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
kodalifromhyderabad
Level 1 (0 points)

Q: plz help meeeeee

hi frnds am using iphone4 i had downgraded to 4.2.1 after downgrading my phone went to blank

sound and vibration is working but but the screen was blank

plz help meeeeeeeeee

iPhone 4, iOS 5

Posted on Oct 12, 2012 9:39 AM

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kodalifromhyderabad

Q: plz help meeeeee

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