Galaxy SIII open to full lockscreen bypass

Days after a mobile enthusiast discovered a partial lockscreen bypass on a Galaxy Note II, another user has found a way to bypass the lock on a Galaxy S3 and gain full access.

Like the hacks reported earlier this week, Sean McMillan found an entry point through the Emergency Call feature.

From there, opening the phone without knowing the passcode, requires pressing the ‘Home’ (physical) button once and then hitting the power button “quickly”. That should be enough to give full access to the device’s home screen, McMillan said in a post on Seclists.org on Tuesday.

“Sometimes this method works straight away, other times it can take more than 20 attempts,” McMillan wrote.

McMillan bypassed the lockscreen on a Galaxy 3 model number GT-I9300, running Android 4.1.2.

<i>ZDNet</i>, which first reported McMillan’s discovery, confirmed the method worked on a Galaxy S3 running the same version of Android and found that after executing the bypass, the phone no longer requires a PIN, password or pattern to access the home screen.

The bug appears to work on S3s distributed by carriers in the US too, as well as older version numbers. <i>The Verge</i> used the method to successfully bypass a Sprint Galaxy S3 running 4.1.1, and the bug persisted until the device was rebooted.

The bug discovered by McMillan is on par with a one found last month in iOS 6.1, which also relied on a trick using the Emergency Call.

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