Apple Self Repair Guides

Transferring the Serial Number

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When replacing a top case, retain the customer's top case until the repair is complete. Before installing the replacement top case, transfer the serial number from the original top case to the replacement.

Caution: It is imperative that you copy the correct alphanumeric characters. Keep in mind that Apple serial numbers use the numbers 1 and 0 instead of the Roman letters "I" and "O."

1. Locate the blank space for the serial number on the battery-bay area of the replacement top case.
2. On the inside surface of the replacement top case, use a fine-tip permanent marker to write the original serial number clearly and legibly in uppercase box letters.