Us Cellular Lg: G3 Screen Replacement [updated]
Title: [GUIDE] US Cellular LG G3 (LS990/VS985) Screen Replacement – Tips & Pitfalls Post: Hey everyone, I just finished replacing the screen on my US Cellular LG G3 (Model: LS990/VS985 – check your sticker behind the battery), and I wanted to share a solid roadmap. This is NOT as simple as a lot of YouTube videos make it look. Read this before you buy parts or pick up a screwdriver. The Short Version: This phone has two separate issues: 1) The LCD is notoriously fragile, and 2) The chassis design is a pain. You can do this, but go in with your eyes open.
1. Identify What You Actually Broke
Cracked glass only, display works perfectly? Stop. You cannot safely separate the glass from the LCD on this model without specialized equipment (a hot plate and wire). 99% of home attempts ruin the LCD. Buy a full "Screen Assembly + Frame" (aka "LCD and Digitizer with Middle Frame") . Black screen, no touch, or flickering? You need the full assembly anyway. US Cellular Warning: Make sure the part listing explicitly says "Compatible with LS990/VS985" (Sprint/Verizon variants). The GSM models (D851, D855) have slightly different antenna layouts and connectors.
2. Parts & Tools (Don't Skimp)
Part to buy: "LG G3 LCD Screen Replacement with Front Housing/Frame (Black/White)". Expect to pay $35-55. Tools you MUST have:
JIS #00 screwdriver (Philips #00 can work, but JIS fits LG's screws better to avoid stripping) Plastic opening tools (guitar picks work best) Spudger Tweezers Hairdryer or heat gun (low setting) Small containers for screws (they are different lengths!)
3. The Step-by-Step (Critical Notes) Step 1 – Battery & SIM: Remove battery, SIM, and microSD card. Do not skip this. Step 2 – The Back Cover Screws: Remove all tiny screws from the back. Key tip: There are 2-3 screws that are shorter than the others. Draw a map on a piece of tape or use an ice cube tray. If you put a long screw in a short hole, you'll puncture the motherboard. Step 3 – Separating the Midframe: Use a plastic tool to pry the plastic midframe away from the phone. Start at the bottom by the charging port. It's clipped on tightly – work slowly. Step 4 – Disconnect Everything: You'll see the motherboard. Gently disconnect: us cellular lg g3 screen replacement
Battery connector (first!) Display ribbon cable (it's under a metal shield – pry that up carefully) Touch sensor connector Front camera, rear camera, and power/volume flex cables
Step 5 – The "Hot Swap" of the Daughterboard: The charging port and headphone jack are on a small board at the bottom. You'll need to transfer this to the new frame. Common failure point: The antenna cable runs along the bottom and is very easy to tear. Use tweezers. Step 6 – Transferring Small Parts: This is tedious but mandatory. Move over:
Earpiece speaker Vibration motor (tiny, easy to lose) Power/volume button ribbon (careful – it's glued) Proximity sensor rubber gasket (don't lose this or your screen will stay black during calls) Title: [GUIDE] US Cellular LG G3 (LS990/VS985) Screen
Step 7 – Installing the New Screen: The new frame usually has adhesive pre-applied. Peel the liner. Press the motherboard and bottom board into place. Connect the display ribbon and battery LAST. Step 8 – Test BEFORE Closing: Put the battery in, hold the midframe on (don't screw it yet), and power on. Check:
Touch response on all corners No dead pixels or backlight bleed Proximity sensor (cover the top front with your finger during a test call) Cameras, speakers, buttons