Use this guide to replace the dual microphone in your iPad Air. [ … ] '''Warning:'''Be very careful when you isolate the battery isolation method in this guide is outdated, and may result using a battery blocker.''' The battery contacts are easily damaged, resulting in irreversible damage to the battery pins of the logic board, effectively destroying it. If you choose to isolate the battery this way, heed all warnings and work extremely carefully. board. If you choose to complete the guide without isolating the battery, avoid using metal tools except when completely necessary (like when removing screws) to prevent shorting the battery and damaging sensitive circuit components.''' components.