If possible, drain the battery before disassembly. When the battery is charged, there's increased risk of a dangerous thermal event if the battery is overheated or damaged during repairs.

If your display is cracked, completely cover it with packing tape to contain the glass shards and avoid injury.

Prepare an iOpener and heat the front of the phone along its right edge for about two minutes, or until it's slightly too hot to touch. This will help soften the adhesive securing the display.