How to fix that annoying SwiftKey lag on Galaxy S6 and Note 4 (root req'd)

Samsung's SwiftKey keyboard on TouchWiz acting out? Well, despite the latest Android 5.1.1 update you might have noticed that there is a perceived lag between tapping on a text entry field, and the keyboard popping up afterwards in a few long, excruciating seconds. 

That delay is due to forceclosing and redraw of the stock keyboard that for some reason is connected to Samsung's much maligned SPCM service that also has been blamed for the overly aggressive RAM management on its recent Android phones.

In any case, you can get rid of the delay in the SwiftKey keyboard draw on your Samsung Galaxy S6 (also shown working on the Note 4, and perhaps others with the latest update). Here's what you need to do:

1. On your rooted Galaxy S6 or another Samsung gear with this problem after the latest Android update version, go to the Play Store, and install a build.prop file editor, like Build Prop Tweaker, or whatever else tickles your fancy (ES File Explorer would do, too);

2. Open your build.prop file, and replace the line:




3. The SPCM servce culprit should be disabled now, and your keyboard lag should be cured, along with other nasty RAM management surprises the latest Samsung TouchWiz edition.

Related phones

Galaxy S6
  • Display 5.1 inches
    2560 x 1440 pixels
  • Camera 16 MP (Single camera)
    5 MP front
  • Hardware Samsung Exynos 7 Octa, 3GB RAM
  • Storage 128GB, not expandable
  • Battery 2550 mAh
  • OS Android 7.0 Nougat
    Samsung TouchWiz UI



25. Tronlol

Posts: 35; Member since: Feb 06, 2015

I think it changed my resolution.... Because my entire screen got scaled up and everything became really small

24. fay99

Posts: 118; Member since: Mar 16, 2012

Actually the 1st discovery of this switch was on Sept 25. No one cared about it for 20 days and suddenly it became a god sent? It seems to be a dirty trick that Samsung wants everyone to stick with its keyboard

23. bubbadoes

Posts: 1225; Member since: May 03, 2012

lmao techie will have a totally different rhyme to his reasoning of the OBVIOUS!

21. cnour

Posts: 2305; Member since: Sep 11, 2014

Very easy solution: buy an iPhone!!!!!

20. marorun

Posts: 5029; Member since: Mar 30, 2015

If you do what they said just remember thats No apps will be closed anymore and keep running in background.. So unless its a note 5 or edge s6+ then your battery life will become pretty crappy as its will lower it a lots because of all those app running in background. Still you will have the fastest possible phone!

19. srgonu

Posts: 574; Member since: Feb 13, 2012

Just uninstall swift key. Samsung keyboard is too good to be replaced.

16. Tarox

Posts: 114; Member since: Feb 17, 2015

So any chance here to solve this without having to root??? (I don't want to get into a situation where i suddenly can't use samsung pay and so on anymore....

12. TyrionLannister unregistered

Am I the only one without lag on Samsung keyboard. I don't use it due to its horrible prediction but it was pretty zippy.

8. maherk

Posts: 7102; Member since: Feb 10, 2012

Or you could disable the keyboard vibration.


Posts: 27; Member since: Sep 29, 2015

lmao, its 2015 and they still lag? having an octa and an overclock cpu?

6. plasteek

Posts: 265; Member since: Jun 07, 2015

I had some issues with swiftkey on my S6 but now it's fixed since i sold the S6 !

14. Zylam

Posts: 1827; Member since: Oct 20, 2010


17. lallolu

Posts: 734; Member since: Sep 18, 2012

Ahahahhahahahaajajahah You just made my day. That was really funny.

18. lallolu

Posts: 734; Member since: Sep 18, 2012

Ahahahhahahahaajajahah You just made my day. That was really funny.

22. LookyKai

Posts: 25; Member since: Sep 12, 2015

you just did the right decision in your life.

2. HugoBarraCyanogenmod

Posts: 1412; Member since: Jul 06, 2014

Try harder PA, people who wanna root, they would've getting rid of touchwiz rather follow your instructions.

3. tedkord

Posts: 17532; Member since: Jun 17, 2009

No. Because even with root, you've still got a locked bootloader, which means only TouchWIZ based roms. Regardless, on the Note 4, no TW means no S-Pen, which means no deal. Besides, CM based roms are usually super buggy with far fewer features.

5. Awalker

Posts: 1988; Member since: Aug 15, 2013

I've seen a decent amount of people with Note phones and I don't know of anyone who actually uses the pen.

9. medtxa

Posts: 1655; Member since: Jun 02, 2014

Maybe because you don't watch them full on 24 hours everyday? If you don't need the pen then just don't buy the note. What a waste.

15. Oxygen

Posts: 125; Member since: Mar 29, 2012

"Maybe because you don't watch them full on 24 hours everyday?" That was epic! hahaha

11. CLmaster

Posts: 98; Member since: Sep 06, 2014

I use the pen all the time. And despite liking more the Edge's design, I would buy the Note 6 if the next Edge comes out next year still without a pen. It's extremely useful and it keeps me from buying other brands (besides Samsung's amazing screens).

1. combatmedic870

Posts: 987; Member since: Sep 02, 2015

How to fix swift key in my iPhone 6!?!? How to fix the poll voting system on PA on mobile!?! IT'S ALL A MYSTERY!!!

4. Bm888

Posts: 517; Member since: Jul 06, 2015

Been using stock TW Samsung keyboard and have had swift experience.. I downloaded SwiftKey Neural alpha and it has even swift experience esp on language predictions...and also the tweaks.. It's awesome

10. Finalflash

Posts: 4063; Member since: Jul 23, 2013

Well the tweak mentioned here will probably not work anyway because build.prop is only used for the very first start up. Without a factory reset, this will probably not do anything.

13. crzykiller

Posts: 92; Member since: Jan 03, 2015

Lol what are you saying... build.prop info is loaded at boot at every boot... if I change something in the build.prop and reboot, the changes will activate as soon as I reboot my phone. I Should know since I have an S6 and have been modifying DHA in the build.prop these last few days

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.
FCC OKs Cingular's purchase of AT&T Wireless