How to verify whether the internal accessories of iphone6 have been replaced, such as camera?

Now hackers are not easy to see from the appearance of the system, and some mobile phones can be refurbished into hackers. Buying a mobile phone was cheated! Remember, if you buy second-hand, you must ask for disassembly. If conditions permit, it is best to go after sale. I went there to test you and teach you several methods. You turn the brightness of the mobile phone to the maximum, and hold down the screen on the right lower foot of the mobile phone with your thumb. Press the screen, hard, but not too hard! See if there is a waterline. Water grain is the feeling of throwing a stone into the water and seeing the waves. That's an assembly screen, not original! Then take apart the machine. There are two blue rings on the two screws of the disassembling machine! Then open the back cover to see if the battery motherboard is loose, especially the battery. The original mobile phone battery is very tight, and any looseness is problematic! See if there's anything missing! There is a cover on the battery! Attention! If there is a test paper in the phone, see if the test paper changes color. Red stands for water, but white is not. Don't listen to the internet saying that the dripping test is the original screen. It is so boring. Now you know it's fake! That's basically it! Then there is the detection software! See if it runs smoothly! After the test, download another one to test the hardware, and use it to check whether there are any problems with the hardware of the mobile phone, such as positioning, camera and receiver ...................................................................................................................................... In addition, many methods on the Internet are published by scammers. According to what they say, you can't detect anything. Finish all the tests and see if there is any problem with the serial number! Four yards in one shot! SIM card slot, *#06#, mobile phone box and inside the mobile phone have serial numbers, and all four are the same! If not, then there is a problem! In short, you asked for disassembly. You can go back if you don't open it! Save the saliva! Disassemble the machine, .............. Remember! Hope to adopt … hope to adopt … I don't know how to ask!