bought a second-hand mobile phone of and Apple but I don’t know how to check it?
will share with you a 12-step nanny-level machine inspection process. The sixth step is a method used by all second-hand mobile phone dealers. It is accurate and reliable!
Step one: Check whether the appearance and quality are consistent with the merchant's description.
Step 2: Drag the screen icon. You don’t have to be fast, but you must be careful. Go over all the corners of the screen to see if it will malfunction or disconnect. If it malfunctions and disconnects, you must not do it. ! After all, the screen is nearly half the price of a mobile phone.
Step 3: Test whether the volume keys and silent vibration are normal, then open the settings to see if WIFI and Bluetooth can connect normally.
Step 4: Check whether the phone’s face and fingerprints can be entered normally.
Step 5: Open the analysis data and see if there is any restart record on the phone. If there are "panic-full" English letters, please return it directly to the merchant!
Step 6: Look at the "GSX" data of the machine detector. If abnormal models such as resource machines and locked machines are displayed, please pass them directly. Because nowadays, for AIS and the like, the test data can be changed and is not accurate. This is also the method used by most second-hand mobile phones commercially!
Step 7: Open the phone directly, click Restore iPhone, and erase all content and settings. This step is mainly to prevent the phone from having an ID lock. After restoration, insert the card to activate. Be sure to remember to insert the card to activate! This is done to prevent the phone from being a stuck machine and to see whether the phone has a signal.
Step 8: Detect the mobile phone compass and rangefinder . Many people will ignore this, because if you need navigation when going out, you will rely on these two software, so be sure to check it carefully.
Step 9: Turn on the camera, take a white sticker, cover the phone camera, and see if there are watermarks and spots on the phone, whether it can zoom in and out normally, and whether it can focus normally.
Step 10: Check the radio reception of the phone, open the memo and say a few words to see if it can be played normally, then turn on the phone to see if the light sensitivity is normal.
Step 11: Open the control center, long press to adjust the brightness and see if there is "original color display". If not, the screen has probably been changed.
Step 12: Adjust the screen to the brightest, turn on the camera and record for half an hour. If the phone restarts or shuts down within half an hour, it means that the motherboard of the phone has been repaired or there is a problem. , please also return it directly. Have you finished learning
, brothers?
