Use the flat end of a spudger to lift the battery out of the midframe.

Check to make sure no ribbon cables remain stuck to the battery, and separate them carefully if needed.

If there is still adhesive holding the battery down, slowly pry the battery away from the midframe, taking care not to bend the battery.

The battery will separate more easily if you add a few drops of isopropyl alcohol along each side, to soften the adhesive beneath. High concentration (90% or greater) alcohol will not harm your phone's components.

Alternatively, you may apply heat to the midframe to soften the battery adhesive, but be very careful not to overheat the battery.

Don't deform or puncture the battery—it can catch fire and/or explode if damaged.

Never reinstall a damaged or deformed battery. Replace the battery.

Use a few strips of thin double-sided adhesive tape, such as Tesa 61395 or strips from a pre-cut adhesive card, to secure the replacement battery.