Why is Used Part Better Than New

We now only stock IMB tested used charging port and front camera for iPhone model 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 took from secondhand devices are programmed by Apple so all functions normally.

For the same reason, we are restocking back housing without small part for model newer than iPhone 8.