Replace a worn battery using model-specific isolation, adhesive removal and calibration procedures while treating the cell as a fire risk.

Core ideas

  • Disconnect the battery before other internal connectors whenever the official sequence permits.
  • Use only the specified adhesive-removal method and never bend, puncture, squeeze or lever against the cell.
  • Inspect the replacement part, connector, date code and dimensions before removing protective films.

Decision rule

If the cell does not release using the documented method, stop; extra force can convert a routine repair into thermal runaway.

Apply it on your phone

Document battery health before replacement and repeat the same tests after calibration and several normal charge cycles.

Official sources

22 · Phone Technology and Maintenance

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