Remove the battery.

Do not reuse the battery after it has been removed, as doing so is a potential safety hazard. Replace it with a new battery.

To install a replacement battery:

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.

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

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