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Justin Case-

Justin Case

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About Justin Case

Justin Case is a 30yr old father of four. He has an ever changing array of Android devices, and an eye for mobile security.

Latest Articles

Samsung Aims To Block Root Exploits And Tighten Up Security With Latest Exynos Galaxy S4 Update, But This Is A Good Thing

Note from Artem: The post's author, Justin Case, also known as jcase in the Android community, is an xda Elite Recognized Developer, AP team member, and

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Note from Artem: The post's author, Justin Case, also known as jcase in the Android community, is an xda Elite Recognized Developer, AP team member, and an all-around knowledgeable guy when it comes to Android's internals. When he speaks, I tend to listen.

This week, we saw a new kid among Android decompilers hit the street - JEB. JEB is a full featured, commercial dalvik decompiler aimed at security researchers and reverse engineers. Although many other decompilers exist, such as DED, Androguard, baksmali, dex2jar, undx, etc and most of them are free and work quite well, JEB comes with features not seen in most free tools:

When the Droid DNA was first announced, we were all surprised to find that the bootloader was unlockable at HTCdev.com. Because of this, the device actually got root, recovery, and custom kernel days before the official release. Unfortunately, by the time the device became available in retail channels, Verizon pulled the plug and it was no longer unlocked through official means.

While we were able to test this process on the Virgin Mobile variant, it has not been tested on the Sprint version. It's not advised that you even attempt this on the Sprint variant until we've been able to test it first.

[Exclusive] How To Root The AT&T HTC One X On Version 1.85 (Or Earlier)

How To Root The AT&T HTC One X On Version 1.85

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While giving the AT&T HTC One X's firmware a look over, I ran across a a vulnerability that would allow us to gain root access. It turned out not to be all that useful at the time, as another root was released the same day. With the latest 1.85 firmware leak, the previously published root has been fixed, making the one I found earlier useful once again.

Yesterday, a signed Gingerbread RUU was leaked for the HTC Incredible 2 by MobileUnderground member Football. xgunther and I over at the AndIRC Incredible 2 chat repacked it and made it root-friendly.

From Chingy and TeamAndIRC comes Maintenance Release 2 for the HTC Thunderbolt. The OTA update should be hitting stock phones on June 15th, but we're giving it to you early.

Neither z4root nor SuperOneClick is currently working on the Charge (though I'm sure someone will come up with a one-click method soon enough), but guess what - Gingerbreak sure does. Follow these instructions, and you should have root and full /system unlock on your Droid Charge in a few minutes. Credit goes to the Exploid Crew and unnamed testers.

Update #1: Skype is investigating the issue, we've been told.

One of the most popular questions about rooting the ThunderBolt is how to undo the process and return to stock, which renews your eligibility for customer support. Well, here you go:

HTC tried to stop us. They made signed images, a signed kernel, and a signed recovery. They locked the memory. In short, the ThunderBolt is their most locked-down phone to date.

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Today, Jamezelle and I ripped apart the leaked system dump from the yet-to-be-released Verizon Samsung Fascinate and patched together six live wallpapers that are not present on other Galaxy S devices.

Update: Tim Bray responded in our comments letting us know Trevor Johns, a hands-on guy in the Android back-rooms, was the author of the post.
After we blew the faults behind Google's License Verification Library out of the water last week, Google's Tim Bray promised us some tips for protecting our applications against piracy, and in the latest post at Google's official Android blog he delivered them. Tim's article is loaded with easy to follow sample code, and advice that just makes sense. Mr. Bray covers several protection methods including:

We received an email from David Keyes at KeyesLabs today, with a detailed analysis of piracy in various countries. For those that don't know, David is the author of the battery saving app Screebl, and the open source licensing library AAL. A true pioneer in Android app copy protection.

 

[Update: 8/24/10 @ 7:45 PM EST by Aaron] Tim Bray responded to Justin's article, but seems to have misunderstood the goal. Thus, Justin has written a follow-up article here.

AP

Those of you who actually managed to get your hands on an enTourage eDGe dualbook ebook reader/tablet/notepad device thingy (it's been in low supply lately) and have been waiting for it to be rooted just got your wish. Colin O'Dell and myself with the help of Sean and Jamezelle were able to root the eDGe, with full adb access.