Owners of the Nexus 7 who have experienced lag issues in the past should pay attention to the following tidbit I picked up on while perusing the Android Central Forums. By now, most of you know Android 4.1.2 was released last week, and among other things, the latest version bump is intended to help eliminate lag from your tablet.
According to AC Forum Member, mmaestro, this issue was caused by missing TRIM commands to clear storage that had been used and then subsequently freed up on some 16GB Nexus 7s that use Samsung NAND (some of the 16GB N7s use Hynix NAND, and so don’t suffer from this problem), and TRIM has been implemented in the software in 4.1.2 where the OS seems Samsung NAND.
As mmaestro points out, simply updating your device to Android 4.1.2 might not be enough to remedy the issue in all cases. If you’re in the unlucky bunch who’s still experiencing lag, don’t fret — we’ve got a solution for you. Here’s what mmaestro has to say:
The system needs to see the space filled, and then emptied so it knows that it has to properly clear the space and prepare it for fresh writes. You can do this manually by filling the space with.. whatever. MP3s, video, garbage zip files, then deleting them manually.
Now, if you don’t have access to a computer, or you’d just like a simple way to fill up and empty your SD card, you might want to check out a free app by kovit p, called Forever GoneForever Gone. This app basically fills your SD card with a bunch of blank files and then deletes everything, which is exactly what you want to do in this case.
To test his theory, I tried this out on my Nexus 7 with the Android 4.1.2 update and was able to fill my storage completely, erase it, fill it almost to capacity again, and run it through the mud. With almost a full day of less than 100MB of free space under my belt, I think it’s definitely safe to say the lag issues are gone.
Try it out for yourself and let us know what you think!