HT201954: Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues
Learn about Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues
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Q: I purchased this phone on craigs list and they told me it just needed to be updated is there anything i can do to fix the phone?
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Aug 6, 2012 10:19 AMby xTAPOUTGIRLx,This error is typically caused by attempts to downgrade the iPhone, iPad, or iPod touch's software. This can occur when you attempt to restore using an older .ipsw file. Downgrading to a previous version is not supported. To resolve this issue, attempt to restore with the latest iPhone, iPad, or iPod touch software available from Apple. This error can also occur when an unauthorized modification of the iOS has occurred and you are now trying to restore to an authorized, default state.
