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 wanna restore my iphone 3gs... but some error 1015 become ....
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Sep 29, 2012 7:58 AMby ChrisJ4203,From this Apple Support docment http://support.apple.com/kb/TS3694
Error 1015: 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.
