sEFix (lag reduction)

sEFix (lag reduction)

50,000 - 100,000 downloads

Add this app to your lists
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, how to fix game lag without root, sefix v13, s with no wake up lag, 4 sound reduce problem, configure sefix, audio without lag, sefix redictor de lag, script reducir lag 2013, games lag fix 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)
  • (66 stars)

    by Abhiraj Gaikwad on 30/03/2014

    I set it to 256 and it's working fine. Is there any risk if i set it to 1024? please reply, thanks!

  • (66 stars)

    by Bone toy on 29/03/2014

    Works well on the RAZR m.

  • (66 stars)

    by Reus Dayzs on 24/03/2014


  • (66 stars)

    by Franchesca Anznth Estuita on 24/03/2014

    I love it

  • (66 stars)

    by angel guzman on 22/03/2014

    I dont have root : (

  • (66 stars)

    by arvin kosasih on 22/03/2014

    I don't know how to root it :(

  • (66 stars)

    by Lewis Jones on 22/03/2014

    Works just how it says, it reduces lag! Still experimenting at the moment. Thanks