This is the most important check for used buyers. A serial number lookup can sometimes verify if "Find My iPhone" (Activation Lock) is turned on.
| Position | Meaning | |----------|---------| | 1st | Factory location (F=Foxconn, C=China, D=Hon Hai) | | 2nd-3rd | Production line & week (approx) | | 4th-8th | Unique identifier (model, storage, color) | | 9th-12th | Unit ID / checksum | apple serial number lookup
If the device won't turn on, check the original packaging barcode , your original receipt , or sign in to your Apple Account to see a list of all devices linked to your ID. For historical records, you can sometimes find the serial number of any device used with your ID within your Apple Privacy Data. Essential Lookup Tools This is the most important check for used buyers
Find your Mac model name and serial number - Apple Support (SG) For historical records, you can sometimes find the