Phone · Samsung · Galaxy S5
Samsung Galaxy S5 Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy S5
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic opening picks
- Spudger tool
- Precision screwdriver set (Phillips #00)
- Tweezers
- Anti-static wrist strap
Parts / materials
- Replacement Galaxy S5 logic board
- Pre-cut display adhesive strips
- Isopropyl alcohol (99%)
Safety
- Wear eye protection when heating and prying glass screens.
- Ensure the battery is completely removed before disconnecting internal components.
- Use an anti-static wrist strap to avoid electrostatic damage to sensitive circuits.
Overview
Step-by-step
- 1
Remove Rear Cover
1 minPry up the plastic rear cover using your fingernail or a plastic opening tool inserted into the notch near the top power button.
- 2
Remove Battery
1 minLift the battery out from the recessed groove at the bottom of the battery compartment.
- 3
Remove SIM and SD Cards
1 minPress and slide out any installed MicroSD and Micro-SIM cards from their respective slots.
- 4
Unclip Home Button Cover
2 minUse a spudger to pop off the small plastic access door covering the home button connector on the back frame.
- 5
Disconnect Home Button Flex
2 minDisconnect the exposed home button ribbon cable using the flat end of a spudger.
- 6
Heat Screen Edges
3 minApply heat evenly around the perimeter of the screen for 2-3 minutes using a heat gun set to low temperature.
- 7
Slice Display Adhesive
5 minAttach a suction cup near the top of the display, pull up gently, and insert a plastic pick to slice the loosened adhesive.
- 8
Disconnect Display Cable
2 minGently tilt the screen up from the top edge and detach the display ribbon cable connector.
- 9
Remove Display Assembly
1 minLift the display assembly completely off the phone frame and place it safely aside.
- 10
Remove Midframe Screws
4 minRemove all ten Phillips #00 screws securing the plastic midframe to the rear chassis.
- 11
Separate Midframe Assembly
3 minPush firmly through the battery cavity while pulling the outer plastic bezel to release the midframe.
- 12
Disconnect Antenna Cables
2 minPry up the two RF coaxial antenna connectors from the motherboard using precision tweezers.
- 13
Disconnect Daughterboard Cable
2 minUnplug the USB daughterboard ribbon connector located at the lower section of the logic board.
- 14
Remove Logic Board
2 minLift the logic board out of the chassis, taking care not to snag any remaining cable leads.
- 15
Install Replacement Board
3 minPosition the new logic board into the frame, ensuring all flex connectors remain resting above the board.
After your Samsung Galaxy S5 logic board repair
Power the Galaxy S5 back on and test the logic board repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S5 job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S5 repair context in the encyclopedia, or open related DIY guides.
