracks, which usually appear as bright line/lines on the screen or in the form of bleeding pixels. This could affect the viewing experience. In case the phone has a physical keyboard, then check for broken keys. Check the camera lens for any kind of damage.
Internal Condition:
To check internal condition dial this code *#*#4636#*#* (Only for android).
Check Phone information and Battery Information
Here are some photos for your assistance !

Wi Fi Settings

     
Dial *#1234# to check software this code is only for SAMSUNG

AnTuTu Benchmark

Download this app and open it and then go to device info tab and match specifications of mobile with this website note basic specification of mobile and match with antutu benchmark you can also use this app for checking specifications CPU-Z

IMEI #

Dial *#06# IMEI number will be displayed on screen  and then match IMEI number printed on warranty card and on the box you should also match IMEI number with number printed under battery you can see this number after removing back cover and battery of mobile.
IMEI stands for International Mobile Equipment Identity. It is a 15-digit number and may be found in the packet of the mobile phone. It may also be found by removing the back cover and it may be placed on the battery sticker. Some tips are described below by which you can check quality and manufacturer country of that mobile.
The number might be as below:

3 6 9 3 9 5 0 1 2 3 5 5 6 7 8

Now look at the 7th and 8th digit. These two digits will ensure your phone’s quality!
1. If the seventh and eighth digits are 00 this indicates your cell phone is manufactured in Original Factory which ensures the best quality.
2. If the seventh and eighth digits are 01 or 10 this indicates your cell phone is manufactured in Finland which is high quality.
3. If the seventh and eighth digits are 13 this indicates your cell phone is assembled in Azerbaijan which is too bad. And it is also dangerous for health!
4. If the seventh and eighth digits are 02 or 20 this indicates your cell phone is assembled in Emirates which is very poor quality. (Note: Some Indian sets have this number)
5. If the seventh and eighth digits are either 03/30 04/40, this indicates your phone is made in China but its quality is good. But not good either as 00, 01 or 10.
6. If the seventh and eighth digits are 05 or 50 this indicates your cell phone is manufactured either in Brazil or USA or Finland.
7. If the seventh and eighth digits are 06 or 60 this indicates your cell phone is manufactured either in Hong Kong, or China or Mexico.
8. If the seventh and eighth digits are 08 or 80 this indicates your cell phone is manufactured in Germany which is fair quality.
This will help you to pick the good one. Try it. But, remember, these tips may not work with the Sony Erickson Mobile Phone. Though the above information has been collected from very reliable sources, 1 or 2 of them may slightly vary.

Earphones:

First connect earphones and check sound quality. Make a call and check microphone and also check it by playing a sound clip.

Memory Card & Slot:

Take off  battery cover and check condition of memory card slot then insert your memory card and check it by using file manager app of mobile also format memory card then take a camera shot and check that new image is in memory card.
Hard Buttons:
Check all hard buttons of mobile there should be smooth and quick response of these buttons.

Battery:

Now check condition of battery it should be neat and clean and it should not be bulging at center check this by placing battery on flat surface horizontally and then rotate it and if it starts rotating then it is not in good condition Don’t accept it.

Camera and Flash:

Check camera lens condition by taking photos and videos and don’t forget to check flash light with camera.

Charging and micro USB Jacks:

Charging can be checked by using data cable and a laptop (Note : This is only for mobiles which allow charging through micro USB  jack)

Bluetooth Wi-Fi & Network Signal:

Check Bluetooth Wi-Fi & Network Signal by connecting it with other devices if other devices are not available then just check it by switching it on and off.

Display:

You can check display by using this code *#0*#. This is known as LCD test Menu. You can also check display by using a black and white plain photo that will make it very easy to check that LCD/LED is not damaged at any spot.

Life Timer:

You can check life timer by checking warranty card.
Note : Please match IMEI number of mobile and warranty card (Method explained below)
You can also check by some codes:

For NOKIA:

Dial *#92702689#
Go down until "Life timer". The time is shown in HHHH:MM, for example 0098:38 is 98 hours 38 minutes. Turn off the phone, but on some phones have OK button.

For SAMSUNG:

*#3282*727336*# PHONE USAGE
*#22558463# Total Call Time

For other Companies:

*#0782# Real Time Clock Test