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5

Performance has nothing to do with battery voltage. The reason is that the flash memory is "weared" and therefore slower and less responsible. My Nexus 7 (1st generation) is also very slow now and I have almost no apps on it. You can read here: Why Android Phones Slow Down Over Time, part "No Solid-State Drive TRIM" No Solid-State Drive TRIM The ...


4

Simple answer: Yes, but it's usually not noticeable and won't impact a device's ability to function as expected during it's lifetime. Full Explanation: Apps CAN leave traces of information behind when uninstalled. These are usually empty folder and misc. log files, but can also include files created by the application but are assumed that the user would ...


3

For versions above 2.3.6, you could check the Google Developers page for the stock images for the nexus phones. They could provide a context for the sizes of pure Android. There is another site i had seen comparing all the features of all the versions of Android. I can't seem to remember the name though Edit: Found the site here.


3

Because the devices that have hanging problems are not the ones with better processors and more RAM. Unlike iPhone, where there's only the expensive devices, Android runs on a whole range of devices. At one end, there are the flagships from the big manufacturers, which have a lot of effort put into them to make sure the animations are silky smooth and there ...


3

Phones use Solid State Drives (SSDs) for storage instead of traditional Hard Drives (HDDs). This is because carrying and jostling HDDs can cause hardware problems. Solid State Drives, however, get slow as you fill them up. So when you start to fill up your phone, its storage gets slower. This means that it takes longer to read the code from storage into ...


3

The official Google Developers site has the full instructions and image repository on how to install a factory image for any Nexus device, including your "nakasi" Nexus 7 2012. I recommend 4.4.4, but you are free to go back as far as you want until you're comfortable with it's use. Cyanogenmod also has a stable 10.2 version (Android 4.3) - you can download ...


2

If its downloading 1 file from 1 site - barely works: Its offloaded to modem. If its downloading via torrent - Might work harder; decrypting, hashing, etc... Basically Downloading takes little CPU -----> I am gonna guess youre asking "Why does downloading eat my battery so hard?" If that is the case: Then Think of your Cell(3g,4g,etc) and Wifi As giant ...


2

Resetting a Device that's Off Power down your device. Before you begin the reset procedure, you will need to completely power your device off. (If the device is frozen, you can pull the battery out to turn it off.) Press and hold the recovery buttons. The buttons vary from device to device, so you may need to look up the instructions for your particular ...


2

I understand that read/write speeds are dependent on what the phone is, and what the SD card is, but since both are flash memory, I thought the read/write times would pretty much be around the same. That is a wrong assumption. While they're all flash technology, there's a very wide certain in the speed of the storage. A Class 2 SD Card has a minimum ...


2

You can use the highly functional nexus root toolkit to do pretty much anything you need to on your Nexus device. Nexus Root Toolkit It allows rooting, return to stock, recovery and everything else you would need to repair your nexus 7 2012 WiFi aka 'grouper' / 'nakasi'. You can flash custom roms with it also. Other tools include unlocking or locking ...


2

As a user, and not a developer, this is not an effect you should concern yourself with. For operations like disk defragmentation or use of flash memory as virtual memory, the sustained high disk write rates can wear out flash memory quickly. But "normal" usage by a human will not produce enough writes to create a wear issue. Let's take the sleep app as an ...


2

Generally speaking, any system app you can disable can safely be disabled. Core system apps will have the disable button greyed out. You can see this if you open App info for the Settings app itself. Go ahead and disable all Google apps you don't want.


2

It's possible that as you use your phone, the apps themselves becomes slower, because it is managing more of your data. A music app may work blazing fast when you've only got ten music in your library, but then you've collected about a hundred, and the database accesses becomes slightly slower as it's trying to generate the thumbnails or search through the ...


1

The problem is specialization! Apple's iOS is optimized for a small set of specialized Apple processors, which are ARM-based but because of e.g. custom extensions are able to do a lot more than the specification. Each app is compiled for every set of hardware (like one binary per CPU+GPU combination). Android needs to work on many different CPUs (Qualcomm, ...


1

The most probable answer is the speed of the NVRAM (or hard drive). When an application loads, it needs to read the application into memory - Hard drives and sd cards (but not so much SSD cards) are very slow to read and write, and this is most likely the bottleneck. A typical hard drive has a read speed of 100 Megabytes per second and SD card can vary ...


1

You might be having lots of data, including pictures and videos, and others that is media from social apps, including WhatsApp and FaceBook .. get a back up of that data, free some space, also delete unnacesiry apps, like those used for cleanups, hope this helps you run the phone acting smooth again,


1

You've likely been updating the apps, and they're using more bloated APIs. I, personally, don't see a reason every app needs to carry Unicode support, for example. Facebook would be one of the largest offenders. 3 years ago it took 70MB RAM, now 200 so that it, among other snoopy things many apps now do, can carry its own browser to better track you. It ...


1

Try 'JimTDI's Guide - Tuning the Nexus 7 with Android 5 Lollipop for Maximum Performance!' here https://goo.gl/X0HwAu The discussion for this post is here https://goo.gl/wqjv76


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There are free apps in Google Play like Trepn that show you exactly what happens to the CPU frequencies of all cores during a file download. This data is captured in the background so the screen can be off. They also show the CPU load and actual power consumption in mA or mW. I've found that downloading a large file over Wi-Fi uses more power than you would ...



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