Posts tagged with: android power user
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    After you've used your smartphone or tablet for a good, long time, eventually you're going to want to get a new one. What are you going to to with your old one? Will you put it in a drawer and let it collect dust? Or will you give it to a friend or family member, or maybe even sell it? Whatever you end up doing, it would be wise to run it through a "factory reset" before letting it leave your hands! In this video we'll go through the steps necessary to wipe four different devices, the T-Mobile G2, Samsung Galaxy Nexus, Droid RAZR HD, and Nexus 7. We'll show you how it's all done on devices ...

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    We've talked about how to flash an image using ROM Manager, but if you're more comfortable with a keyboard and mouse, fastboot might be easier for you to use. You'll need to be aware of some limitations and details before you dig in. Hit play, and let's find out just what it take to flash an image using fastboot. Fastboot vs. ROM Manager Fastboot doesn't flash ROMs the same way as ROM Manager. Rather than flashing pre-packaged ROMs, flashboot lets you target the partition that you want to flash: data, recovery, system, etc. Image.img vs. Update.zip When using fastboot, sometimes ROMs come ...

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    Everything we've been learning in the Android Power User series thus far has been setting the stage and getting us ready to flash whatever Custom ROM we want on our devices. We've learned about unlocking and rooting, we've learned about Recovery ROMs and system images, now we're going to take a look at an app called ROM Manager that makes use of a rooted environment and Clockwork Mod Recovery to make flashing Custom ROMs very quick, super easy, and something that you can literally do every day. Every day? Why would anyone do that? I run CyanogenMod Nightlies which are, as their name ...

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    Android is made up of a small collection of "images", each with its own specific job. Last time we talked about the Recovery Image, today we're going to dig into the System Image -- the funnest one of all! What is the System Image? In desktop and laptop computers, the System Image is basically the operating system (Windows, Mac, Linux, Unix, etc.) that you spend all your time in. You turn on your computer, wait while it boots, then run all your apps and do all your work on the desktop which lives inside the System Image. On Android it's not that dissimilar. When Android boots up it takes ...

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    ClockworkMod Recovery, generally shortened to "CWM", is one of the most popular custom recoveries for Android-powered smartphones and tablets. Originally developed by Koushik Dutta, or "Koush", CWM lets power users do all kinds of really powerful tasks that aren't included in the stock recovery on most devices. What are Images? No, we're not talking about pretty pictures that are worth a thousand words, in this context an "image" is essentially a self-contained operating system. Most of us are familiar with the "System" image, it's the part of Android that we use every day. There is also ...

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    ODEX and DEODEX are terms that are thrown around a lot when we're talking about Custom ROMs. Some ROMs are DEODEXED, others are not. What does that mean and why do we have them? If you haven't already watched the last couple episodes of Android Power User, you might want to. In those episodes we talk about the JIT Compiler, and the Dalvik Cache and Dalvik VM. If you've already watched those or have a solid understanding of them, let's dive right in! Android apps are stored in .APK files (that stands for "Android Package", in case you were wondering). Like we talked about, the files ...

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    In today's episode of Android Power User we're going to learn about the Dalvik VM and Dalvik Cache, why they're named the way they are, what they do, and how they do it. "Dalvik", it's a word that gets thrown around when you're talking about custom ROMs, particularly when flashing a new ROM and the need to "Wipe the Cache". Today you'll find out what that means (just in case you didn't already know). In our last episode we talked about JIT, or "Just In Time", which is the compiler built into newer versions of Android. We sort of put the cart before the horse with that one, but it helped ...

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    JIT is one of those newfangled acronyms that are used in business today. It builds on the concept that having inventory on-hand is expensive, and in an effort to cut costs, inventory can be reduced to only that which you need "right now". The theory follows that you order only the supplies that you need for your current production run so they're delivered "just in time" -- JIT. In computing, it's not that different. Just-in-time compilation (JIT) -- sometimes called "dynamic translation", is one way to improve the performance of apps at runtime -- but how it does so is a little confusing. ...

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    What is the "kernel"? We have thrown the term around quite a bit, but we haven't really dug into what it is and what it means, and why is it called that? The term doesn't derive from "colonel", a rank in the military, instead, it refers to fruits and nuts. In the practical world, the kernel is the softer, usually edible part of a nut, or seed and is contained within its hard shell. When talking about smartphones, tablets, and even computers, the kernel isn't that much different... though I wouldn't recommend you eat it. Think of it like popcorn. If you try to eat a popcorn kernel without ...

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    Your Android's recovery image is normally responsible for flashing over-the-air (OTA) updates from your phone's manufacturer (Samsung, HTC, Motorola, etc.), but the recovery image is even more important if you want to customize your Android with a custom kernel or custom ROM. Kind of like dual-booting on a desktop computer, Android is split into multiple "images", such as your "system image" where the operating system itself runs, and the "recovery image". The recovery image is like a miniature operating system that is only responsible for flashing updates and related tasks. Booting into ...

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    Unlocking and Rooting. They're two words that we throw around all the time, and sometimes it seems like they're used as synonyms.  They aren't the same thing, but it's not hard to see why there may be some confusion. Let's tackle unlocking first, since that's what usually comes first in the process. What is Unlocking? When we're talking about "unlocking and rooting" your phone or tablet, the "unlocking" part has to do with unlocking the bootloader. If you don't remember, we talked about the bootloader in our last episode of Android Power User. If you haven't guessed, the bootloader comes ...

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    If you're running the ROM that came on your phone you've probably seen at least one update come over-the-air (or OTA). These updates are built, tested, refined, packaged, and eventually pushed to your smartphone or tablet by the device's manufacturer. Sometimes updates come quickly, other times they can take forever -- or may not come along at all. Regardless, if you're running stock, you don't really have to do anything to get whatever updates may come. They just magically show up one day on your phone and give you the option of installing them. People who run custom ROMs, however, aren't ...

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    This is the first episode of our new series, Android Power User, where we talk about technology, definitions, and concepts to help regular Android users become Android Powerusers! The bootloader, in almost any computing environment (not just Android), is executable code that runs before the operating system loads and starts to run. Distilled down to its most basic function, the bootloader contains instructions to boot the operating system. Bootloaders are specific to the hardware upon which they're running which explains why every kind of phone and tablet, as well as every laptop and ...

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