Phone · Google · Pixel 3a
Google Pixel 3a Titan Security Chip Repair
Titan Security Chip Repair guide for the Google Pixel 3a
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- T3 Torx screwdriver
- Spudger tool
- Tweezers
- Hot air rework station
- Magnifying glass
Parts / materials
- Liquid soldering flux
- 99% Isopropyl alcohol
- Cotton swabs
- Display replacement adhesive strips
Safety
- Wear safety glasses when heating glass and using hot air tools.
- Work in a well-ventilated space to avoid breathing in flux fumes.
- Disconnect the battery immediately after opening the device to prevent short circuits.
Overview
Step-by-step
- 1
Heat Display Edges
3 minApply heat evenly along the front glass edges for two minutes to soften the perimeter adhesive.
- 2
Apply Suction Cup
2 minPlace a suction cup on the bottom glass edge and gently pull upward to create a slight gap.
- 3
Slice Perimeter Adhesive
4 minInsert a plastic prying tool into the gap and carefully slide along the perimeter to slice through the display adhesive.
- 4
Pivot Display Open
2 minSwing the screen open toward the left side like a book, taking care not to strain the ribbon cable.
- 5
Remove Display Bracket Screws
2 minUnscrew the T3 Torx screws securing the metal display cable shield.
- 6
Disconnect Display Cable
1 minUse the flat end of a spudger to pry the display connector directly up off the board.
- 7
Unscrew Midframe Assembly
5 minRemove all T3 Torx screws holding the plastic midframe to the phone chassis.
- 8
Detach Midframe
3 minPry along the midframe edges using a plastic tool and lift the frame away.
- 9
Disconnect Battery Connector
1 minPry the battery flex cable straight up from the motherboard to prevent electrical shorts.
- 10
Remove Logic Board Screws
3 minExtract all remaining T3 Torx screws anchoring the main logic board to the casing.
- 11
Extract Logic Board
2 minLift the logic board out of the phone chassis from the bottom edge and place it on a clean mat.
- 12
Remove EMI Shield
3 minGently pry off the metal EMI shield covering the Titan M security chip using tweezers.
- 13
Apply Liquid Flux
2 minDispense a small drop of liquid flux along the pins of the Titan M security chip.
- 14
Reflow Security Chip
4 minPass targeted hot air over the Titan M chip using a nozzle for 30 seconds to reflow solder joints.
- 15
Clean Board Residue
3 minWipe away excess flux residue from around the chip using 99% isopropyl alcohol and a cotton swab.
- 16
Reinstall Logic Board
2 minLower the logic board back into the rear housing and align all mounting holes.
After your Google Pixel 3a titan security chip repair
Power the Pixel 3a 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 3a 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 3a repair context in the encyclopedia, or open related DIY guides.
