Remove the battery.

Use isopropyl alcohol and a lint-free cloth to remove any remaining adhesive from the battery well.

Temporarily re-connect the battery connector to its motherboard socket. This ensures that the battery will be properly aligned.

Apply stretch release adhesive strips, double-sided tape, or pre-cut adhesive strips to the battery well.

Lay the battery in the phone and press it firmly in place.

Disconnect the battery connector from its motherboard socket and resume reassembly.