Model iPhone 6s, iPhone 6s Plus are still loved by many smartphone users and looking to buy the old iPhone 6s, iPhone 6s Plus at a very comfortable price compared to the launch, but with the iPhone 6s, iPhone 6s Plus "zin" then users will encounter "builders", the machine is sold rampant.
And if you do not have the experience of choosing to buy an old phone, it is very easy to buy poorly built, poor quality machines, which are both expensive and time consuming, but have not purchased the device as expected. To help you get your old iPhone experience when shopping, IOSTips will send you a few tips under this article to assist you when shopping.
Instructions for checking old iPhone 6s, 6s Plus when buying
1. Check the touch screen
The first thing you can do is to check whether the screen of the device is stable or not, iPhone 6s and 6s Plus has been released for quite a long time, so the drop and break the screen is very much . Many users broke the screen and sold the corpses to the collectors because they did not replace the screen.
So there will be the iPhone instead of the screen, if you're lucky, you can hold the screen zin, but unfortunately, you will hit the screen with quality. Characteristics of the zin curtains are good display quality, not bright, haunting, beautiful colors, no dead spots ...
As for poor-quality screens, there will often be phenomena such as touch-sensitive dead spots, poor feedback, light leaks, colors that are not fresh ... besides the distinctions on the screen, you can check Check the screen edges, test strips at the edge of the screen. If you find it difficult, it is clear that the screen has changed.
Also zin, because not remove the rubber cushion (also known as gaskets), so the claw will be very smooth, because Apple's processing is very good. In some cases, the screen is replaced with the front camera, the speaker groove is deeper than the zin screen.
2. Check the case
iPhone 6s, 6s Plus with aluminum metal casing is quite durable, but if it falls, it still has signs of distortion. And another drawback on iPhone 6s, 6s Plus that the outer paint will peel off after a period of use because of oxidation. But even with that, the old shells are very smooth and bright.
Second, pay attention to details such as the apple logo, the iPhone text and the IMEI engraving section below. If you change the cover on the machine, you will see the iPhone logo and the IMEI section below will have a big, small stroke, sometimes the iPhone letter is pitted, hard keys such as volume up and down keys, shake keys, holes The speaker will be hi-tech CNC cut and have a sharp sparkling diamond cut. The shell is also punctured with the lower membrane to hear more clearly.
Absolutely you should not choose the iPhone has changed the shell, because an iPhone must be crushed to peel the outside to be replaced, and if it has fallen to such a level, then surely the internal components will be affected much less.
3. Check camera, recording microphone, talk microphone, light sensor
Turn on the camera and take a few pictures, click to check the ability to focus, turn on the Flash to capture Flash, test the ability to shoot videos, take panorama ... Also try it by covering the camera and take a black picture, then download a black wallpaper and compare it with the one I just took. If the camera has a problem, the black image you just took will have an unusual color.
Next is the talk microphone and speaker, the speaker. Check the speakerphone first by inserting a sim and making a call, now you will be able to test all three positions: the speaker, light sensor and speaker Then, to test the video recording, turn on the camera and select the video mode, start recording and say something. Finally turn on the video you just recorded to check if there is enough sound.
4. Check the Wifi - 3G connection of the device
Insert sim and test 3G before, go to the browser and play online video or try surfing the web to check the connectivity of the good or not. Note that you use both wifi and 3G connection, and make sure to test the Bluetooth connection of the device.
5. Check the device's Touch ID and 3D Touch
This is a very nice feature that users forget when testing the device, to check the fingerprint, go to Settings> Touch ID and Password> Add fingerprint, if Touch ID works, this feature works. completely normal motion. Remember that each device has only one Touch ID, if that device replaces the Home button, it will inevitably lose fingerprints.
In addition, please test the 3D Touch feature of the device, go to Settings> select General settings> Accessibility and select 3D Touch. Then turn on the 3D Touch button and press hard on the picture below to check the sensitivity, if you don't see anything, the possibility is that the screen has been replaced, which leads to a 3D Touch failure.
6. Check Apple ID in the device
Now going further, you must check whether there is an Apple ID in the device, usually this does not happen much because the collector will ask the reseller to exit his iCloud account from the device. Unless you buy back from friends or family members.
If yes, ask the store or seller to immediately exit the Apple ID account from the phone, only your iCloud account can be logged in.
Or you can ask the original restore shop to check if there is iCloud hidden, go to Settings> Reset all. Next, after restoring the original settings, the machine will proceed to set up the initial steps. If you find that there is no requirement to import the old iCloud account, the device is not attached to iCloud.
7. Check your device's IMEI
To check the iPhone you want to buy, test IMEI on your device. To check you go to the phone application, switch to the dial interface and type * # 06 # to check your device's IMEI, or you can go to Settings> General settings> About, then record that IMEI number issue the paper and check with the IMEI on the sim shell or Apple device inspection sites. Details how to check the IMEI you can see in the article How to quickly check IMEI on a smartphone.
Here are a few tips to show you how to check the old iPhone 6s, 6s Plus when you buy a device, you can also apply these tips to check other iPhone series.
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