Once the battery is sufficiently loosened from the frame, slowly lift it out.

Remove the battery.

To install a replacement battery:

Apply new adhesive to the phone frame.

Gently lay the battery pack in the phone.

Temporarily reconnect the battery to the motherboard to ensure that the battery is properly aligned.

Once the battery is aligned, press it firmly in place with your fingers. Disconnect the battery from the motherboard, and resume re-assembly.

For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.