Why is Used Part Better Than New

We now only stock IMB tested used charging port and front camera for iPhone 8/8p and iPhone X Series.
Here's why:
The new parts (original or not) are not encoded and not working 9 out of 10 times.
The old parts taken out from secondhand devices are programmed by Apple so all function normally.

For the same reason, we are only getting back housing without small part for iPhone 8 and newer models.