How to check the iphone7 modified machine

You can check the mobile phone serial number in the settings, and then go to the official Apple mobile phone website to check the serial number.

1. You can start from the following points: 1. Look at the serial number: the mobile phone serial number is like the ID card of the mobile phone. The IMEI number of each machine is unique. Generally speaking, it can be obtained from this Determine whether a machine is genuine. The identification method is as follows: Enter *#06# in the standby state of the phone. The string of numbers displayed on the phone is its motherboard serial number. Then look at the IMEI number on the box of the machine and take out the SIM card tray to check the IMEI number on the side. Three comparisons Or, see if they are consistent.

2. Look at the casing: The casings used in refurbished machines are generally imitations of the original ones, or the old casings are carefully processed, so the front and rear parts of the machine casing are prone to not closing tightly and leaving gaps. In large cases, the identification method is to carefully observe whether there are signs of warping or opening at the seams of the front and rear shells. Observe whether the two screws under the iPhone body have any traces of being touched by a screwdriver. For machines that have not had their casing replaced, the merchant sprays them with a spray like detergent before selling them. The surface of the old casing will immediately have a matte effect like a new one. If you don’t check it carefully, you will be fooled by the merchant. However, It won't take long for the spray paint on the casing to fall off. When purchasing, you must carefully observe the casing, because no matter how good the craftsmanship of the merchant is, it is not as advanced as the original equipment. If you look carefully, you can see uneven spray paint. Color cast and other phenomena.

3. Look at the usage records: Take a look at the games, text messages, phone book, call records, self-made ringtones and other items in the mobile phone to see if there are any records that have been used. If so, there are very large records. Suspected of renovation. In addition, during normal use, if the phone frequently automatically shuts down or crashes, it can be said with certainty that there is a certain problem with the motherboard or software of this phone.

4. Look at the price: As the saying goes, those who are greedy for small gains will suffer big losses. Before buying a mobile phone, it is best to check the price of the mobile phone on the website. If the price quoted by the merchant is "very cheap", you should be wary. Such "cheap" mobile phones are either refurbished mobile phones, products from informal channels, or accessories. "What's missing is a pound." It is recommended to buy mobile phones from regular sales stores with good reputation and high service.