Samsung Galaxy A72 Loudspeaker Replacement
Failure to replace adhesive seals during reassembly may compromise water resistance, even if the device functions normally.
- Use this guide for replacing the loudspeaker on your Samsung Galaxy A72.
- Purchase replacement adhesive for reattaching components during reassembly.
Step 1 | Heat the back cover
Prepare an iOpener and apply it to the back cover for at least two minutes.
- Use a hair dryer, heat gun, or hot plate if needed, but be cautious not to overheat the phone.
The display and internal battery are susceptible to heat damage.
Step 2 | Insert an opening pick
Secure a suction handle to the back cover's bottom edge, as close to the edge as possible.
If the back cover is cracked, the suction handle may not stick; try using strong tape or superglue to secure it.
- Lift the back cover with the suction handle to create a small gap between the cover and frame.
- Apply more heat if necessary to soften the adhesive further, following iOpener instructions to avoid overheating.
Insert an opening pick into the created gap.
- Slide the opening pick to the bottom right corner to slice the adhesive.
- Leave the opening pick in place to prevent the adhesive from resealing.
Step 3 | Slice the adhesive
Insert a second opening pick at the bottom edge of your phone.
- Slide the new pick to the bottom left corner to carefully slice the adhesive.
- Leave both picks in place to prevent the adhesive from resealing.
Step 4 | Slice the adhesive
If adhesive becomes hard to cut, it has likely cooled down.
- Reheat with iOpener for 1-2 minutes if necessary.
- Slide the opening pick along the left edge to cut adhesive.
Leave the opening pick in the top left corner to prevent resealing.
Step 5
Insert a fourth opening pick under the top left corner of your phone.
- Slide the pick along the top edge to slice the adhesive.
- Leave the pick in place at the top right corner, preventing resealing.
Step 6
- Insert an opening pick under the top right corner.
- Opening Pick slide along the right edge to cut remaining adhesive.
Step 7 | Remove the back cover
Remove the back cover.
- Clean the relevant areas with isopropyl alcohol (90% or higher) before applying new adhesive.
- Secure the new back cover using pre-cut adhesive or double-sided tape.
Apply strong, steady pressure to your phone for several minutes after installing the back cover.
For extra bonding time, place a stack of heavy books on top of your phone.
Step 8 | Unfasten the motherboad cover screws
Remove the motherboard cover using a Phillips screwdriver. You will need to unscrew ten screws, each measuring 4.5 mm long.
Step 9 | Pry up the motherboard cover
Insert the pointed end of a spudger under the right edge of the motherboard cover.
- Tilt the spudger downwards and use it to pry up the motherboard cover.
Step 10 | Remove the motherboard cover
Disconnect the motherboard cover.
Step 11 | Disconnect the battery cable
Disconnect the battery cable by prying the connector straight up from its socket using a spudger.
Step 12 | Disconnect the interconnect cable
- Disconnect the interconnect cable using a spudger.
- Pry the connector straight up from its socket.
Step 13 | Unfasten the loudspeaker assembly screws
Remove the seven 4.5mm Phillips screws using a Phillips screwdriver.
Step 14 | Pry up the loudspeaker assembly
- Position the spudger's pointed tip under the right edge of the loudspeaker assembly.
- Tilt the spudger downwards and use it to gently pry up the loudspeaker assembly.
Step 15 | Remove the loudspeaker assembly
Remove the loudspeaker assembly.
Apply new adhesive as needed during reassembly, ensuring surfaces are clean and degreased with isopropyl alcohol (min. 90% concentration).