LG G3 Logic Board Repair
Complete guide to LG G3 logic board repair. Cost estimates, difficulty level, time required, and environmental impact.
🌍 Share Your Environmental Impact
Inspire others to repair instead of replace! Share how much CO₂ you're saving.
💰 Cost Breakdown
💡 Tip: Costs vary by location and repair shop. Authorized service centers typically charge more than independent repair shops.
🔧 Repair Overview
Logic Board Repair is one of the most common repairs for LG G3. This repair involves replacing the damaged logic component with a new or refurbished part. The process typically takes 3-6 hours and requires difficult skill level.
🔧 Required Tools
🔩 Replacement Parts
What You'll Need
- Replacement logic part (OEM or aftermarket)
- Precision screwdriver set (Phillips #000 or pentalobe)
- Opening tools (plastic spudger, suction cup)
- Adhesive strips or glue
- Clean workspace with good lighting
Step-by-Step Process
Step 1:
Power off your phone before beginning disassembly.
Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover.
Pry the back cover up to separate its plastic clips.
Step 2:
Lift the back cover to release the rest of the plastic clips and remove it.
In case you can't lift the back cover completely, slide your fingernail or your prying tool around the midframe to release the remaining clips.
To reinstall the back cover, press it firmly into place until you hear a snap from the plastic clips to form a seamless connection with the rear side of the phone.
Step 3: Battery
Use a fingernail or a prying tool at the marked notch to lever the battery out of its recess.
Step 4:
Lift the battery out of its recess and remove it.
Step 5: Loudspeaker
Remove the four Phillips #00 screws (4 mm length).
Step 6:
Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover you used earlier to remove the back cover.
Pry up the plastic panel, including the loudspeaker, until you can get a good grip.
Step 7:
Carefully remove the plastic panel including the loudspeaker by gently pulling it away from the phone assembly.
Step 8: Motherboard Cover Assembly
Remove the eight Phillips #00 screws (4 mm length).
Step 9:
Insert an opening pick between the bottom right corner of the motherboard cover and the motherboard.
Pry up the motherboard cover to open the plastic clips which hold the cover in its place.
The clips can be a bit resistive. If you're having trouble prying up the motherboard cover, slightly rotate the opening pick sideways to make the process easier.
Work your way along the right edge.
Step 10:
Carefully lift the right edge of the motherboard cover.
The remaining plastic clips should open during this process or can be unhinged easily by hand.
Remove the motherboard assembly.
Step 11: Motherboard
Use a spudger to pry up and disconnect the display flex cable.
Step 12:
Use a spudger to pry up and disconnect the digitizer flex cable.
Step 13:
Use a spudger to pry up and disconnect the rear camera flex cable.
Step 14:
Use a spudger to pry up and disconnect the front camera flex cable.
Step 15:
During these next few steps, make sure to avoid damaging the flex cables you disconnected.
Slide an opening pick under the bottom right corner of the motherboard and slowly pry it out of its recess by rotating the opening pick sideways.
Step 16:
Slide the opening pick under the right edge of the motherboard where the SIM card slot is located and pry it up by rotating the opening pick sideways.
Step 17:
Grab the top section of the motherboard and carefully lift it out of the phone.
📖 Repair guide provided by iFixit - The free repair manual. Licensed under CC BY-NC-SA 3.0.
iFixit Difficulty: Moderate | Time: NaNh NaNm
DIY vs Professional Repair
✋ DIY Repair
- ✅ Lower cost (parts only: $180-$480)
- ✅ Learn new skills
- ❌ Risk of further damage
- ❌ No warranty
- ❌ Requires tools and time
🔧 Professional Repair
- ✅ Expert installation
- ✅ Warranty included
- ✅ Faster turnaround
- ❌ Higher cost ($300-$800)
- ❌ Need to find reputable shop
Environmental Impact
By choosing to repair your LG G3 instead of replacing it, you're preventing approximately 41 kg of CO₂ emissions. Manufacturing a new LG G3 generates 61 kg of CO₂, while this repair only produces about 20 kg of CO₂. That's a 67% reduction in carbon emissions!
Get a Personalized Repair Estimate
Upload a photo of your LG G3 and get an AI-powered cost estimate in seconds. See exactly what's damaged and how much it'll cost to fix.