The iphone is expensive. It is well known that sometimes it is a good choice to buy some nice second-hand iphones. However, the second-hand trade is very deep, many times we do not know that we face a second-hand iphone will have quality problems. Small series for everyone summed up more than 10 buy second-hand iphone skills, through these techniques can quickly detect some of the features and quality of the machine.
Fingerprint Identification System: This simple, direct access to set-touch ID and password set a try.
WiFi: Open wifi off router 1 m signal Mange is normal
Gyroscope: Open compass, right to level, shake iphone, numeric change is normal
Camera Focus: Find a smaller thing, click on the screen, become clear to focus on the normal
Flash: On the top of the control center, turn on the flashlight
Bluetooth: Get another iphone and match it with
Vibration: Toggle Mute Switch
Query ID Lock: www.icloud.com. Replaced by. Landlord level not enough to send link)
Headphones: If the headphone jack is not available, it may be the motherboard damage
Distance sensor: After the phone with something cover distance sensor, can black screen is normal.
Microphone: Open a voice memo, a recording is known
There is no network lock: Turn off the data roaming in the cellular data, the built-in card affixed to the office can not be online after closing. If the application named "QCard" must be a built-in card-sticking machine
There is no disassembly: Open the player, put a music, the sound of the hand to cover death, the voice is significantly smaller is not demolished the machine, the equipment to dismantle the speaker seal must be damaged.
Brush After completion of the above detection (to detect whether there is a lock or built-in card mounter)
No jailbreak machine restore factory settings, jailbreak machine brush, normal no problem
actually these techniques Smart detection of quality points you may know, but came to buy second-hand iphone when it is not necessarily able to think of how to detect, so you might as well put this tutorial collection, perhaps come in handy oh.
