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Aporte original por: Dave Allen ,

Título:

Bizarre problem after changing logic board

Texto:

Hi

Ok do I had a mint condition iPhone 4 which had an activation lock . I changed the board for one in an old iPhone 4 I had which I knew the iCloud details

All went well the phone powered up , I disabled FMI and signed out if iCloud

I then erased all content and settings and to my horror was greeted with the activation lock screen bound still to the iCloud of the logic board I removed ?

How is this possible ? Is there another component aside from the logic board that stores the phones serial number etc ? I'm baffled and have never seen this before in countless others I have done

Any help greatly appreciated 

Dispositivo:

iPhone 4

Estatus:

open