The most common failure in the iPhone is liquid crystal cracking (glass) due to falling the terminal, but please refer to this because we have posted the decomposition method of the liquid crystal in most models.
If you repair it yourself, you will be able to fix it at real cost, but there are still advantages and disadvantages.
If the liquid crystal glass cracking with the most failure is the basic decomposition method, other parts such as logic boards may be a little confusing because there are so many screws if you are not used to disassembling them.
It is high performance as it becomes a new model, but it is necessary to work carefully when disassembling by yourself because decomposition is also complicated in proportion to it.
Especially since iPhone6 is equipped with fingerprint authentication as a very useful function, because there is a sensor of fingerprint authentication in the cable portion of the home button, or let the disconnection by any chance, If you break it, you will never be able to use fingerprint authentication again.
If you cut it, you can use it as a button if you replace it with a third-party home button, but there is no fingerprint authentication function.
Because it is the place where the nerve is used most in this part in the repair shop, please pay special attention to the person who is doing iPhone repair for the first time!