SOLVED: iTunes error 4013 after audio ic repair [Intel BB_RF] - iPhone 7 - iFixit
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How to Fix iTunes Error 4013 on iPhone 7/7 Plus
Iphone 7 Error 4013 already? - GSM-Forum
how to fix iPhone 6/6 Plus Error 4013 4014 Occurred during Restoring itune iPhone try this tutorial : r/RepairPhoneUnlock