SuperSU updated to v1.91
Posted on 2014-01-20, 48 comments, 514 +1's, imported from Google+/Chainfire

NOTICE: This content was originally posted to Google+, then imported here. Some formatting may be lost, links may be dead, and images may be missing.

I have just uploaded v1.91 to Google Play, it should start updating within a few hours. The flashable ZIP is already available here: . In-depth discussion and bug reports should go the XDA thread here:

This update will trigger a binary update (sorry). It is mainly a bugfix release fixing some edge-case issues.  There's a little bit of handling future issues as well, for more details on that wait for my next post, which should be later today.

I've included the v1.89 changes in the changelog, as that version never made it to Google Play.


  • New -cn/--context parameter for su binary (devs: see How-To SU update) 

  • Handle mksh being switched out for sh

  • Daemon forces new session immediately at launch (moved up)

  • Fixed reading dynamic properties on 4.4 (update ASAP if 4.4 user)

  • Fixed issue where root wasn't granted on CM

  • Updated language files

  • (v1.89) Add support for Samsung 4.4

  • (v1.89) Update copyright notices to 2014

Johnny Kat commented on 2014-01-20 at 12:39:

Why sometime especially after reboot supersu take great amount of time to give root to apps??

Александр commented on 2014-01-20 at 12:42:


Chainfire commented on 2014-01-20 at 13:08:

+Johnny Kat because Android is still booting and doing a lot of stuff in the background... 

Johnny Kat commented on 2014-01-20 at 13:08:


Mohd Shukri commented on 2014-01-20 at 13:37:

+1 ?

Andre McPhail commented on 2014-01-20 at 13:42:

such wow. super fast.

Azman Norahman commented on 2014-01-20 at 14:38:

Impressive.. ^_^"

Peter Anderson commented on 2014-01-20 at 15:32:

Thanks for your hard work ;)

José A. Santiago Méndez commented on 2014-01-20 at 16:36:


heru haerudin commented on 2014-01-20 at 17:06:

good Jobs bro...

pyler sm commented on 2014-01-20 at 17:16:

One bug, try launch supersu, press button Recent, try open supersu. Its broken.

Joseph Barney commented on 2014-01-20 at 17:42:

I dunno if this is the place for tech support but how do I enable OTA survival? My phone is wanting to install an update. Thanks! Nice app!

Joseph Barney commented on 2014-01-20 at 18:01:

I just read in Google play that all support is on the XDA developers forum only. headed there. Oops! I'm new to this sort of thing. Kinda surprised I got this far. Hehe

Joe Philipps commented on 2014-01-20 at 19:40:

+Joseph Barney, it is in the settings, right on the first level.  It is a checkbox.  It requires purchasing SuperSU Pro.

Joe Philipps commented on 2014-01-20 at 19:50:

+Rudy Rude, nope, the SuperSU apk will live happily in /data/app.  In fact, if one updates it, the update goes into /data/app, just like any other installed app.  On boot, the system checks the version numbers declared in the respective APKs, and ignores e.g. /system/app/Superuser.apk .  Usually you will see a message to this effect through adb logcat (assuming adb is enabled).

Noone can much help you with rooting or your failed OTA update unless you provide details.  For example, how are you rooting?  Since I have a Nexus 7, I unlocked the bootloader, used fastboot to boot TWRP recovery, selected the ADB sideload function, and used "adb sideload" (at the time, and have been updating through Play since).  You may have used one of the CF-Autoroots.  You may have used some other method with other tools; I don't know.  Are there any messages when you try about what it could or could not do?

Same thing with the OTA...what happens when you try?  "It fails" is much too generic.

Joe Philipps commented on 2014-01-20 at 19:56:

+pyler sm, I'm not sure what you're trying to ask, sorry.  But if you mean, why does it not show up in the recently used apps list, it specifically declares that property in its manifest file.  Unless the author chooses to change that attribute in the manifest in the distributed APK, it will never show.  It's not so much a bug as it is the intention of the author for some reason.

Joseph Barney commented on 2014-01-20 at 20:20:

+Joe Philipps thanks!

Wim Vandekerckhove commented on 2014-01-20 at 21:40:

+Chainfire ever since updating to the latest version on my nexus 7 2013 Greenpower app often has problems enabling WiFi again after it gets auto disabled, it often gets sick on enabling and the switch itself doesn't work anymore. Only device reboot fixes that

Chris B commented on 2014-01-20 at 22:08:

Thank you for your work. I keep buying your stuff as it help you do this work.

brandon stevens commented on 2014-01-20 at 23:25:

Galaxy s3 rooted 4.1.2, then uograded to 4.3. All hell broke out, flashing, reflashing, downgrading then upgrading. No good. Kept losing root (or never getting it).

Phone is now very clearly fixed. THANK YOU!!!!

brandon stevens commented on 2014-01-20 at 23:25:


José A. Santiago Méndez commented on 2014-01-20 at 23:48:

I want to know about knox reset if you please can give me the link for the latest stage of knox reseter to 0x0. Thanks.

José A. Santiago Méndez commented on 2014-01-20 at 23:57:

The problem is that i have bootloader 4.3 with knox and i want to downgrade and if is possible reset knox counter.

brandon stevens commented on 2014-01-21 at 06:45:

+Rudy Rude thank you, but I was aware of this. There was just something not right with the phone until this update. After upgrading to 4.3 I must have flashed/reset this phone 2 dozen times. Then yesterday this update appeared in Play, simply applied, done - both phone and I are happy. And just wanted to thank CF. Couple beers in the bin too. :-)

Miguel x-Ego commented on 2014-01-21 at 08:25:

Muy buena actualización.

Chris Dack commented on 2014-01-21 at 13:36:

+Rudy Rude if you so much as breath on the system directory checksum will fail. Examples I have had to fix: removal or modification of keyboard languages. Any kernel changes at all. Any titanium options that incorporate updates into system. Also Gps.conf or build.Prop changes are not allowed. Finally after fixing all those I found my wifi bin were still different checksum to that being checked by the ota script so I have up and flashed the system .bin from the stock images.

John Connor commented on 2014-01-21 at 14:55:

Hi, Is it possible to install it in an Android 4.1.2 Emulator? Can you tell me how to push it? Thanks!

Jeff C commented on 2014-01-21 at 22:08:

+Chainfire After installing the latest SuperSU, I'm no longer able to perform Wireless Tether with FoxFi or Trevor Mod. I've reinstalled FoxFi and re flashed current ROM. Galaxy S3 with Jellybeans from Beantown106. After updating FoxFi had me install a certificate which it didn't before. Any ideas?

Joaquín Pérez Palau commented on 2014-01-22 at 01:47:

Well, i just installed Super SU from Google play, it just rebooted my phone to factory... T_T

Cleveland Stamps commented on 2014-01-22 at 08:11:

Why is difficult for some ROMs to update su binary. I actually lost root on smartdroid ROM for sg4 i9500. Even though my backups are still rooted.

Saravana Bharathi commented on 2014-01-23 at 07:40:

+vijay lakhinana  You cant ask him for your phones update, its just super user app(For rooting) wont give you 4.4.2 update. Wait till micromax provides the update or a developer.

Sere Seraph commented on 2014-01-23 at 12:24:

+Chainfire  Thank you for your hard work. But sometimes after I'd rebooted my GT-N7100 (SSGN-II), super SU had no SU binary installed; so I had to reboot again and again to solve this problem. Any suggestion will appreciate me much.

Subhash Chander commented on 2014-01-28 at 12:06:

+Chainfire plz add support for note 3 n900......

Saleh AlHazza commented on 2014-01-29 at 05:41:

+Chainfire  i rooted my Galaxy mini 19192 and it went all fine but im having a problem with wifi not turning on :(   any idea how to fix it ? :)


iwan herman commented on 2014-01-29 at 12:52:

So good & fast

basel aljarrah commented on 2014-01-29 at 20:17:


RavenMind commented on 2014-01-30 at 04:07:

Woo! Go Chainfire. Thanks for all your hard work!!

Ashwin Kumar k commented on 2014-01-31 at 14:27:

Keep up the good work bro!

But there is a freeze issue on tab (p3110) (on Slim Kat and CM 4.4.2 ) the app takes a long time to ask for granting root permission by which time some apps FC.

Except for that all the other issues are fixed

Phil commented on 2014-02-01 at 18:51:

<3 Thanks for your app, +Chainfire

karan chordia commented on 2014-02-01 at 19:18:

+Chainfire i have note 3 sm-n900....i just updated to kit kat via +SUPERSU says tat the binary arent installed... wat doi do ..plz help me as i cant stay without root....and yeah ur doing a great job +Chainfire 

karan chordia commented on 2014-02-01 at 19:35:

or it would be helpful if u tell me the process of rooting with specific supersu version and update aswell ....and i updated my supersu from playstore but still it says no binary found...plz help .. +Chainfire 

Jasper Coolen commented on 2014-02-06 at 15:13:

Hi I installed SuperSU on my rooted Phone, but still i'm not able to remove any google apps like chat on etc. What do I do wrong?

Leonardo Barreto commented on 2014-02-22 at 15:42:

Chainfire is already available for the CF root GTI9500 with android 4.4.2?

Lion Best commented on 2014-02-25 at 10:59:

So, maybe some of you know, or maybe even the Chainfire himself, but I understand that he is busy.

I got this Note 3 MJ3, why would the Regionlock Away not work?

I am rooted using Kingo Root.

hany saed commented on 2014-03-09 at 03:50:

Very good

Malik Ibrahim commented on 2014-03-18 at 21:35:

found a very annoying bug when switching system language from english to arabic super su gives permission but apps cant use it i  tried root checker wit arabic and gave me an error when i change it back to english it works flawlessly i used app setting of exposed and changed super su locale to english while maintaing  arabic as a system language it worked but other than that it wont work hope you figure out this bug

Christian Koch commented on 2014-05-18 at 20:17:

@chainfire thank you for your work. Would it be possible to integrate your apps into the Amazon App store (at least the paid apps). Thank you very much!

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