Recently we found some repair parts providers are selling a new screen with really nice price called”Screen of Google Pixel 2 XL Grade B”, what’s “Grade B”? Is it custom or copycat? What’s the difference of between Grade B and OEM? Today we will talk about this.
What is OEM, Grade B, Grade C and Custom?
OEM: original equipment manufacturer. According to wikipedia, an original equipment manufacturer is a company that produces parts and equipment that may be marketed by another manufacturer. Technically speaking, OEM screen will work just like the original screen.
Custom: original digitizer with replaced front glass. The front glass of original Pixel 2 XL is made of Corning Gorilla Glass 5, while the custom screen equipped with normal glass.
Grade B: factory defects. We all know that Pixel 2 XL has P-OLED screen, and P-OLED means plastic OLED, it is more durable than typical AMOLED. The flexibility of plastic gives some additional shock absorbance over glass. This durability also means POLED is less susceptible to cracking and shattering from dropping, which means the possibility of shipping damage is infinitesimal. So why does there grade B exist? They can only be the factory defective products.
Grade C: original worn screen with a lot scratches on front glass. The display of grade C is took from worn Pixel 2 XL phones and the glass is damaged.
How to spot OEM, Garde B and Grade C?
- Black display or off screen
OEM screen will perfectly work just like the original one after repaired, while the grade B has some defective mark on the screen. The marks are usually a cross or a arc-shaped, it’s obvious seen from the plate angle of view, when the screen is black.
Some grade B screen have visible black spot when the screen is white, it was caused by some LED inside the display damaged. All of the panels are built from millions of organic light emitting diodes, tiny little components that light up when current is applied to them. If the organic light emitting diodes damaged, it will shut down and that’s why there’s black spot on white screen.
3.Scratches on front glass
Grade C condition will some with heavy signs of deep scratches, or lot of scratches. It’s obvious seen in the front glass. While the OEM and Grade B are come with new and original front glass, Corning Gorilla Glass 5.
How to spot OEM, Grade B and Custom?
The difference of OEM and Custom is obviously seen in white display. Due to the replaced front glass, custom screen will be tiny visible yellowish while the OEM is pure white. (I spent couple hours trying to figure out the “yellowish” but failed…)
How does these four grades work?
All touch screen works.
OEM – Totally fine, work like the original.
Custom – Tiny visible yellowish in white display, work like the original.
Grade B – It will show cross or a arc-shaped mark on black display, and black spot on white display.
Grade C – Used display with a lot scratch on front glass, which is definitely the worst choice for repair.
In summary, the OEM gets the absolute priority of screen replacement, while custom one can be the secondary choice. Grade B will be the last chosen one. And grade C? Not recommended.
OEM P-OLED Screen Replacement for Google Pixel 2 XL – $105(or maybe less)