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imcool wrote: hello members,
I soldered an EFI chip bought off from ebay on this macbook pro 11,1 and now there is no SERIAL number in the macbook. I am trying to login with icloud credentials in imessage but its giving error " AN ERROR OCCURED DURING AUTHENTICATION". Please tell me how to fix either imessage or serial numnber?
I have serial number at the back of the plate.
Regards
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