Why is my phone just black?

Hi REjan ronaldo,

It sounds like everything on the phone seems to be working, but you just can't see anything on the screen, is that right?

Chances are pretty good that the OLED display got damaged in the fall. The OLED display is actually a separate layer behind the glass on the front of the phone, and it's entirely possible for the delicate electronics on the OLED sheet to be damaged without seeing anything wrong with the front digitizer glass.

I'd say your best bet for getting your phone working again would be to replace the screen. iFixit has a guide that gives step by step instructions for doing that repair.

iPhone X Screen Replacement - iFixit Repair Guide

You can find replacement parts on all the major suppliers like eBay, Amazon and AliExpress; do a search and pick the one that suits you. For those screens you have three choices on aftermarket displays:

1. LCD - These are going to be the cheapest option. Due to the need to add a backlight, the display is going to be thicker and will consume more power, meaning a shorter battery life. Also, since the LCD is on glass, it won't extend to the curved edges of the display, so your picture will be slightly smaller than the original.
2. Hard OLED - These are OLED displays that are printed on glass. They have the same issue with size as the LCD since you can't bend the glass to fit the curved edges of the screen, but it's generally minor. These again will be cheaper than the Soft OLED screens, but more expensive than the LCDs. Thickness and performance will be comparable to the original screens, but supposedly they're more fragile than the Soft OLED screens due to being glass rather than plastic.
3. Soft OLED - These are what is used on the original screens. The OLED circuitry is printed on flexible plastic sheets rather than glass, which means the edges can be curved to fit all the way to the edge of the glass. Naturally, these are the most expensive, but since the iPhone X is now an "older" model, prices have dropped considerably. I recently purchased a couple of Soft OLED screens for as low as $35-40.

You will need to transfer the front earpiece assembly from the old screen to the replacement. Be very careful with both opening the phone and removing this part, because if you damage it your Face ID will be disabled and cannot be fixed once that happens unless you take it to Apple and pay them to replace the screen.

Also, have at least a couple of sheets of precut adhesive on hand to resecure the display to the phone. They're kind of easy to mess up, and having an extra means you won't have to wait to put your phone together while you reorder if it goes wrong.

Always follow the guide and disconnect the battery as the first step, and make reconnecting the battery the last step. Bad things have been known to happen when connecting and disconnecting the screen with the battery plugged in.

That should get you going; let us know how it works out for you.