Samsung Galaxy S7 NFC Antenna and Charging Coil Assembly Replacement
This guide will walk you through replacing or repairing the NFC antenna and charging coil in your Samsung Galaxy S7, which requires removing the rear glass cover. You'll need new adhesive for reattaching the back cover.
Step 1 | Rear Glass
Opening your phone will compromise its waterproof seals.
- Have replacement adhesive ready before proceeding.
- Avoid liquid exposure if reassembling without replacing the adhesive.
Apply a heated iOpener to a long edge of the phone for about two minutes.
Reheating and reapplying may be necessary to achieve sufficient warmth.
- Follow the iOpener instructions to avoid overheating.
Use caution with alternative heat sources:
- A hair dryer, heat gun, or hot plate can be used.
- Be careful not to overheat the phone.
- The OLED display and internal battery are susceptible to heat damage.
Step 2
Apply a suction cup close to the heated edge of the phone, avoiding the curved edge.
The suction cup will not seal properly on the curved glass.
- For cracked back covers, use strong tape or superglue the suction cup in place and allow it to cure.
Lift the phone with the suction cup and insert an opening pick under the rear glass.
Excessive force can break the rear glass; only use metal tools for prying, not for lifting.
Due to curved glass, push upwards rather than parallel to the phone's plane.
- If trouble persists, reapply heat to soften the adhesive and try again.
- The adhesive cools quickly, so heating may be needed repeatedly.
Reheating is necessary as adhesive cools fast; repeat if necessary.
- Optional: Add a few drops of isopropyl alcohol to the gap for further adhesive weakening.
Step 3
Reinsert the iOpener and heat it until the adhesive softens.
Be careful not to apply too much pressure on the screen, which may cause damage.
Step 4
Slide the opening pick down along the side of the phone, separating the adhesive.
Go slowly so that the tip doesn't slip out of the seam — risk of damage to the phone.
- If sliding becomes difficult, reheat and reapply the iOpener before proceeding.
Leave the pick in place and grab a second pick for the next step to prevent re-adhesion.
Step 5
Continue the heating and cutting process on the remaining three sides, leaving a pick in place at each edge before moving on.
- Proceed with caution to prevent adhesive from resealing.
- Leave an opening pick in place on one edge, then move on to the next side.
Step 6
Lift the glass and remove it from the phone.
- Position your fingers under the edge of the glass to prevent damage.
- Gently pry the glass upwards, working your way around its edges.
Step 7
Reassemble by installing custom-cut adhesive strip on the back cover.
- If cleaning midframe with isopropyl alcohol, avoid touching wireless charging coil to prevent damage.
- Turn phone on and test after repair before applying new adhesive.
Without removing old adhesive, back cover may not seal properly; be cautious of reduced water resistance.
Step 8 | NFC Antenna and Charging Coil Assembly
Remove the eight 3.5mm Phillips screws from the NFC antenna and charging coil assembly.
Step 9
- Insert the spudger tip into the notch on the left side of the antenna assembly.
- Pry the antenna assembly up and out of the frame.
- Remove the antenna assembly.
Step 10
Use the flat end of a spudger to gently pry the charging coil assembly out.