sEFix (lag reduction)

sEFix (lag reduction)

100,000 - 500,000 downloads

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A simple entropy fixer for ROOTED ( devices (non-root devices can also check their entropy).

If you like the app you can also donate clicking in the donate menu option ;)

NOTE: Non-rooted devices can search this web for root instructions

NOTE2: Usually a value of 128 or 256 should be enough for many smartphones, but you can safely test with higher values.


On some (older) versions of Android, the JVM (and other components) often read random data from the blocking /dev/random, which has a low entropy by default, causing that some processes block themselves waiting for new data generation with a greater entropy. On newer builds, this problem has been solved, yet depletion of the input entropy pool still seems to slow devices.

So this fix seems to reduce some lag in the Android OS (XDA thread: )

However, the initial post makes some changes that are a little 'artificial', so I just created an app that applies a more 'natural' method based on this post: ( )

It just modifies the system's wakeup threshold to update /dev/random values when the entropy is too low and it's completely reversible.


Permissions explanation:

android.permission.ACCESS_NETWORK_STATE -> for ad banner.

android.permission.RECEIVE_BOOT_COMPLETED -> for applying the fix on boot if the user want. -> for the donations system

Tags: lag fixer for withut root, sefix v1.3, audio without lag, 4 sound reduce problem, sefix redictor de lag, configure sefix, sefix lag reduction, script reducir lag 2013, s with no wake up lag, how to fix game lag without root.

Recently changed in this version


-Removed extra permissions required in the last version.
-Small fixes.


-Improved root commands management.
-Small app improvements.
-Added superuser permission.
-Fixed some crashes.

Screenshots sEFix (lag reduction)
View bigger - sEFix (lag reduction) for Android screenshot
View bigger - sEFix (lag reduction) for Android screenshot
Comments and ratings for sEFix (lag reduction)
  • (64 stars)

    by hacker mayorga on 20/06/2014

    It fixed all of my lagging issues even on a bloated tablet!!!!

  • (64 stars)

    by Miguel Perez on 19/06/2014

    So i had 93 unread emails and as soon as i installed this app my emails went from unread to checked please i don't recommend to download this app

  • (64 stars)

    by Rendale Bernil on 15/06/2014

    I've been using it for a long while now but I don't know and want to know how this entropy stuffs work.

  • (64 stars)

    by Saad Mushtaq on 13/06/2014

    Bestorked a little

  • (64 stars)

    by Hazim Jaafar on 10/06/2014

    It does reduce lag for my Xperua E. Before I use this, my phone has trouble with slow opening apps, now it run smooth. I'd tried with maximum value and it's just amazing :)

  • (64 stars)

    by Shamim Miah on 02/06/2014

    There is no bar to change entropy

  • (64 stars)

    by Wasim Shaikh on 27/05/2014

    Awesome love it