Phone · Google · Pixel 5A 5G
Google Pixel 5A 5G Titan Security Chip Repair
Titan Security Chip Repair guide for the Google Pixel 5A 5G
Before you begin
Tools
- Precision T3 Torx screwdriver
- Plastic opening picks
- Fine curved tweezers
- Plastic spudger
- Microscope
- Hot air station
- Desoldering wick
- Heat gun
Parts / materials
- No-clean liquid flux
- 99% Isopropyl alcohol
- Replacement Titan security IC
- Display re-sealing adhesive strip
Safety
- Wear an anti-static wrist strap to prevent ESD damage to sensitive micro-circuits.
- Work in a well-ventilated area or use a fume extractor when heating soldering flux.
- Wear heat-resistant gloves and safety glasses while operating the hot air station.
Overview
Step-by-step
- 1
Power off the device
1 minTurn off your Google Pixel 5A completely and remove the SIM card tray using a SIM eject tool.
- 2
Heat the screen edges
3 minApply heat around the display perimeter using a heat gun set to 80°C for 2-3 minutes to soften the adhesive.
- 3
Slice the display adhesive
5 minInsert a thin plastic opening pick under the glass lip and slide carefully around all edges to separate the adhesive.
- 4
Disconnect the display cable
3 minGently tilt the screen open, remove the metal securing bracket with tweezers, and pop off the screen flex connector.
- 5
Remove the display assembly
1 minLift the display assembly completely off the phone body and place it in a safe area.
- 6
Unscrew the midframe
4 minRemove the 14 T3 Torx screws holding the graphite-covered midframe and motherboard shields.
- 7
Disconnect the battery
2 minPry up the midframe plate and use a plastic spudger to disconnect the battery flex cable immediately.
- 8
Unscrew motherboard fasteners
3 minRemove the remaining T3 Torx screws securing the motherboard assembly inside the rear casing.
- 9
Disconnect internal flex cables
3 minDisconnect the front camera, rear camera module, and antenna coaxial cables from the motherboard using a spudger.
- 10
Remove the motherboard
2 minCarefully lift the main motherboard out of the aluminum chassis and place it under your microscope.
- 11
Remove the EMI shield
5 minUse a hot air station at 330°C to heat and lift the metal EMI shielding covering the Titan security IC area.
- 12
Apply flux to security chip
2 minDispense a small drop of liquid no-clean flux around the perimeter of the Titan security chip.
- 13
Reflow Titan security chip
4 minHeat the chip with the hot air station at 350°C until solder joints melt, then lift the IC using fine tweezers.
- 14
Clean IC motherboard pads
5 minClean remaining solder on the board pads using copper solder wick and 99% isopropyl alcohol.
- 15
Position and solder replacement IC
6 minAlign the replacement IC under the microscope, apply heat until it self-aligns, and let the board cool.
- 16
Reassemble the device
10 minReattach the EMI shield, seat the motherboard back into the chassis, and reconnect all internal cables and screen.
After your Google Pixel 5A 5G titan security chip repair
Power the Pixel 5A 5G back on and test the titan security chip 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 Google Pixel 5A 5G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Google Pixel 5A 5G repair context in the encyclopedia, or open related DIY guides.
